WO2020136314A1 - Organe de contact d'un dispositif électronique ou électrochimique - Google Patents
Organe de contact d'un dispositif électronique ou électrochimique Download PDFInfo
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- WO2020136314A1 WO2020136314A1 PCT/FR2019/000221 FR2019000221W WO2020136314A1 WO 2020136314 A1 WO2020136314 A1 WO 2020136314A1 FR 2019000221 W FR2019000221 W FR 2019000221W WO 2020136314 A1 WO2020136314 A1 WO 2020136314A1
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- Prior art keywords
- layer
- copper
- electronic
- strips
- electrically conductive
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
- H01G11/12—Stacked hybrid or EDL capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/74—Terminals, e.g. extensions of current collectors
- H01G11/76—Terminals, e.g. extensions of current collectors specially adapted for integration in multiple or stacked hybrid or EDL capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to electrical contact members of electronic or electrochemical devices, more particularly to electrical contact members of batteries. It relates more particularly to a method of manufacturing these contact members having a new architecture which gives them as well as to electronic or electrochemical devices comprising them an improved lifetime.
- the invention can be implemented in particular with lithium ion batteries.
- the permeation of water through this encapsulation structure is a well known phenomenon.
- the tightness of an encapsulation is usually expressed as a water vapor transmission rate (called Water Vapor Transmission Rate in English and abbreviated WVTR). This rate depends on the materials used, their method of manufacture and their thicknesses.
- the quality of the encapsulation is of paramount importance for lithium ion batteries.
- the deposition techniques by ALD are particularly well suited to cover the surfaces of the batteries in a completely waterproof and compliant manner; this is described for example in WO 2017/1 15032 (I-TEN). These techniques make it possible to produce thin films, without defects and perfectly conformal. These films provide an excellent level of protection of the batteries against the permeation of water and oxygen molecules, so that only at the place where the electrical contacts cross the encapsulation the permeation of these molecules is still possible: it is this place that most often determines the loss of tightness of the battery.
- Metallized films are known and widely used to durably protect bagged batteries (called pouch cells) from humidity.
- metals make it possible to produce very tight films, more leaktight than those based on ceramics, and even more leaktight than those based on polymers which are generally not very hermetic when passing from water molecules.
- the method of manufacturing such contact members typically requires the use of high heat treatments which can degrade the electronic and / or electrochemical devices comprising them. This is particularly the case for lithium ion batteries provided with porous electrodes and / or electrolytes impregnated with electrolytes based on ionic liquids.
- WO 2013/064 779 (l-TEN) describes a multilayer lithium ion battery in which the electrical contact members have been added at the place where the cathode current collectors, respectively anodic current are apparent, ie not coated with electrolyte insulating. These electrical contact members serve to resume the electrical connections between all the anodes on one side and all the cathodes on the other side of the battery. They electrically connect the surfaces of the anodes, respectively of the cathodes, to each other. These electrical contact members are coatings having a metallic conductivity.
- tin can be produced in the form of a single metallic layer, of tin for example or also consist of multilayers, ie consist of a first layer of conductive polymer, such as a resin loaded with silver, a second layer of nickel and a third layer of tin.
- the nickel layer protects the polymer layer during the assembly steps by soldering, and the tin layer ensures the solderability of the battery interface.
- the layers of nickel and tin are often porous and do not fully protect the battery from the atmosphere.
- the silver particles contained in the resin layer are not inert in the operating voltage ranges of the batteries. Furthermore, such a three-layer complex is more expensive to manufacture.
- the present invention aims to remedy at least in part certain drawbacks of the prior art mentioned above.
- the present invention proposes as a first object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a contact surface defining a connection area electric, characterized in that the contact member comprises a first layer, disposed on at least the electrical connection zone, this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, charged with electrically conductive particles and even more preferably a polymer resin charged with graphite.
- the electrically conductive particles are made of titanium, nitrides or carbon, in particular in the form of carbon black, graphite or even graphene.
- this contact member comprises a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact may be different.
- this contact member comprises a third layer comprising pure tin and / or pure zinc and / or a tin-metal alloy in which the metal is chosen from zinc, lead, palladium, gold , copper and a mixture thereof, arranged on the second layer.
- this contact member comprises a fourth layer of pure tin or a fourth layer of an alloy comprising silver, palladium and copper, disposed on the third layer.
- Each layer of the contact member comprising two layers, three layers or four layers, as indicated above, can be implemented with the first object above, and used in any technically compatible combination, whatever its nature chemical and the chemical nature of the first layer. Some combinations are presented below according to different embodiments.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer preferably comprising a metallic strip, placed on the first layer of material loaded with electrically conductive particles.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness less than 10 miti.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, disposed on the first layer of material loaded with electrically conductive particles.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer preferably comprising a metal strip placed on the first layer of material loaded with electrically conductive particles
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum. The nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising pure zinc, disposed on the second layer.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a contact surface defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer preferably comprising a metal strip placed on the first layer of material loaded with electrically conductive particles
- a third layer comprising a tin-metal alloy, disposed on the second layer.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material charged with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, charged with electrically particles conductive and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum. The nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising a tin-metal alloy, placed on the second layer,
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- a fourth layer of an alloy comprising silver, palladium and copper, disposed on the third layer.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises: a first layer, disposed on at least the electrical connection zone, this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising pure zinc, placed on the second layer, a fourth layer of an alloy comprising silver, palladium and copper, placed on the third layer.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles, a third layer comprising a tin-metal alloy, placed on the second layer,
- a fourth layer of an alloy comprising silver, palladium and copper, disposed on the third layer.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel and the strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising pure zinc, placed on the second layer, a fourth layer of an alloy consisting of silver, palladium and copper, placed on the third layer.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said device electronic or electrochemical comprising a contact surface defining an electrical connection zone, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising, preferably, consisting of a metal strip, disposed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising a tin-metal alloy, placed on the second layer,
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material charged with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, charged with electrically particles conductive and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising pure zinc, disposed on the second layer.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles, a third layer comprising a tin-metal alloy, disposed on the second layer.
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a contact surface defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymer resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising pure zinc, placed on the second layer, a fourth layer of pure tin, placed on the third layer.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising a tin-metal alloy, placed on the second layer,
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising pure tin, placed on the second layer, - A fourth layer of an alloy comprising silver, palladium and copper, disposed on the third layer.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising pure zinc, placed on the second layer, a fourth layer of an alloy comprising silver, palladium and copper, placed on the third layer.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising a tin-metal alloy, placed on the second layer, a fourth layer of an alloy comprising silver, palladium and copper, disposed on the third layer.
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles, a third layer comprising pure zinc, disposed on the second layer, a fourth layer of an alloy consisting of silver, palladium and copper, disposed on the third layer.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer comprising metallic copper, placed on the first layer of material loaded with electrically conductive particles,
- a third layer comprising a tin-metal alloy, placed on the second layer,
- the metal of the tin-metal alloy is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- Another object of the invention is an electronic or electrochemical device comprising at least one contact member according to the invention, the electronic or electrochemical device preferably being chosen from a capacitor, a battery and a lithium ion battery.
- Another object of the invention is a method of manufacturing at least one contact member of an electronic or electrochemical device such as a battery comprising:
- this process comprises, after step b), when said first layer is formed of polymeric resin and / or of a material obtained by a sol-gel process loaded with electrically conductive particles, a drying step followed by a step for polymerizing said polymeric resin and / or said material obtained by a sol-gel process.
- this process comprises, after step b) or after the polymerization step, the following steps:
- a metallic strip or of an ink comprising, preferably a metal, preferentially copper in the form of organic copper compounds or particles, preferably copper nanoparticles,
- the metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- this process comprises, after step d), on at least the electrical connection zone of the electronic or electrochemical device, coated with the first and the second layer, a step e) of depositing pure tin and / or zinc and / or a tin-metal alloy in which the metal is chosen from zinc, lead, palladium, gold, copper and a mixture of these, it being understood that, preferably, the deposit of 'pure tin and / or zinc is produced by electrodeposition and that, preferably, the deposition of said tin-metal alloy is carried out by soaking in a molten bath of said tin-metal alloy.
- this process comprises, after step e), on at least the electrical connection zone of the electronic or electrochemical device, coated with the first, of the second layer and of the third layer, a step f) of depositing a layer of pure tin by electrodeposition or a layer of an alloy comprising silver, palladium and copper.
- the present invention proposes as another object a contact member for an electronic or electrochemical device such as a battery, intended to ensure electrical contact with an external conductive element, said electronic or electrochemical device comprising a surface contact defining an electrical connection area, characterized in that the contact member comprises:
- this first layer comprising a material loaded with electrically conductive particles, preferably a polymeric resin and / or a material obtained by a sol-gel process, loaded with electrically conductive particles and even more preferably a polymer resin loaded with graphite,
- a second layer of conductive polymer placed on the first layer such as a layer of silver-charged epoxy resin
- a fourth layer of tin disposed on the third layer.
- FIG. 1 A] schematically represent a contact member disposed on an electrical connection area according to four variants of the invention.
- FIG. 1A illustrates the internal structure of different components of a contact member according to the first variant of the invention.
- FIG. 1 B illustrates the internal structure of different components of a contact member according to the second variant of the invention.
- FIG. 1C illustrates the internal structure of different components of a contact member according to the third variant of the invention.
- FIG. 1 D illustrates the internal structure of various constituent elements of a contact member according to the fourth variant of the invention.
- FIG. 2 shows schematically, a battery showing a central element and two contact members arranged at the two ends of the central element.
- FIG. 3 schematically shows a front view with cutaway along line III-III of a battery, showing the internal structure of the central element comprising an assembly of elementary cells covered by an encapsulation system and that of contact members according to the invention.
- FIG. 4 shows an exploded perspective view of the stack of thin layers of anode and cathode, so that these layers are offset laterally.
- FIG. 5A represents a view at the output of the anode showing areas of electrical connection, i.e. the anode current collectors surrounded on their periphery by the encapsulation system.
- FIG. 5B shows a view at the cathode outlet showing areas of electrical connection, i.e. the cathode current collectors surrounded on their periphery by the encapsulation system.
- FIG. 6A] [Fig. 6B], [Fig. 6C] and [Fig. 6D] show schematically a front view with cutaway of a battery similar to Figure 3.
- FIG. 6A illustrates the internal structure of different components of a contact member according to the first variant of the invention.
- FIG. 6B illustrates the internal structure of different components of a contact member according to the second variant of the invention.
- FIG. 6C illustrates the internal structure of different constituent elements of a contact member according to the third variant of the invention.
- FIG. 6D illustrates the internal structure of different components of a contact member according to the fourth variant of the invention.
- conductivity refers to electrical conductivity
- ink means any fluid composition which can be applied to a support and which gives, after the solidification treatment, a solid and conductive layer; an ink can in particular be a suspension or a solution.
- the treatment of an ink making it possible to obtain a conductive layer may in particular be drying, polymerization, heat treatment such as sintering.
- epoxy resin means a resin comprising at least one polyepoxide polymer.
- the electrical contact members 40 of an electronic or electrochemical device such as a battery 1, in accordance with the invention, are arranged on at least one electrical connection zone 50 of said electronic or electrochemical device, as illustrated in FIGS. 1A, 1 B, 1 C and 1 D.
- FIGS. 1A, 1 B, 1 C and 1 D illustrate the internal structure of different constituent elements of a contact member according to the first, second, third and / or fourth mode respectively realization of the invention where the different layers constituting the contact member, in addition to their role of electrical conductor, each have a particular function.
- the contact members described below can be produced on electronic or electrochemical devices, to the extent that this is possible or conceivable for those skilled in the art. These contact members are added to electronic or electrochemical devices to establish the electrical contacts necessary for the proper functioning of said devices. These contact members are advantageously usable for establishing the electrical contacts necessary for the proper functioning of batteries comprising dense or porous electrodes impregnated with a liquid electrolyte as well as batteries comprising solid electrolytes.
- the structure of the contact members 40 of an electronic or electrochemical device according to the four embodiments of the invention, in particular by way of nonlimiting example, the structure of the contact members 40 according to the invention d a battery 1 such as a lithium ion battery.
- the batteries 1 have a central structure on which an encapsulation system 30 and contact members according to the invention 40 can be deposited (cf. FIG. 2).
- Figure 3 is a front view with cutaway of a battery 1 showing the internal structure of the central element comprising an assembly of elementary cells 2 covered by an encapsulation system 30 and that of the contact members 40 according to l 'invention.
- Each elementary cell comprises an anode 10 and a cathode 20, each consisting of a stack of thin layers.
- the anode successively comprises a thin layer of an electrolyte material 13, a thin layer of an active anode material 12 such as LUTisO 3, a thin metallic layer 11 (for example made of stainless steel), a thin layer an active anode material 12 such as LuTisO ⁇ ⁇ , and a thin layer of an electrolyte material 13.
- the cathode 20 successively comprises a thin layer of an electrolyte material 23, a thin layer d cathode active material 22 such as LiMn2C> 4, a metallic thin layer 21 (for example stainless steel), a thin layer of cathode active material 22 such as LiMn 2 0) and a thin layer of an electrolyte material 23, it being understood that the battery comprises an alternating succession of at least one anode 10 and at least one cathode 20, two adjacent sheets of which define at least one projecting region RS, intended to form a zone of accessible connection and at least one recessed region RR, intended to form an overlap zone, ie reco zone opened by the encapsulation system 30, as illustrated in FIG. 4.
- the stack can be encapsulated in an encapsulation system 30 making it possible to protect the battery from the atmosphere.
- the quality of the encapsulation is of paramount importance for lithium ion batteries.
- the encapsulation system 30 is chemically stable, withstands high temperature, provides protection against moisture and is impermeable to the atmosphere to perform its barrier layer function. It can consist of several layers, not shown, successively deposited on the stack, in particular on the parts of the object needing to be protected. This encapsulation system allows electrical insulation and sealing of the electronic components or batteries while ensuring the possibility of being able to subsequently connect them electrically to each other and / or with external connection points.
- the stack coated by the encapsulation system 30 is cut along cutting planes making it possible to obtain a unitary battery, with the stripping on each of the cutting planes of the connections (+ ) and (-) of the battery, in particular in the projecting regions, so that the encapsulation system covers four of the six faces of said battery, preferably continuously, so that the system can be assembled without welding, the two other faces of the battery being subsequently coated by the contact members 40.
- the battery comprises contact members 40 at the level where the cathode current collectors, respectively anodic, are visible.
- the anode electrical connection areas 50 and the cathode electrical connection areas 50 are located on opposite sides of the stack (cf. FIGS. 5A and 5B). On and preferably around these electrical connection areas are deposited the contact members 40 according to the invention.
- FIG. 6C and FIG. 6D five embodiments of the contact members according to the invention.
- the electrical contact members 40 of an electronic or electrochemical device such as a battery 1, in accordance with the invention, comprise a first layer 41, which comprises a material charged with electrically conductive particles.
- This material is advantageously inert with respect to the electrochemical reactions taking place in said electronic or electrochemical device.
- this material is advantageously inert to the operating potentials of the electrodes of said device.
- This material is preferably a polymeric resin (preferably an epoxy resin) and / or a material obtained by a sol-gel process charged with electrically conductive particles and advantageously inert with respect to the electrochemical reactions taking place in said device.
- This material is deposited on at least one electrical connection zone 50 of the electronic or electrochemical device as illustrated in FIG. 1A.
- the device is an electrochemical device
- the materials involved in the composition or structure of the electrical contact member according to the invention advantageously materials which are inert with respect to the electrochemical reactions taking place in said device.
- the electrically conductive particles which are inert with respect to the electrochemical reactions taking place in said electronic or electrochemical device are preferably made of carbon, in particular in the form of carbon black, graphite or even graphene, or titanium, or nitrides.
- the carbon content in the suspensions or inks used to produce this first layer is preferably greater than 15% by mass.
- the polymeric resin can be an epoxy resin.
- the polymeric resin may advantageously be a polyepoxide obtained from at least one polymerizable precursor material, preferably a polyepoxide obtained from at least one photopolymerizable precursor material.
- the carbon content in the suspensions or inks used is greater than 15% by mass of carbon black.
- the material obtained by a sol-gel process can be silica.
- the polymeric resin (preferably an epoxy resin) and / or the material obtained by a sol-gel process must also be compatible with the techniques used to produce electronic or electrochemical devices, such as heat treatments.
- the polymeric resin (preferably an epoxy resin) and / or the material obtained by a sol-gel process must be chemically compatible with lithium and compatible with the steps of manufacture of such a battery in order to avoid any degradation of its properties.
- the polymeric resin (preferably an epoxy resin) and / or the material obtained by a sol-gel process must be a stable element from both a chemical and thermal point of view.
- Carbon can be introduced into the polymer resin and / or the material obtained by a sol-gel process, in the form of nanoparticles and / or in any other form.
- the layer 41 of material charged with electrically conductive particles and advantageously inert with respect to the electrochemical reactions taking place in said electronic or electrochemical device, such as a battery 1, is conductive.
- it is flexible, so that it can absorb any deformations that the electronic or electrochemical device undergoes, such as a battery 1, in particular when it is soldered to an electronic circuit. Thanks to its flexibility, this layer does not risk breaking at the interfaces in the event of mechanical stress.
- the device when the device is an electrochemical device comprising insertion materials, the latter, even if they are considered to be dimensionally stable, always deform a little according to their insertion rate. This is particularly the case for lithium ion batteries 1 comprising lithium insertion materials.
- the layer 41 of material loaded with electrically conductive particles makes the electrical contacts more reliable by absorbing the deformations, in particular during the steps of inserting and removing the electrode materials.
- the electrically conductive carbon-based particles, in particular the graphite present in the layer of material loaded with electrically conductive particles ensure good conduction at the electrical contacts without degrading the performance of the device, unlike silver-loaded epoxy resins of the prior art which are not deformable.
- carbon in particular in the form of carbon black or graphite, is less expensive than silver or than other noble metals, and the replacement of the latter with carbon, in particular in the form of carbon black or graphite, has an economic advantage.
- the layer of material loaded with electrically conductive particles advantageously has a thickness of between 5 ⁇ m and 50 ⁇ m.
- this first layer 41 has a thickness of less than 50 ⁇ m so as to minimize its resistivity: the finer this first layer 41 the less it is resistive.
- this first layer 41 has a minimum thickness of 5 ⁇ m; this makes it possible on the one hand to ensure good electrical contact between all the layers of electrodes of the electronic or electrochemical device, such as a battery, and on the other hand makes it possible to fill in the alignment and positioning defects which may exist between the electrodes.
- the polymer resin and / or the material obtained by a sol-gel process is preferably loaded with carbon; carbon is inert to the operating potentials of LUTisO- ⁇ anodes.
- This carbon can be carbon black, graphite or even graphene.
- Carbon can be introduced into the polymer resin and / or the material obtained by a sol-gel process, in the form of nanoparticles and / or in any other form.
- the method for obtaining such an electrical contact member 40 firstly comprises:
- a first layer 41 of material loaded with electrically conductive particles preferably a polymeric resin and / or a material obtained by a sol-gel process loaded with electrically conductive particles, on at least said electrical connection zone 50, preferably on at least the contact surface 51, knowing that preferably this deposit projects slightly over the ends of the contact surface, so as to completely cover the electrical connection zone 50, preferably the contact surface 51 and thus guaranteeing optimal protection of the device such as a battery, as illustrated in FIG. 6 A, by way of example.
- the layer 41 of material loaded with electrically conductive particles preferably material loaded with graphite, preferably polymer resin loaded with graphite, can be deposited by any suitable means, in particular by dipping.
- This layer 41 is preferably dried and, when the material loaded with electrically conductive particles is a polymeric resin and / or a material obtained by a sol-gel process, this layer is advantageously polymerized before any further subsequent deposition.
- the first layer is deposited as indicated above in the first embodiment, and for the same purpose.
- the electrical contact members 40 of an electronic or electrochemical device comprise a second layer 42 which comprises metallic copper deposited on the first layer 41 or a second layer 42 ′ consisting of a metallic strip deposited on the first layer 41.
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- this metal strip has a thickness less than 20 ⁇ m, preferably a thickness less than 10 ⁇ m, more preferably around 5 pm, and even more preferably below 5 pm.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- Said first layer 41 typically comprises a material charged with electrically conductive particles, preferably polymeric resin and / or a material obtained by a sol-gel process charged with electrically conductive particles (cf. FIGS. 1 B and 6 B).
- This second layer 42, 42 ′ performs two functions: on the one hand, it seals the structure, ie prevents the migration of water inside the device, and, on the other hand, it protects said first layer 41 of the atmosphere, in particular air and humidity.
- this second layer 42, 42 'avoids the degradation of the structure and improves the service life of the electronic or electrochemical device.
- the second layer 42 comprising metallic copper facilitates the connections between the various components of the integrated circuit, and facilitates in fine its implementation.
- the method for obtaining such electrical contact members 40 firstly comprises:
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the heat treatment of at least the second deposited layer facilitates the adhesion between the first layer and the second layer, ie facilitates the adhesion between the electrical connection zones (anodic and cathodic) and the second layer and makes it possible to obtain a conductive layer 42 ′ secured to the first layer.
- solidarity means that, under normal conditions of use, the first layer and the second layer are fixed to each other without degree of freedom.
- the conductive layer 42 ′ advantageously has a thickness of between 1 ⁇ m and 50 ⁇ m and preferably between 3 ⁇ m and 20 ⁇ m, independently of the variant embodiments according to the invention.
- a thickness of 1 ⁇ m is sufficient to seal the electronic or electrochemical device such as a battery 1.
- the heat treatment of at least the second deposited layer makes it possible to obtain a layer conductive metallic copper 42 free of organic compounds.
- the metallic copper layer 42 advantageously has a thickness of between 1 ⁇ m and 50 ⁇ m and preferably between 3 ⁇ m and 20 ⁇ m, independently of the variant embodiments according to the invention. A thickness of 1 ⁇ m is sufficient to seal the electronic or electrochemical device such as a battery 1.
- the deposition, on the first layer 41, of an ink comprising copper in the form of organo-copper compounds or copper particles, preferably copper nanoparticles, can be carried out by any suitable means, preferably by dipping.
- the copper layer 42 can in particular be deposited electrochemically, however this technique requires quenching the electrical connection area covered with a material charged with electrically conductive particles, preferably covered with polymeric resin and / or a material obtained by a process. sol-gel loaded in an aqueous bath. As this electrical contact is not perfectly sealed, it is preferable not to use such techniques so as not to degrade the performance of the electronic or electrochemical device, i.e. of the battery.
- organic ink-based deposition techniques are preferred, ie solutions comprising organo-copper compounds or suspensions comprising copper particles, preferably dispersed copper nanoparticles in an organic solvent.
- the organic inks used comprising copper in the form of organo-copper compounds or copper particles, preferably copper nanoparticles
- PVP polyvinylpyrrolidone
- the ink comprises copper particles, preferably copper nanoparticles
- the latter represent between 10% and 85% by mass of the ink.
- the dilution rate of the copper particles in the ink will modulate the viscosity of the suspension, which will allow the thickness of the deposit of the second layer to be adjusted.
- the solvents used to formulate this ink can be organic, in particular ethylene glycol.
- the average diameter of the copper particles is of the order of ten nanometers, preferably between 30 nm and 40 nm.
- the heat treatment of the ink deposited on the first layer is sintering: it aims to increase the density of at least the second deposited layer comprising copper nanoparticles. It can be carried out by the flash sintering technique (known by the English expression “Flash Light Sintering”), in particular by sintering under a pulsed Xenon lamp.
- This layer 42 however includes organic insulating materials which must be removed by heat treatment.
- the heat treatment leads to the decomposition of the organic compounds of the suspensions or inks which leave in the vapor phase, to leave only a deposit of metallic copper.
- the deposited layers are densified, in order to minimize the presence of cavities, pores, cracks and other compactness defects.
- This densification step can be carried out by heat treatment and / or by irradiation under a Xenon lamp.
- the optimum temperature is highly dependent on the chemical composition of the suspensions, inks, resins and powders deposited.
- the sintering is carried out at a temperature not exceeding 300 ° C. In some embodiments, it does not exceed 200 ° C.
- the inventor has found that the smaller the size of the deposited copper particles, the more the temperature of the heat treatment can be reduced. It is thus possible to produce deposits in thin layers with a porosity rate of less than 5% or even less than 2%, without having to resort to significant temperatures and / or thermal treatment time.
- the suspensions or inks used contain copper nanoparticles, this makes it possible to reduce the temperatures and sintering times which are of the order of 200-300 ° C to obtain an almost completely densified layer, ie a layer with a porosity rate less than or equal to 5%.
- the densification step is carried out after the deposition of this second layer (before the deposition of a new layer), by sintering, preferably by irradiation with UV lamps, in order to obtain a layer of good quality metallic copper with low internal resistance, as well that a good bond between the first and second layers.
- the metallic copper layer creates a bonding surface suitable for the deposition of other layers by immersion in a bath of molten metal or alloy, even if the metallic copper layer is not 100% consolidated. In fact, alloys based on tin and / or zinc wet copper surfaces well.
- the electrical contact members of an electronic or electrochemical device in accordance with the invention include:
- a first layer 41 of material charged with electrically conductive particles preferably a polymer resin and / or a material obtained by a sol-gel process charged with electrically conductive particles, and even more preferably with epoxy resin charged with electrically conductive particles, deposited on at least one electrical connection area of the electronic or electrochemical device, preferably on at least one contact surface defining said electrical connection area, so as to completely cover the electrical connection area, preferably the contact surface and thus guaranteeing optimal protection of the device,
- a second layer 42 consisting of a metal strip, preferably chosen from aluminum strips and stainless steel strips, or comprising metallic copper, deposited on the first layer of material loaded with electrically conductive particles,
- a third layer 43 comprising pure tin and / or pure zinc and / or a tin-metal alloy in which the metal is chosen from zinc, lead, palladium, gold, copper and a mixture of these, said third layer being deposited on said second layer (cf. FIGS. 1 C and 6 C).
- This metal strip is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, and even more preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the second layer comprising metallic copper can be obtained by depositing an ink.
- an ink is deposited on the first layer, it is advantageously deposited by dipping.
- the first and second layers are deposited as indicated above in the second embodiment, and for the same purpose.
- the third layer 43 comprises pure tin and / or pure zinc and / or a tin-metal alloy in which the metal is chosen from zinc, lead, palladium, gold, copper and a mixture of these.
- Said tin-metal alloy is deposited by any suitable means on said second layer, preferably by dipping in a bath of the molten alloy. The good wetting properties of these metals and alloys in fusion on copper make it possible to ensure the perfect filling of all the defects and ensures this low WVTR.
- WVTR water vapor permeance
- the chemical composition of the alloy deposited by immersion in the molten bath is defined so that the melting temperature of the alloy is as low as possible but always above 250 ° C. to guarantee compatibility and integrity of this protective metallic layer during the subsequent welding-reflow stages, called solder-reflow in English.
- the layers obtained by immersion in a bath of molten metal are said to be completely dense, metallic and completely impermeable with respect to permeation to water molecules. Also, this third metal layer 43 ensures complete sealing of the battery.
- the potential faults present in the metallic copper layer 42 are then sealed by the production of this third layer by immersion in the molten metal bath, by galvanization or by tinning (known in English as the expression tinning or hot dip tinning).
- This third layer 43 seals the device as well as its weldability.
- Said third layer is deposited by a simple, quick and easy to implement process. It is no longer necessary to use methods such as atomic layer deposition (ALD) or deposition methods under vacuum to obtain a good seal of the electrical contact members and of the structure of the device.
- ALD atomic layer deposition
- deposition methods under vacuum to obtain a good seal of the electrical contact members and of the structure of the device.
- the third layer 43 comprises alloys with a low melting point.
- these alloys are designed to have a melting temperature between 280 and 320 ° C so as not to alter the battery and remain solid during the assembly steps by reflow; reflow soldering of electronic components taking place at 260 ° C.
- Sn / Zn alloys are preferred, in which the Zn content would be around 40% +/- 10% by mass, which makes it possible to obtain a melting point of around 300 ° C., or a melting point higher than that of pure tin used for reflow assemblies (232 ° C).
- the tin-metal alloy (such as the tin-zinc alloy) wets and perfectly covers the copper present in the second layer 42. After cooling, this third layer is dense, i.e. free of pores.
- the electrical contact members of an electronic or electrochemical device such as a battery include:
- a first layer 41 of material charged with electrically conductive particles which are inert with respect to the electrochemical reactions taking place in the battery preferably a polymer resin and / or a material obtained by a sol-gel process charged with electric particles conductive and inert with respect to the electrochemical reactions taking place in the battery, and even more preferably with epoxy resin charged with electrically conductive particles and inert with respect to the electrochemical reactions taking place in the battery, deposited on at least one electrical connection area of the electronic or electrochemical device, preferably on at least one contact surface defining said electrical connection area, so as to completely cover the electrical connection area, preferably the contact area and thus guaranteeing optimal protection of the device,
- a second layer 42, 42 ’ consisting of a metallic strip or comprising metallic copper deposited on the first layer
- a third layer 43 comprising pure tin and / or pure zinc and / or a tin-metal alloy in which the metal is chosen from zinc, lead, palladium, gold, copper and a mixture of these, deposited on the second layer, and -
- the metal strip of the second layer is preferably chosen from aluminum strips, copper strips, titanium strips, molybdenum strips, stainless steel strips and strips comprising metallic copper.
- the second layer preferably has a thickness of less than 20 ⁇ m, preferably a thickness of less than 10 ⁇ m.
- the metal of the metal strip can be an alloy such as stainless steel or a pure metal such as copper, aluminum, titanium or molybdenum.
- the nature of the metal strips, of the contact members according to the invention, used to bring the anodes and cathodes into contact, may be different.
- the first, second and third layers are deposited as indicated above in the first, the second and the third embodiment and for the same purpose.
- the fourth layer 44 of pure tin or the fourth layer of an alloy comprising, preferably containing silver, palladium and copper, is deposited, by any suitable means, on the third layer.
- pure metals such as tin are deposited by electrodeposition.
- This fourth layer guarantees the quality of the connections of the electrical contact members by a simple, quick and easy to implement process, reduces the contact resistances while imparting good weldability of the electrical contact members.
- the latter advantageously ensures low oxidation of the contacts.
- the fourth layer comprises an alloy comprising, preferably containing silver, palladium and copper, this alloy does not oxidize unlike tin, and thus gives the electrical contact members better performance in the time.
- the electronic or electrochemical device comprising at least one such contact member has a very long service life.
- the first layer is deposited as indicated above in the first embodiment, and for the same purpose.
- the electrical contact members 40 of an electronic or electrochemical device consist of ie multilayers consist of a first layer 41, a second layer of conductive polymer disposed on the first layer, such as an epoxy resin loaded with silver, a third layer of nickel disposed on the second layer and a fourth layer of tin disposed on the third layer.
- Said first layer 41 typically comprises a material charged with electrically conductive particles, preferably polymeric resin and / or a material obtained by a sol-gel process charged with electrically conductive particles. This first layer avoids the insertion of lithium into the second layer of conductive polymer, such as a silver-charged resin.
- the second of conductive polymer preferably of epoxy resin loaded with silver, makes it possible to provide “flexibility” to the connectors without breaking the electrical contact when the electrical circuit is subjected to thermal and / or vibratory stresses.
- the nickel layer protects the polymer layer during the assembly steps by soldering, and the tin layer ensures the solderability of the battery interface.
- the battery according to the invention can be a lithium ion microbattery, a lithium ion minibattery, or even a high power lithium ion battery.
- it can be designed and dimensioned so as to have a capacity less than or equal to approximately 1 mA h (commonly called “microbattery”), so as to have a power greater than approximately 1 mA h up to approximately 1 A h ( commonly called “mini-battery”), or so as to have a capacity greater than about 1 A h (commonly called “power battery”).
- microbatteries are designed to be compatible with microelectronics manufacturing processes.
- the batteries of each of these three power ranges can be produced: either with “all solid” type layers, ie devoid of impregnated liquid or pasty phases (said liquid or pasty phases possibly being a conductor of lithium ions, capable of acting as an electrolyte),
- mesoporous “all solid” type layers impregnated with a liquid or pasty phase, typically a medium conducting lithium ions, which spontaneously enters the layer and which no longer emerges from this layer, so that this layer can be considered as quasi-solid, either with impregnated porous layers (ie layers having a network of open pores which can be impregnated with a liquid or pasty phase, and which gives these layers wet properties).
- the method according to the invention can be implemented in the following manner, in the context of the manufacture of a battery, in particular of its contact members.
- Example 1 Manufacture of a battery 1 using electrical contact members 40 according to the invention
- Nanoparticles of Li 4 Ti 5 0i 2 were prepared as anode material by grinding so as to obtain a particle size of less than 100 nm. The Li 4 Ti 5 0i 2 nanoparticles were then dispersed in absolute ethanol at 10 g / I with a few ppm of citric acid in order to obtain a suspension of LUTisO ⁇ ⁇ nanoparticles.
- the negative electrodes were prepared by electrophoretic deposition of Li 4 Ti 5 0i 2 nanoparticles contained in the suspension previously prepared, on stainless steel strips. Li Ti film 5 0i 2 (about 1 micron) was deposited on both faces of the substrate. These films were then heat treated at 600 ° C for 1 h in order to weld the nanoparticles together, to improve adhesion to the substrate and to perfect the recrystallization of LLT15O12
- the Lii + x Mn 2 -y0 4 nanoparticles were then dispersed in absolute ethanol at 25 g / l in order to obtain a suspension of Lii + x Mn 2 - y 0 4 nanoparticles. This suspension was then diluted in acetone to a concentration of 5 g / l.
- the thin film of Lii + x Mn 2-y 0 4 (about 1 micron) was deposited on both sides of the substrate. These films were then heat treated at 600 ° C for 1 h in order to weld the nanoparticles together, to improve adhesion to the substrate and to perfect the recrystallization of Lii + x Mn 2-y 0 4 .
- Solution B was then added, with vigorous stirring, to solution A.
- the reaction medium was homogenized for 5 minutes and then was kept for 10 minutes with magnetic stirring. Decanted for 1 to 2 hours. The supernatant was discarded and the remaining suspension was centrifuged for 10 minutes at 6000 g. Then 1.2 liters of water were added to resuspend the precipitate (use of a sonotrode, magnetic stirring). Two more such washes were then performed with ethanol. With vigorous stirring, 15 ml of a solution of Bis [2- (methacryloyloxy) ethyl] phosphate at 1 g / ml were added to the colloidal suspension in ethanol thus obtained. The suspension thus became more stable. The suspension was then sonicated using a sonotrode.
- the suspension was then centrifuged for 10 minutes at 6000 g.
- the pellet was then redispersed in 1.2 l of ethanol and then centrifuged for 10 mins at 6000 g.
- the pellets obtained are redispersed in 900 ml of ethanol in order to obtain a suspension at 15 g / l capable of producing an electrophoretic deposit.
- Thin porous layers of U 3 PO 4 were then deposited by electrophoresis on the surface of the anodes and cathodes previously produced by applying an electric field of 20V / cm to the suspension of nanoparticles of U 3 PO 4 previously obtained, for 90 seconds to obtain a layer of approximately 2 ⁇ m.
- the layer was then air dried at 120 ° C and then a calcination treatment at 350 ° C for 120 minutes was carried out on this previously dried layer in order to remove all traces of organic residues.
- Several anodes, respectively cathodes, in thin layers were produced according to the method described above.
- the stack was placed under a pressure of 5 MPa and then dried under vacuum for 30 minutes at 10 -3 bar.
- the press plates were then heated to 550 ° C with a speed of 0.4 ° C / second.
- the stack was then thermo compressed under a pressure of 45 MPa for 20 minutes, then the system was cooled to room temperature.
- a lithium ion battery comprising several electrochemical cells, each comprising electrodes according to the invention, was thus obtained.
- An electrochemical cell respectively a battery comprising several electrochemical cells, was produced according to example e), respectively example f). These devices have been encapsulated by successive layers.
- a first layer of parylene F (CAS 1785-64-4) about 2 ⁇ m thick was deposited by CVD on the electrochemical cell, respectively on the battery comprising several electrochemical cells.
- a layer of alumina AI 2 O 3 was then deposited by ALD on this first layer of parylene F.
- the electrochemical cell, respectively the battery comprising several electrochemical cells coated with a layer of parylene was introduced into the chamber of a ALD P300 Picosun TM reactor.
- the ALD reactor chamber was previously placed under vacuum at 5 hPa and at 120 ° C.
- TMA trimethylaluminium
- a layer of parylene F approximately 2 ⁇ m thick was then deposited by CVD on the second layer of alumina AI 2 O 3 .
- Al 2 O 3 alumina layer approximately 30 nm thick was then deposited by ALD, as indicated above, on this third layer of parylene F.
- This fourth layer was then deposited by dipping a layer of epoxy resin of approximately 10 ⁇ m.
- This fifth layer was then cured under ultraviolet (UV) so as to reduce the rate of degradation of the battery by atmospheric elements.
- UV ultraviolet
- the stack thus encapsulated was then cut along cutting planes making it possible to obtain an electrochemical cell, respectively a unitary battery, with the exposure on each of the cutting planes of the cathode current collectors, respectively anodic of the electrochemical cell , respectively from the battery.
- the encapsulated stack was thus cut on two of the six faces of the stack so as to make the cathode current collectors, respectively anodic current collectors, visible.
- PYR14TFSI is the common abbreviation of 1-butyl-1-methylpyrrolidinium bis (trifluoromethanesulfonyl) imide.
- LITFSI is the common abbreviation for lithium bis-trifluoromethanesulfonimide (CAS No 90076-65-6).
- the ionic liquid instantly enters capillaries into the porosities. Each of the two ends of the system was kept immersed for 5 minutes in a drop of the electrolytic mixture, then any residual surplus is removed by buffering.
- a suspension comprising a ConductiveX Electro-bond 62 type resin loaded with graphite was diluted in toluene in order to reduce the viscosity of the suspension to a value close to 50 Kpcs.
- the ends of the electrochemical cell, respectively of the battery, encapsulated and cut were soaked in this suspension comprising a ConductiveX Electro-bond 62 type resin loaded with graphite.
- the first resin-based layer of ConductiveX Electro-bond 62 type loaded with graphite has a thickness of the order of 30 ⁇ m.
- This first layer was then dried at 60 ° C for 4 hours.
- the ends of the electrochemical cell, respectively of the battery, encapsulated, cut and thus coated were soaked in an Applied Nanotech CU-IJ70 ink loaded with copper nanoparticles having a dry extract of 50% by mass and a viscosity of between 10 and 20 cP.
- the thickness deposited was between 6 and 8 pm.
- This second layer was then dried at 100 ° C for 30 minutes, then sintered by exposure to a Xenon lamp in single pulse mode of 2 msec at 2.6kV with a distance of 2.5 cm between the lamp and the electric contact.
- the electrical contact member was then immersed in a molten bath of the Sn-Zn alloy at 40% by mass, so as to form a third layer based on Sn-Zn.
- the ends of the electrochemical cell, respectively of the battery, encapsulated, cut and thus coated with this third layer were then immersed for 35 minutes in a bath of tin sulfonate and boric acid at pH 4 maintained at 25 ° C. . Pure tin was thus deposited at the ends of the electrochemical cell, respectively of the battery, encapsulated, cut and thus coated.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Primary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Secondary Cells (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Ceramic Capacitors (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020217019526A KR20210107012A (ko) | 2018-12-24 | 2019-12-24 | 전자 또는 전기화학 장치를 위한 컨택 유닛 |
| JP2021535761A JP2022514414A (ja) | 2018-12-24 | 2019-12-24 | 電子又は電気化学デバイスのための接触ユニット |
| CN201980085944.4A CN113228405A (zh) | 2018-12-24 | 2019-12-24 | 电子或电化学装置用接触单元 |
| EP19845583.4A EP3903369A1 (fr) | 2018-12-24 | 2019-12-24 | Organe de contact d'un dispositif électronique ou électrochimique |
| US17/311,734 US20220029252A1 (en) | 2018-12-24 | 2019-12-24 | Contact unit for an electronic or electrochemical device |
| CA3124614A CA3124614A1 (fr) | 2018-12-24 | 2019-12-24 | Organe de contact d'un dispositif electronique ou electrochimique |
| SG11202105826YA SG11202105826YA (en) | 2018-12-24 | 2019-12-24 | Contact unit for an electronic or electrochemical device |
| IL283555A IL283555A (en) | 2018-12-24 | 2021-05-30 | Contact unit for an electronic or electrochemical device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1874100A FR3091040B1 (fr) | 2018-12-24 | 2018-12-24 | Organe de contact d’un dispositif electronique ou electrochimique |
| FR1874100 | 2018-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020136314A1 true WO2020136314A1 (fr) | 2020-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2019/000221 Ceased WO2020136314A1 (fr) | 2018-12-24 | 2019-12-24 | Organe de contact d'un dispositif électronique ou électrochimique |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20220029252A1 (fr) |
| EP (1) | EP3903369A1 (fr) |
| JP (1) | JP2022514414A (fr) |
| KR (1) | KR20210107012A (fr) |
| CN (1) | CN113228405A (fr) |
| CA (1) | CA3124614A1 (fr) |
| FR (1) | FR3091040B1 (fr) |
| IL (1) | IL283555A (fr) |
| SG (1) | SG11202105826YA (fr) |
| WO (1) | WO2020136314A1 (fr) |
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| JP7190937B2 (ja) * | 2019-02-27 | 2022-12-16 | 京セラ株式会社 | 積層セラミック電子部品 |
| CN118145970B (zh) * | 2024-03-15 | 2026-02-13 | 娄底市安地亚斯电子陶瓷有限公司 | 刀片电池用陶瓷密封连接器负极端子及制备方法 |
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| US20100302704A1 (en) * | 2009-06-01 | 2010-12-02 | Murata Manufacturing Co., Ltd. | Laminated electronic component and manufacturing method therefor |
| WO2013064779A1 (fr) | 2011-11-02 | 2013-05-10 | Fabien Gaben | Procede de fabrication de batteries en couches minces entierement solides |
| US20140319974A1 (en) * | 2011-12-16 | 2014-10-30 | Epcos Ag | Electrical Component and Method for Producing an Electrical Component |
| WO2017115032A1 (fr) | 2015-12-31 | 2017-07-06 | I-Ten | Batterie entierement solide comprenant un electrolyte solide et une couche de materiau conducteur ionique |
| US20180286594A1 (en) * | 2017-04-04 | 2018-10-04 | Samsung Electro-Mechanics Co., Ltd. | Multilayer capacitor |
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| JPS497756A (fr) * | 1972-05-11 | 1974-01-23 | ||
| JPS63108662A (ja) * | 1986-10-24 | 1988-05-13 | Sanyo Electric Co Ltd | 薄型電池 |
| US6917094B2 (en) * | 2002-11-29 | 2005-07-12 | Honda Motor Co., Ltd | Electrode for electric double layer capacitor |
| JP4844311B2 (ja) * | 2006-09-14 | 2011-12-28 | 株式会社村田製作所 | セラミック電子部品 |
| JP4921995B2 (ja) * | 2007-01-31 | 2012-04-25 | 東洋Fpp株式会社 | 面状発熱体及びその製造方法 |
| CN105190953A (zh) * | 2013-03-05 | 2015-12-23 | 赛昂能源有限公司 | 包含原纤维材料如原纤维纤维素材料的电化学电池 |
| US20170155169A1 (en) * | 2015-11-30 | 2017-06-01 | University Of Maryland, College Park | Ceramic ion conducting structures and methods of fabricating same, and uses of same |
| US20160056455A1 (en) * | 2013-04-02 | 2016-02-25 | Taiyo Chemical Technology Co., Ltd. | Structure equipped with amorphous carbon film having electrically conductive part and containing silicon, and method for manufacturing same |
| WO2016031270A1 (fr) * | 2014-08-27 | 2016-03-03 | 株式会社村田製作所 | Dispositif de stockage d'énergie électrique |
| US10461373B2 (en) * | 2015-12-03 | 2019-10-29 | GM Global Technology Operations LLC | Adding dry metal oxide for metal nitride particles to improve battery cycle life and power performance |
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| KR101922879B1 (ko) * | 2017-04-04 | 2018-11-29 | 삼성전기 주식회사 | 적층형 커패시터 |
| JP2018181461A (ja) * | 2017-04-05 | 2018-11-15 | トヨタ自動車株式会社 | 積層電池 |
| WO2018186449A1 (fr) * | 2017-04-07 | 2018-10-11 | 株式会社村田製作所 | Cellule secondaire |
| CN207009539U (zh) * | 2017-07-10 | 2018-02-13 | 宁德新能源科技有限公司 | 极片及电芯 |
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2018
- 2018-12-24 FR FR1874100A patent/FR3091040B1/fr active Active
-
2019
- 2019-12-24 CA CA3124614A patent/CA3124614A1/fr active Pending
- 2019-12-24 US US17/311,734 patent/US20220029252A1/en active Pending
- 2019-12-24 KR KR1020217019526A patent/KR20210107012A/ko active Pending
- 2019-12-24 EP EP19845583.4A patent/EP3903369A1/fr active Pending
- 2019-12-24 CN CN201980085944.4A patent/CN113228405A/zh active Pending
- 2019-12-24 JP JP2021535761A patent/JP2022514414A/ja active Pending
- 2019-12-24 WO PCT/FR2019/000221 patent/WO2020136314A1/fr not_active Ceased
- 2019-12-24 SG SG11202105826YA patent/SG11202105826YA/en unknown
-
2021
- 2021-05-30 IL IL283555A patent/IL283555A/en unknown
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| US7624621B2 (en) | 2006-02-15 | 2009-12-01 | Commissariat A L'energie Atomique | Method and device for measurement of permeation |
| US20100302704A1 (en) * | 2009-06-01 | 2010-12-02 | Murata Manufacturing Co., Ltd. | Laminated electronic component and manufacturing method therefor |
| WO2013064779A1 (fr) | 2011-11-02 | 2013-05-10 | Fabien Gaben | Procede de fabrication de batteries en couches minces entierement solides |
| US20140319974A1 (en) * | 2011-12-16 | 2014-10-30 | Epcos Ag | Electrical Component and Method for Producing an Electrical Component |
| WO2017115032A1 (fr) | 2015-12-31 | 2017-07-06 | I-Ten | Batterie entierement solide comprenant un electrolyte solide et une couche de materiau conducteur ionique |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113228405A (zh) | 2021-08-06 |
| IL283555A (en) | 2021-07-29 |
| EP3903369A1 (fr) | 2021-11-03 |
| US20220029252A1 (en) | 2022-01-27 |
| JP2022514414A (ja) | 2022-02-10 |
| KR20210107012A (ko) | 2021-08-31 |
| FR3091040A1 (fr) | 2020-06-26 |
| CA3124614A1 (fr) | 2020-07-02 |
| FR3091040B1 (fr) | 2022-12-09 |
| SG11202105826YA (en) | 2021-06-29 |
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