WO2005117162A1 - Batterie au lithium-ion dotee d'un boitier plastique impermeable - Google Patents

Batterie au lithium-ion dotee d'un boitier plastique impermeable Download PDF

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Publication number
WO2005117162A1
WO2005117162A1 PCT/CN2004/000536 CN2004000536W WO2005117162A1 WO 2005117162 A1 WO2005117162 A1 WO 2005117162A1 CN 2004000536 W CN2004000536 W CN 2004000536W WO 2005117162 A1 WO2005117162 A1 WO 2005117162A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic case
core
plastic
case
ion battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2004/000536
Other languages
English (en)
Chinese (zh)
Inventor
Hing Ka Chung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chung Hai
Original Assignee
Chung Hai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chung Hai filed Critical Chung Hai
Priority to PCT/CN2004/000536 priority Critical patent/WO2005117162A1/fr
Publication of WO2005117162A1 publication Critical patent/WO2005117162A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/121—Organic material
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to the improvement of the structure of a plastic case lithium ion battery, in particular to a non-impregnated plastic case power type lithium ion battery.
  • Lithium-ion batteries generally have a structure: a core made of a stack of positive and negative electrodes and a separator or a roll, and then the core is enclosed in a case, and the positive and negative electrodes of the core are Gui is led out of the casing, and the casing is filled with electrolyte. Due to molding and easy availability of materials, manufacturers have introduced beautiful-shaped plastic-case lithium-ion batteries. Lithium-ion batteries with plastic cases instead of metal cases have reduced manufacturing costs, reduced product weight, and facilitated portability. And transportation.
  • the object of the present invention is to provide a non-impregnated plastic case power lithium-ion battery capable of overcoming the defects of the above-mentioned plastic case lithium-ion battery, which can overcome the defects of the existing plastic case lithium-ion battery.
  • the non-impregnated plastic case power type lithium ion battery of the present invention comprises: a core body made of a positive electrode plate and a negative electrode plate and a separator stacked or rolled; a plastic case closed by the core body; The reason is that: between the inner wall of the plastic shell and the core, it can completely isolate the air and Isolation layer to avoid electrolyte corrosion on its inner wall surface.
  • the isolation layer is an aluminum-plastic composite film sleeve bag into which a core can be placed.
  • the isolation layer may also be a nickel anticorrosive coating or an aluminum anticorrosive coating applied on the inner wall surface of the plastic shell.
  • the non-impregnated plastic case power lithium-ion battery of the present invention has a scientific design, simple structure and reasonable structure. It completely separates the battery core and the electrolyte from the atmosphere by adding an isolation layer in the plastic case, which prevents air from passing through the plastic case. Immersion in the battery can also prevent the electrolyte from contacting the inner wall of the case, thereby eliminating the corrosion of the plastic case by the electrolyte, and overcoming the defects of the existing lithium-ion battery with a plastic case structure. This structural improvement can ensure that the electrolyte in the battery does not change the performance of electrochemical substances, the battery has various performance and quality indicators, and maintains the advantages of a light plastic case, a wide range of raw materials, low prices, and easy molding.
  • the technical solution of the present invention is applicable to both a wound plastic case lithium ion battery and a stacked type plastic case lithium ion battery.
  • FIG. 1 is a schematic structural diagram of a non-impregnated plastic case power lithium-ion battery
  • FIG. 2 is a schematic diagram of a wound core structure of the non-impregnated plastic case power lithium-ion battery
  • FIG. 3 is another structural schematic diagram of a non-impregnated plastic case power lithium-ion battery
  • FIG. 4 is a schematic structural diagram of a stacked core of the non-impregnated plastic case power lithium-ion battery. detailed description
  • Example h It can be clearly seen from FIG. 1 that this is a wound-type non-impregnated plastic case power lithium-ion battery, which is composed of a core 1 and a plastic case 2 for closing the core.
  • the core 1 is formed by binding the strip-shaped positive electrode sheet 11 and the negative electrode sheet 12 and the separator 13 into a cylindrical shape and bundling them by two pole heads 14 with opposite polarities (see FIG. 2).
  • the plastic casing 2 is composed of a tube sleeve 21 with screw holes at both ends and two end covers 22 which can be matched with the screw ends of the tube sleeve 21.
  • the end cover 22 is provided with belts for both ends of the core 1 A through hole led out of the head pole 14.
  • the inner wall of the pipe sleeve 21 and the inner wall of the two end covers 22 are coated with a nickel anticorrosive coating 3.
  • the core body 1 is placed in the tube sleeve 21 of the plastic case 2.
  • the two end caps 22 are respectively installed at the two ends of the tube sleeve 21 by screwing.
  • the two pole heads 14 of the core body 1 are respectively covered from the two end caps 22.
  • the through hole is led out, and the through hole of the end cover 22 is closed by the sealing ring 4 and the nut 5 with the threads on the pole.
  • the closed plastic case 2 is filled with electrolyte to form a non-impregnated plastic case power lithium. Ion battery.
  • Embodiment 2 It can be clearly seen from FIG. 3 that this is a stacked type non-impregnated plastic case power type lithium ion battery, which includes: a core body 1, a rectangular plastic case 2 for closing the core body, and a
  • the core body can be composed of an aluminum-plastic composite film sleeve 6.
  • the core body 1 is composed of a plurality of rectangular sheet positive electrode sheets 11, a plurality of negative electrode sheets 12, and a separator 13, which are alternately stacked and bound by two belt head pole posts 14 of opposite polarities (see FIG. 4).
  • the aluminum-plastic composite film bag 6 has a rectangular structure corresponding to the core body 1 and is made of an insulating aluminum film.
  • the hole and the core 1 are placed in an aluminum-plastic composite film sleeve 6, and the periphery of the aluminum-plastic composite film sleeve 6 is sealed by a heat sealing process, and the inside is filled with an electrolyte.
  • the plastic casing 2 is composed of a box body 21 and a box cover 22, and a core body is provided on the box cover 21 1
  • the through hole of the pole end of the pole head 14 is protruded, and the bottom of the box body 21 is provided with a through hole for the pole 14 of the other end of the core body 1 to protrude.
  • the core body 1 enclosed in the aluminum-plastic composite film sleeve 3 is placed in the box body 21 of the rectangular plastic shell 2.
  • the belt pole pole 14 at one end of the core body 1 is led out from the through hole at the bottom of the box body 21 and locked with a nut. Tighten, then close the lid 22, the other end of the core body 1 with a lead pole 14 is led out from the through hole of the lid 22 and locked with the nut 5 and the thread on the pole, and it becomes a non-impregnated plastic shell power type Lithium-ion battery.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention a trait à une batterie au lithium-ion dotée d'un boîtier plastique imperméable, qui comprend : un noyau constitué d'une électrode positive, d'une électrode négative et d'un séparateur stratifiés ou enroulés ; un boîtier en plastique, destiné à assurer l'étanchéité du noyau et entièrement rempli d'un électrolyte, le boîtier étant caractérisé en ce qu'une couche isolante est placée entre la paroi interne du boîtier plastique et le noyau, laquelle non seulement isole complètement de l'air mais également protège la paroi interne du boîtier contre la corrosion électrolytique. Cette amélioration structurelle permet d'isoler complètement le noyau de la batterie et l'électrolyte de l'atmosphère, et d'empêcher la pénétration d'air dans la batterie à travers le boîtier plastique, ce qui maintient l'efficacité électrochimique de la solution électrolytique contenue dans la batterie, garantit la stabilité des divers indices d'efficacité et de qualité de la batterie, et préserve les avantages présentés par un boîtier plastique léger, une large source de matières premières, un coût peu élevé et un moulage facile. L'invention peut être appliquée aussi bien aux batteries au lithium-ion à boîtier plastique de type enroulé qu'aux batteries au lithium-ion à boîtier plastique de type stratifié.
PCT/CN2004/000536 2004-05-26 2004-05-26 Batterie au lithium-ion dotee d'un boitier plastique impermeable Ceased WO2005117162A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/000536 WO2005117162A1 (fr) 2004-05-26 2004-05-26 Batterie au lithium-ion dotee d'un boitier plastique impermeable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/000536 WO2005117162A1 (fr) 2004-05-26 2004-05-26 Batterie au lithium-ion dotee d'un boitier plastique impermeable

Publications (1)

Publication Number Publication Date
WO2005117162A1 true WO2005117162A1 (fr) 2005-12-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2004/000536 Ceased WO2005117162A1 (fr) 2004-05-26 2004-05-26 Batterie au lithium-ion dotee d'un boitier plastique impermeable

Country Status (1)

Country Link
WO (1) WO2005117162A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103633259A (zh) * 2012-08-20 2014-03-12 宁波康顺电子科技有限公司 一种pp塑料外壳锂离子电池
CN106252709A (zh) * 2015-06-03 2016-12-21 Sk新技术株式会社 一种锂二次电池及包含其的二次电池子模块
CN116885362A (zh) * 2023-09-06 2023-10-13 江苏海贝新能源科技有限公司 一种组合式锂离子蓄电池组壳体及锂离子蓄电池组件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2090112U (zh) * 1991-02-06 1991-12-04 云南师范大学科技教学服务中心 袋式极板铅酸蓄电池
DE4141863A1 (de) * 1990-12-21 1992-06-25 Renata Ag Gegen selbstentladung geschuetzte elektrochemische zelle
CN2388712Y (zh) * 1999-09-22 2000-07-19 北京大学 一种锂离子电池的封装外壳

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141863A1 (de) * 1990-12-21 1992-06-25 Renata Ag Gegen selbstentladung geschuetzte elektrochemische zelle
CN2090112U (zh) * 1991-02-06 1991-12-04 云南师范大学科技教学服务中心 袋式极板铅酸蓄电池
CN2388712Y (zh) * 1999-09-22 2000-07-19 北京大学 一种锂离子电池的封装外壳

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103633259A (zh) * 2012-08-20 2014-03-12 宁波康顺电子科技有限公司 一种pp塑料外壳锂离子电池
CN106252709A (zh) * 2015-06-03 2016-12-21 Sk新技术株式会社 一种锂二次电池及包含其的二次电池子模块
US11728530B2 (en) 2015-06-03 2023-08-15 Sk On Co., Ltd. Lithium secondary battery and secondary battery sub module comprising the same
CN116885362A (zh) * 2023-09-06 2023-10-13 江苏海贝新能源科技有限公司 一种组合式锂离子蓄电池组壳体及锂离子蓄电池组件
CN116885362B (zh) * 2023-09-06 2023-11-10 江苏海贝新能源科技有限公司 一种组合式锂离子蓄电池组壳体及锂离子蓄电池组件

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