EP2981995A1 - Batterie rechargeable - Google Patents

Batterie rechargeable

Info

Publication number
EP2981995A1
EP2981995A1 EP14711958.0A EP14711958A EP2981995A1 EP 2981995 A1 EP2981995 A1 EP 2981995A1 EP 14711958 A EP14711958 A EP 14711958A EP 2981995 A1 EP2981995 A1 EP 2981995A1
Authority
EP
European Patent Office
Prior art keywords
battery
frame
transverse belt
frame element
transverse
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.)
Withdrawn
Application number
EP14711958.0A
Other languages
German (de)
English (en)
Inventor
Markus Kores
Harald Stuetz
Oliver UREM
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.)
AVL List GmbH
Original Assignee
AVL List GmbH
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 AVL List GmbH filed Critical AVL List GmbH
Publication of EP2981995A1 publication Critical patent/EP2981995A1/fr
Withdrawn legal-status Critical Current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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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 invention relates to a rechargeable battery having at least one, preferably with a plurality of battery cells, which are arranged in frame elements, wherein the frame elements comprise a base body made of foamed material, and the frame elements each comprise a first transverse belt, a second transverse belt opposite the first transverse belt and two Having opposite longitudinal straps.
  • Rechargeable batteries so-called accumulators are found in all areas of technology. In the automotive industry, such accumulators are used for alternative drive systems, with high demands being placed on performance, reliability and maintenance of the battery cells used in this area. In particular, the size and weight of such batteries are a major factor in their efficiency in automotive operation.
  • the rechargeable batteries used in this case usually consist of a large number of battery cells, which are combined in cell stacks, in so-called modules, and connected to one another.
  • Such cells are sensitive to mechanical stress and vibrations, in particular when so-called pouch cells are used, so that in the prior art such cells are fixed in usually rigid cell frames and these frames are lined up in cell stacks.
  • changes in thickness occur during a charge / discharge cycle that must be balanced within the cell stack. Likewise, if necessary, manufacturing tolerances must be compensated.
  • the arrangement of battery cells in a cell frame can be found, for example, in WO 2011/057815 A1 or DE 10 2010 051 010 AI. These solutions can only be used to a limited extent for so-called Poch cells because they can only insufficiently counteract mechanical loads that can occur in motor vehicles or the changes in thickness during operation.
  • US 2007/259258 A1 describes a battery cell which is arranged in a foamed frame element. A similar arrangement can also be found in JP 2001/273887 A. These arrangements are especially for pouch cells only partially or not applicable. It is therefore an object of the invention to provide a rechargeable battery of the type mentioned above, which eliminates the disadvantages of the prior art and has an improved mechanical load capacity, and is simple, space-saving and inexpensive to manufacture.
  • first transverse belt of a first frame member is arranged on a second transverse belt of an adjacent second frame member substantially form-fitting manner.
  • the main body of the respective frame elements is made of a foam and may optionally have additional, also made of a different material internals such as fasteners, cooling channels and the like. Due to their material, these frame elements are particularly suitable for absorbing mechanical loads, while at the same time they act in an electrically insulating manner between the individual battery cells. Another advantage is the cost-effective production and their low weight.
  • the frame elements in each case have a first transverse belt, a second transverse belt opposite the first transverse belt, and two longitudinal belts opposite one another, wherein the first transverse belt of a first frame element can be arranged substantially in a form-fitting manner on a second transverse belt of an adjacent second frame element.
  • the cross sections of the transverse straps are selected such that, when the frame elements are arranged side by side, the transverse straps rest against each other in a space-saving manner.
  • the battery cells are inserted, wherein the two electrical contacts of the respective battery cell are arranged either on a transverse belt together, or abut the contacts on opposite cross straps.
  • the first transverse belt has a substantially trapezoidal cross section and the second transverse belt has a substantially triangular cross section, while the two longitudinal belts preferably have a rectangular or square cross section.
  • the frame may also have only triangular or exclusively trapezoidal transverse straps.
  • a single transverse belt has a triangular section as well as a substantially trapezoidal cross section.
  • first transverse belt of the first Frame member is disposed in direct proximity to the second transverse belt of the second frame member, wherein the two transverse straps are at least partially separated from each other by the usually planar electrical contact of a battery cell.
  • first transverse belt with a trapezoidal cross section abuts against at least a first surface of an electrode contact of the battery cell
  • second transverse belt with a triangular cross section of the second frame element is arranged on the surface of a second electrode contact of a second battery cell.
  • the frame element has an insulating layer. It can be designed as a thermal and / or electrical insulation layer, and optionally self-adhesive on one or both sides.
  • the insulating layer is particularly preferably formed as an insulating film, which was miteing foamed in a further variant of the invention during the manufacture of the frame element and, for example, has recesses on the edge as anchoring structure, whereby the layer is embedded in the foam form-fitting manner. Suitable materials are here z. As ceramic composites, polyamide, polyimide, polyethylene or fiber reinforced plastics.
  • At least one degassing opening is provided between two adjacent frame elements.
  • This degassing opening is formed for example as a recess between the individual frame elements and allows the escape of excess pressure from the battery cell when, for example, the outer skin is cracked. This prevents damage to adjacent intact battery cells and / or frame elements, and the outflowing gas can preferably be discharged in a directional manner.
  • those frame elements have proven to be made of an elastic or non-elastic foam, wherein the foam is selected from a group consisting of polyurethane foams, silicone foams, integral foams, epoxy foams and RIM ( Reaction Injection Molding) contains foams.
  • the foam material is mixed with self-extinguishing and / or fire-retardant additives.
  • the invention is furthermore achieved by a method for producing a frame element, in particular for a rechargeable battery according to the invention, in that the frame element is shaped-foamed.
  • the usually liquid, reactive starting materials are introduced into a foaming mold and optionally reacted under pressure and / or temperature.
  • discontinuous processes such as the RSG (reaction foam casting) and the RIM (Reaction Injection Molding) method are used.
  • Figure 1 is a schematic representation of the battery according to the invention in a perspective view.
  • FIG. 2 shows a battery cell in a frame element in a view from the front.
  • FIG. 3 shows an alternative battery cell in a frame element in a view from the front
  • FIG. 4 shows the battery according to the invention from FIG. 3 in a sectional view
  • Fig. 5 shows the battery of FIGS. 1 and 2 in a schematic side view
  • Fig. 6 is a schematic side view of frames having only triangular or trapezoidal transverse straps each;
  • Fig. 7 is a schematic side view of frames having both a triangular and a trapezoidal cross section on the same cross belt.
  • 1 shows a battery 100 according to the invention in the form of a cell stack, wherein the individual battery cells 110 are arranged with their electrode contacts 111 in frame elements 120.
  • the cell stack of the battery 100 according to the invention is arranged between two end plates 130 which, in a manner known per se, fix the individual battery cells 110 with their associated frame elements 120 in their position relative to one another.
  • the frame element 120 is in this case made of foam, which is inexpensively manufactured in a mold, which allows easy production of the different cross sections of the cross straps 121, 122 and longitudinal straps 123.
  • the frame member 120 may be made in one piece with a base body made of foamed material, or the individual transverse straps 121, 122 and longitudinal straps 123 are manufactured individually and then assembled and connected to the frame member 120.
  • a battery cell 110 is shown in a front view, with its two electrode contacts 111 being arranged on a first transverse belt 121 of the frame element 120.
  • fasteners 124 are foamed, which serve the arrangement of the individual battery cells 110 to a cell stack of the battery 100 and are made for example of metal or plastic.
  • the transverse belt 122 also has threaded inserts 125 in its end regions, which likewise serve to arrange individual battery cells 110 relative to one another.
  • FIG. 3 shows an alternative embodiment of the battery cell, in which the first contact 11a is arranged in the region of the first transverse belt 121, while the second electrode contact 111b bears against the second transverse belt 122 of the frame element 120.
  • a cooling channel 126 is arranged for the passage of a cooling medium.
  • an insulating layer 140 is arranged, which is particularly preferably formed as a film or thin plate and the thermal and / or electrical insulation of two adjacent battery cells 110, 110 'to each other.
  • the insulating layer 140 is shown by a dotted line ( Figures 2 and 3) and has recesses 141 at the edges to form a positive connection with the cured foam.
  • the first transverse belt 121, 121 'of the frame member 120, 120' has a trapezoidal cross section while being second transverse belt 122, 122 'has a triangular cross-section.
  • the FIG. 4 to remove the cooling channels 126 in the transverse straps 121, 121 ', 122, 122'.
  • the two longitudinal straps 123, 123 'each have a substantially rectangular cross-section in these embodiments of the invention.
  • a first battery cell 110 is arranged between two adjacent frame elements 120, 120 'in such a way that their electrode contacts 111 a, 111 b are interposed between the first trapezoidal transverse belt 121' of the first frame element 120 and the second transverse belt 122 'of the adjacent frame element 120'. is arranged. Due to the special shape of the transverse straps 121, 121 ', 122, 122' and their arrangement to each other, the electrode contacts li la, li la ', 111b, 111b' of two adjacent battery cells 110, 110 'are bent to each other, so that their Kontak- tion essential is relieved.
  • first transverse strap 121 has either a triangular or trapezoidal cross section (FIG. 6) or the first transverse strap 121 has sections with a trapezoidal and a triangular cross section (FIGS ).
  • the cross section of the second transverse belt 122 is substantially square or rectangular and does not protrude beyond the longitudinal straps 123.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne une batterie rechargeable (100) comprenant au moins un, de préférence une pluralité d'éléments accumulateurs (110, 110') disposés dans des éléments formant cadre (120, 120'). Les éléments formant cadre (120, 120') possèdent un corps de base en matériau expansé et ils comportent chacun une première membrure transversale (121, 121'), une deuxième membrure transversale (122, 122') à l'opposé de la première membrure transversale (121, 121') ainsi que deux membrures longitudinales (123, 123') à l'opposé l'une de l'autre. La première membrure transversale (121) d'un premier élément formant cadre (120) peut être disposée sensiblement par complémentarité de forme contre une deuxième membrure transversale (122') d'un deuxième élément formant cadre (120') adjacent. L'invention concerne en outre un procédé correspondant.
EP14711958.0A 2013-04-03 2014-03-19 Batterie rechargeable Withdrawn EP2981995A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50226/2013A AT514061B1 (de) 2013-04-03 2013-04-03 Wiederaufladbare Batterie
PCT/EP2014/055463 WO2014161719A1 (fr) 2013-04-03 2014-03-19 Batterie rechargeable

Publications (1)

Publication Number Publication Date
EP2981995A1 true EP2981995A1 (fr) 2016-02-10

Family

ID=50346003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14711958.0A Withdrawn EP2981995A1 (fr) 2013-04-03 2014-03-19 Batterie rechargeable

Country Status (4)

Country Link
EP (1) EP2981995A1 (fr)
KR (1) KR20150138198A (fr)
AT (1) AT514061B1 (fr)
WO (1) WO2014161719A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101943542B1 (ko) 2015-09-21 2019-01-29 주식회사 엘지화학 배터리 모듈 및 이를 포함하는 배터리 팩
ES3049763T3 (en) * 2021-05-20 2025-12-18 Lg Energy Solution Ltd Battery module with improved safety
KR20230134375A (ko) * 2022-03-14 2023-09-21 에스케이온 주식회사 배터리 셀 어셈블리 및 이를 포함하는 배터리 모듈
DE102022128797A1 (de) * 2022-10-31 2024-05-02 Bayerische Motoren Werke Aktiengesellschaft Befestigungsanker für eine Batterie, Verfahren zum Herstellen einer Batterie, Batterie und Kraftfahrzeug mit einer solchen Batterie

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001273887A (ja) * 2000-03-27 2001-10-05 Shin Kobe Electric Mach Co Ltd 密閉形鉛蓄電池
WO2006135008A1 (fr) * 2005-06-17 2006-12-21 Nec Lamilion Energy, Ltd. Ensemble de dispositifs électriques et dispositif électrique avec une pellicule de couverture extérieure
US20070259258A1 (en) * 2006-05-04 2007-11-08 Derrick Scott Buck Battery assembly with temperature control device
DE102009037726A1 (de) * 2009-08-17 2011-02-24 Li-Tec Battery Gmbh Galvanische Zelle mit Rahmen und Verfahren zu ihrer Herstellung
DE102010061865A1 (de) * 2010-11-24 2012-05-24 Behr Gmbh & Co. Kg Rahmen für eine elektrochemische Energiespeichereinheit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014161719A1 *

Also Published As

Publication number Publication date
AT514061B1 (de) 2014-10-15
KR20150138198A (ko) 2015-12-09
AT514061A4 (de) 2014-10-15
WO2014161719A1 (fr) 2014-10-09

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