EP2649667A1 - Élément de batterie - Google Patents

Élément de batterie

Info

Publication number
EP2649667A1
EP2649667A1 EP11771165.5A EP11771165A EP2649667A1 EP 2649667 A1 EP2649667 A1 EP 2649667A1 EP 11771165 A EP11771165 A EP 11771165A EP 2649667 A1 EP2649667 A1 EP 2649667A1
Authority
EP
European Patent Office
Prior art keywords
battery cell
cooling
housing
storage elements
kühlleitblechabschnitt
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Withdrawn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
EP11771165.5A
Other languages
German (de)
English (en)
Inventor
Stefan Pfeiffer
Kai Kuhlmann
Thomas Kretschmar
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2649667A1 publication Critical patent/EP2649667A1/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Withdrawn legal-status Critical Current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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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 is based on a battery cell according to the preamble of the independent claim.
  • a battery (or a battery system), such as in hybrid or
  • Electric vehicles usually consists of several battery modules, which in turn are composed of individual battery cells (for example, lithium-ion battery cells).
  • a single battery cell has a housing and electrical storage elements (also referred to as galvanic cells or simply cells) arranged in the housing.
  • electrical storage elements also referred to as galvanic cells or simply cells
  • the heat generated during the charging and discharging of the battery cell by current flow loss must be dissipated by cooling. Due to the sometimes high power density high demands are placed on the cooling.
  • a battery in which the heat dissipation from the battery by flat placement of the individual battery cell on a cooling plate, which is located outside the housing, is guaranteed.
  • the prerequisite for a good heat transfer between the battery cell and the cooling plate is a high flatness of the contact surfaces.
  • the heating of the Battery cell during loading and unloading an increase in pressure within the housing takes place. This pressure increase has a bulging of the housing walls result. Due to the curvature of the housing walls, the contact area between the battery cell and the cooling plate is reduced, which leads to a reduction of the cooling effect.
  • a further disadvantage is that the heat loss that occurs during loading and unloading within the electrical storage elements of the battery cell, must first reach the contact surface between the housing and the cooling plate by heat conduction to be finally discharged there.
  • the battery cell according to the invention with the characterizing portion of claim 1 has the advantage that the heat loss arising during charging and discharging is dissipated from the electrical storage elements of the battery cell in a highly efficient manner.
  • the invention provides that at least two storage elements and améleitblech are arranged in the housing. Since the heat loss during loading and unloading arises directly in the electrical storage elements of the battery cell, it is advantageous, the cooling baffle together with the
  • the housing of the battery cell can be advantageously reduced in wall thickness, since the heat dissipation does not take place via the housing. A weight reduction and associated cost reduction is the result.
  • the at least two electrical storage elements are in contact with the cooling baffle.
  • the contact ensures the heat transfer and is either a direct contact in which the storage elements and the cooling baffle directly touch or a contact in which it also for
  • Heat transfer occurs when there is a heat transfer medium such as a thermal paste or a protective film or protective layer or the like between the storage elements and thedeleitblech. Due to this contact, efficient heat transfer takes place between the cooling guide plate and the two electrical storage elements, as a result of which the heat can be conducted in a highly efficient manner from the electrical storage elements.
  • a heat transfer medium such as a thermal paste or a protective film or protective layer or the like
  • the cooling guide plate is arranged in a firstdeleitblechabêt between the at least two electrical storage elements.
  • both the heat of the one and of the other storage element can be dissipated via the cooling guide plate.
  • Battery cell which is connected to a bulging of the housing walls, has no influence on the heat transfer.
  • the housing has an opening which is penetrated by a cooling guide plate with a seconddeleitblechabêt and by a
  • the potting compound causes a fixation of theharide and the at least two electrical storage elements in
  • Forming serves the better hold in the potting compound.
  • the effect of the deformation is that the penetration of moisture into the battery cell is made even more difficult and there is better moisture-proofing.
  • thedeleitbleich is set in a located outside of the housing thirddeleitblechabites on a traversed by a cooling fluid heat sink.
  • the thirddeleitblechabites which protrudes from the potting compound, is in contact with the flowed through by a cooling fluid heat sink and transmits to this the heat dissipated from the battery cell.
  • the heat is advantageously removed from the heat sink via the cooling fluid flowing through the heat sink.
  • thedeleitbleich in the thirddeleitblechabites at least one opening.
  • the opening is suitable for the battery cell with the help ofméleitblechs on a suitable device, such as a heat sink, within a battery module, which consists of several
  • Battery cells composed to specify can be spatially fixed relative to other similar battery cells within a battery module.
  • fixing the battery cell to a suitable battery cell By fixing the battery cell to a suitable battery cell
  • Device can be additionally transferred heat from the battery cell to the device, whereby a cooling effect of the battery cell occurs.
  • the at least one opening of thedeleitblechs is penetrated by the heat sink.
  • the battery cell is thus fixed with the help of theisserleitblechs on the heat sink and can therefore relative to others Battery cells are arranged within a battery module.
  • the fixation of the battery cell is ensured, but also the heat transfer between the cooling baffle and the cooling baffle
  • this cooling concept allows a quick change of defective battery cells, as they can be pulled onto the heat sink like beads on a chain and, accordingly, can be quickly removed from it.
  • the at least one opening is designed as a sleeve open on both sides.
  • this form of the opening there is a larger contact area between the cooling guide plate and the heat sink, which is why the heat transfer between the cooling guide plate and the heat sink is improved.
  • the battery cell is performed by the sleeve open on both sides as an opening stabilized against tilting when the heat sink passes through the opening and theméleitblech thus on
  • Heat sink is set.
  • Battery cell exactly one cooling baffle arranged in the housing. Thereby, a weight reduction and a reduction of the manufacturing cost is achieved.
  • FIG. 1 shows a perspective sectional view of a battery cell.
  • FIG. 2 shows a perspective sectional illustration of a plurality of battery cells arranged one behind the other.
  • FIG. 1 shows an embodiment of the invention, a battery cell 11 in a perspective sectional view.
  • the battery cell 11 is substantially rectangular and flat and has a small thickness.
  • the battery cell 11 has two flag-like from its housing 12 at the head side
  • the firstdeleitblechabites 16 in direct contact with theisserleitblech 15.
  • the firstdeleitblechabites 16 is in this case the entire area within which thedeleitblech 15 between the storage elements 13, 14 is arranged.
  • Memory elements 13, 14 can be embodied in particular as lithium-ion memory cells in a flat design without an inherently rigid shell ("jelly rolls” or “coffee bag”).
  • Thedeleitblech 15 and the electrical storage elements 13, 14 are located in the housing 12 of the battery cell 11.
  • the housing 12 has on one side an opening 27 which is penetrated by thedeleitblech 15.
  • the cooling baffle 15 has in a housing 12 located in the second
  • FIG. 2 shows, as a further exemplary embodiment of the invention, a perspective sectional view of a plurality of battery cells 11, 11_1 and 11_2 from FIG. 1.
  • the cooling guide plate 15 has a
  • the heat sink 24 may be formed as a cooling tube or cooling tube system.
  • the heat sink 24 has two connection points 28 and 29 (the latter not shown here) for supplying and discharging a cooling fluid.
  • connection points 28 and 29 is the connection points 28 and 29.
  • Heat sink 24 can be connected to a coolant circuit, not shown, via which the heat absorbed by the cooling fluid waste heat from the battery cell can be discharged.
  • the heat sink 24 allows the arrangement of the battery cells, which are parallel to one another and arranged one behind the other, which can be interconnected in parallel or / and in series, depending on the application.
  • connection of the cooling guide plate 15 with the heat sink 24, the battery cells 11 are fixed relative to each other spatially and are quickly interchangeable in the event of a defect.

Landscapes

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

Abstract

L'invention concerne un élément de batterie, en particulier un élément de batterie lithium-ion, qui comprend un boîtier (12), au moins deux éléments accumulateurs électriques (13, 14), ainsi qu'une tôle conductrice de refroidissement (15). Selon l'invention, les au moins deux éléments accumulateurs (13, 14) et la tôle conductrice de refroidissement (15) sont placés dans le boîtier (12).
EP11771165.5A 2010-12-10 2011-10-20 Élément de batterie Withdrawn EP2649667A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010062858.1A DE102010062858B4 (de) 2010-12-10 2010-12-10 Batteriezelle
PCT/EP2011/068335 WO2012076233A1 (fr) 2010-12-10 2011-10-20 Élément de batterie

Publications (1)

Publication Number Publication Date
EP2649667A1 true EP2649667A1 (fr) 2013-10-16

Family

ID=45093693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11771165.5A Withdrawn EP2649667A1 (fr) 2010-12-10 2011-10-20 Élément de batterie

Country Status (5)

Country Link
US (1) US9742044B2 (fr)
EP (1) EP2649667A1 (fr)
JP (1) JP5710019B2 (fr)
DE (1) DE102010062858B4 (fr)
WO (1) WO2012076233A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014179194A (ja) * 2013-03-14 2014-09-25 Toyota Motor Corp 温度調節装置及びそれを備えたバッテリ
DE102015118747A1 (de) * 2015-11-02 2017-05-04 Valeo Klimasysteme Gmbh Kühlmodul für eine Batterie, Batterie für ein Fahrzeug und Verfahren zur Herstellung eines Kühlmoduls
DE102018218865A1 (de) 2018-11-06 2020-05-07 Robert Bosch Gmbh Gehäuse für eine Batteriezelle, Batteriezelle und Verfahren zum Herstellen derselben

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184041A (ja) 1975-01-20 1976-07-23 Yuasa Battery Co Ltd Denchigunnoondoseigyohoho
JPH03109269A (ja) 1989-09-22 1991-05-09 Ube Ind Ltd 炭素繊維強化サイアロン基セラミックス複合材料
JPH03109269U (fr) * 1990-02-22 1991-11-11
JP4553100B2 (ja) * 2003-08-01 2010-09-29 日本電気株式会社 扁平型二次電池および組電池
JP4890795B2 (ja) 2005-06-16 2012-03-07 日本電気株式会社 フィルム外装電池及びそれが集合した組電池
KR100709261B1 (ko) * 2005-11-15 2007-04-19 삼성에스디아이 주식회사 이차 전지 모듈
KR100740126B1 (ko) * 2006-02-02 2007-07-16 삼성에스디아이 주식회사 이차 전지 모듈용 격벽 및 이를 포함하는 이차 전지 모듈
JP4923679B2 (ja) 2006-03-31 2012-04-25 トヨタ自動車株式会社 積層型電池
JP5061502B2 (ja) 2006-05-20 2012-10-31 日産自動車株式会社 電池構造体
JP5181800B2 (ja) 2008-04-21 2013-04-10 トヨタ自動車株式会社 電池、組電池、車両及び電池搭載機器
DE102008059952B4 (de) 2008-12-02 2011-07-07 Daimler AG, 70327 Batterie mit mehreren parallel und/oder seriell miteinander elektrisch verschalteten Batteriezellen und einer Kühlvorrichtung und Verwendung einer Batterie
DE102008061277A1 (de) 2008-12-10 2010-06-24 Conti Temic Microelectronic Gmbh Energiespeicher
KR101095346B1 (ko) * 2008-12-12 2011-12-16 주식회사 엘지화학 우수한 방열 특성의 전지모듈 및 중대형 전지팩
DE102009005854A1 (de) 2009-01-23 2010-07-29 Li-Tec Battery Gmbh Batteriezelle mit Umhüllung
US9196938B2 (en) * 2010-07-06 2015-11-24 Samsung Sdi Co., Ltd. Battery module

Also Published As

Publication number Publication date
DE102010062858A1 (de) 2012-06-14
JP5710019B2 (ja) 2015-04-30
JP2013545250A (ja) 2013-12-19
DE102010062858B4 (de) 2023-06-01
WO2012076233A1 (fr) 2012-06-14
US9742044B2 (en) 2017-08-22
US20130316216A1 (en) 2013-11-28

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