WO2009080158A1 - Batterie destinée, en particulier, à être utilisée dans un véhicule - Google Patents

Batterie destinée, en particulier, à être utilisée dans un véhicule Download PDF

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Publication number
WO2009080158A1
WO2009080158A1 PCT/EP2008/009645 EP2008009645W WO2009080158A1 WO 2009080158 A1 WO2009080158 A1 WO 2009080158A1 EP 2008009645 W EP2008009645 W EP 2008009645W WO 2009080158 A1 WO2009080158 A1 WO 2009080158A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
internal pressure
housing
leaf spring
battery according
Prior art date
Application number
PCT/EP2008/009645
Other languages
German (de)
English (en)
Inventor
Jens Meintschel
Dirk Schröter
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2009080158A1 publication Critical patent/WO2009080158A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • 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
    • H01M10/61—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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/643—Cylindrical cells
    • 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member

Definitions

  • the invention relates to a battery, in particular for use in a vehicle, wherein the battery is arranged in a battery housing, to which a device for reducing an internal pressure is arranged, which closes automatically after a reduction in the internal pressure.
  • an electrochemical energy storage cell in particular an accumulator or a double-layer capacitor is known, wherein through the energy storage cell through an open at its two ends core tube is supplied.
  • Conductors can be arranged inside the core tube and gaseous decomposition products emerging from the energy storage cell can be removed via the core tube.
  • cooling of the energy storage cell can take place through the core tube.
  • pressure relief valve can dissipate an overpressure from a closed interior in the core tube. The pressure relief valve can be designed so that it automatically closes after the removal of the overpressure.
  • the electrochemical energy storage cell comprises a section in which the electrochemical cell reaction takes place, a positive pole and a housing, which simultaneously can be formed as a negative pole of the electrochemical energy storage cell.
  • a device detects a gas pressure and a reaction heat. Upon detection of the abnormal reaction, the device permanently interrupts current flow.
  • the electrochemical energy storage cell further comprises an opening, by means of which a gas exchange of
  • Energy storage cell is executable with an environment. After the gas exchange, the opening can be closed by means of a valve.
  • the invention has for its object to provide an improved electrochemical energy storage cell, in particular a battery for use in a vehicle, which is simple and inexpensive to produce.
  • the battery according to the invention which is intended in particular for use in a vehicle, is arranged in a battery housing, on which a device for reducing an internal pressure is arranged, which closes automatically after a reduction in the internal pressure, wherein the device for reducing the internal pressure designed as a leaf spring loaded valve.
  • a device for reducing an internal pressure designed as a leaf spring loaded valve.
  • the leaf spring-loaded valve is formed from a arranged in a housing on a seal leaf spring, wherein the housing is designed to protect the leaf spring with a protective border. Furthermore, the housing is designed to receive the seal with a corresponding recess to the seal. This construction is simple and inexpensive to implement and the design of the housing provides comprehensive protection of the leaf spring from damage.
  • the leaf spring exerts a pressure on the seal, so that in a normal operation of the battery, penetration of particles and moisture is prevented. Thus, further formation of condensation and a resulting corrosion of metallic components and short circuits of single cells of the battery are avoided.
  • the leaf spring Upon reaching a threshold value of the internal pressure, the leaf spring opens, whereby the internal pressure is reduced and an explosive destruction of the battery and thus damage to an environment of the battery can be avoided. After the internal pressure is released, the leaf spring closes automatically, preventing leakage of an electrolyte liquid of the single cells from the battery case, resulting in an increase in safety for persons and protection of the environment of the battery. Furthermore, a risk of fire of an organic electrolyte liquid is reduced, since an ingress of atmospheric oxygen in the Battery housing is avoided by the automatic closing of the leaf spring.
  • the battery may be formed such that a housing middle part of the battery case is designed as a device for reducing the internal pressure.
  • the housing middle part when reaching a threshold value of the internal pressure of the battery housing, the housing middle part is deformable such that one or more openings for reducing the internal pressure can be generated at at least one connection point with further housing parts.
  • the middle part of the housing assumes its initial shape and the openings are closed.
  • the housing is made of a material which is elastically deformable. This construction leads to the same advantages as the use of the leaf spring-loaded valve and is also easy and inexpensive to implement.
  • the battery can be produced from individual cells, the individual cells having a device for reducing an internal cell pressure, in particular in the form of a rupture disk, and being able to be cooled by means of a cooling device.
  • a heat generated by the individual cells which can lead to a temperature that is shorter over the life of the battery, can be dissipated.
  • the device for the pressure reduction an explosive destruction of the individual cells of the battery is avoided.
  • Showing: 1 shows schematically a closed battery housing with a leaf spring-loaded valve arranged thereon,
  • Fig. 2 shows schematically an exploded view of
  • FIG. 3 schematically shows a leaf spring-loaded valve in a closed position
  • FIG. 4 is a schematic sectional view of a leaf spring-loaded valve in a closed position according to FIG. 3,
  • FIG. 6 is a schematic sectional view of a leaf spring-loaded valve in an open position according to FIG. 5, FIG.
  • Fig. 7 shows schematically an exploded view of a leaf spring-loaded valve
  • Fig. 8 shows schematically a battery housing with openings for a reduction of an internal pressure.
  • FIG. 1 illustrates a closed battery case 1, which consists of a middle part 3 and two Housing side parts 4 is constructed.
  • a leaf spring-loaded valve 2 On the battery case 1, a leaf spring-loaded valve 2 is arranged.
  • a leaf spring 5 exerts a pressure on a seal 6 shown in greater detail in FIG.
  • the leaf spring 5 is made of an elastic material, which automatically assumes its original shape after deformation by means of a force effect.
  • the leaf spring 5 is fixed by means of rivets 7 to a housing 8, which is designed to protect the leaf spring 5 with a protective border.
  • the pressure built up in the individual cells 9 is conducted into the battery housing 1. If an internal pressure which exceeds a threshold value arises in the battery housing 1, the leaf spring 5 according to FIGS. 5 and 6 opens and the internal pressure of the battery housing 1 is reduced. As a result, an explosion-like destruction of the battery case 1 is avoided which may result in damage to an environment of the battery and / or of persons.
  • the leaf spring 5 closes again, d. H. it exerts a pressure on the seal 6 and the housing is closed. Thus, no electrolyte liquid can escape from the battery case 1. Since an organic electrolyte liquid is combustible in conjunction with oxygen, an entry of atmospheric oxygen into the battery housing 1 is prevented in an advantageous manner by means of the invention and thus reduces the risk of fire.
  • FIG. 2 shows an exploded view of the battery housing 1 according to FIG. 1.
  • individual cells 9 are arranged on a cooling plate 10.
  • the individual cells 9 are heavily loaded for use in motor vehicles, in particular in electrically powered motor vehicles. This load results from very high charging and discharging power, which are associated with high internal losses, especially heat losses. The heat generated during charging and discharging can lead to a temperature shortening above the battery life and must therefore be dissipated via a surface of the individual cells 9, for example via the cooling plate 10 in addition to a discharge.
  • FIG. 3 illustrates the leaf spring-loaded valve 2 in a closed position.
  • the leaf spring 5 is fastened with rivets 7 in the housing 8 and exerts a pressure on the seal 6, whereby the particles and gases and liquids enter and exit the battery housing 1 and from the battery case 1 is avoided.
  • FIG. 4 shows a sectional view of the leaf-spring-loaded valve 2 in the closed position according to FIG. 3.
  • Both the leaf spring 5 and the housing 6 are provided with bores 11, 12 which are used to attach the leaf spring 5 to the housing 8 by means of the rivets 7 are provided.
  • FIG. 5 shows the leaf-spring-loaded valve 2 in an open position.
  • the leaf spring 5 opens as shown and the internal pressure is reduced.
  • FIG. 6 shows a sectional illustration of the leaf-spring-loaded valve 2 in an open position according to FIG. 5.
  • FIG. 7 shows an exploded view of the leaf-spring-loaded valve 2.
  • the housing 8 is provided with an arrangement of the seal 6 with a recess 13 corresponding to the seal 6. Furthermore, 8 holes 11, 12 are arranged both in the leaf spring 5 and in the housing, which serve to secure the leaf spring 5 to the housing 8 by means of the rivets 7. Further, the housing 8 is designed so that a protective border protects the leaf spring 5, for example, during transport or installation of the battery.
  • FIG. 8 illustrates an embodiment of the invention in which the middle part 3 of the battery housing 1 forms openings 14 for reducing the internal pressure.
  • the housing middle part 3 of the deformed Battery housing 1 Upon reaching a certain threshold value of the internal pressure of the battery case 1, the housing middle part 3 of the deformed Battery housing 1 such that arise at connection points with the housing side parts 4 openings 14 through which the internal pressure of the battery case 1 is reduced.
  • the housing middle part 3 assumes its initial shape and the battery housing 1 is closed in such a way that particles and gases and liquids are prevented from entering and exiting the battery housing 1.
  • the middle part 3 is made of an elastic material, which automatically assumes its original shape after deformation by means of a force effect.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

L'invention concerne une batterie destinée, en particulier, à être utilisée dans un véhicule, ladite batterie étant placée dans un coffret (1) sur lequel est placé un dispositif destiné à réduire une pression interne, lequel dispositif se ferme automatiquement après une réduction de la pression interne. Selon l'invention, le dispositif de réduction de la pression interne est réalisé sous la forme d'un clapet (2) commandé par ressort à lame.
PCT/EP2008/009645 2007-12-20 2008-11-14 Batterie destinée, en particulier, à être utilisée dans un véhicule WO2009080158A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007063191.1 2007-12-20
DE200710063191 DE102007063191A1 (de) 2007-12-20 2007-12-20 Batterie, insbesondere zu einer Anwendung in einem Fahrzeug

Publications (1)

Publication Number Publication Date
WO2009080158A1 true WO2009080158A1 (fr) 2009-07-02

Family

ID=40409734

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/009645 WO2009080158A1 (fr) 2007-12-20 2008-11-14 Batterie destinée, en particulier, à être utilisée dans un véhicule

Country Status (2)

Country Link
DE (1) DE102007063191A1 (fr)
WO (1) WO2009080158A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9398710B2 (en) 2014-08-07 2016-07-19 Continental Automotive Gmbh Enclosure for an electronic control unit and electronic control unit
GB2543862A (en) * 2015-10-30 2017-05-03 Tata Motors European Technical Ct Plc Vent assembly

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009040147A1 (de) * 2009-09-04 2011-03-10 Li-Tec Battery Gmbh Elektrochemischer Energiespeicher für Fahrzeuge und Verfahren zum Kühlen oder Erwärmen eines solchen elektrochemischen Energiespeichers
DE102010015674A1 (de) * 2010-04-21 2011-10-27 Wabco Gmbh Ein Gehäuse mit einem Verformungsbereich zum Druckausgleich sowie eine Anordnung eines Dichtungselements in dem Gehäuse
JP5919777B2 (ja) * 2011-01-31 2016-05-18 株式会社Ｇｓユアサ 蓄電素子
JP5625959B2 (ja) 2011-01-31 2014-11-19 株式会社Ｇｓユアサ 電池
DE102011109310A1 (de) 2011-08-02 2013-02-07 Daimler Ag Vorrichtung zur Verringerung des Innendrucks in einem Batteriegehäuse
DE102011109243B4 (de) 2011-08-02 2022-08-25 Hugo Benzing Gmbh & Co. Kg Batterie, insbesondere zu einer Anwendung in einem Fahrzeug
CA3044173C (fr) * 2012-06-13 2021-09-14 Allison Transmission, Inc. Reseau de cellules brochees destine a un systeme de stockage d'energie
DE102014006343A1 (de) 2014-04-30 2015-11-05 Daimler Ag Batteriegehäuse für eine Kraftfahrzeug-Batterie
DE102015005592A1 (de) 2015-05-02 2016-11-03 Daimler Ag Energiespeicher für einen Kraftwagen
DE102016115645B4 (de) 2016-08-23 2022-08-25 Kirchhoff Automotive Deutschland Gmbh Batteriegehäuse
DE102016016012B3 (de) 2016-08-23 2023-02-02 Kirchhoff Automotive Deutschland Gmbh Batteriegehäuse
JP7235485B2 (ja) * 2018-11-27 2023-03-08 株式会社エンビジョンＡｅｓｃジャパン 電池ケースおよびこれを備える車両並びに定置型蓄電装置
DE102021005541A1 (de) 2021-11-09 2021-12-23 Daimler Ag Überdruckventil für eine Batterie

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271241A (en) * 1980-02-05 1981-06-02 General Electric Company Resealable vent valve for containers such as batteries
EP0546220A1 (fr) * 1990-12-10 1993-06-16 Ovonic Battery Company Assemblage de couvercle rescellable et imperméable à l'hydrogène pour une cellule électrochimique à l'hydrogène
WO2000010210A1 (fr) * 1998-08-14 2000-02-24 Moltech Power Systems, Inc. Event de surete pour cellule electrochimique

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
US5523178A (en) 1992-12-14 1996-06-04 Nippondenso Co., Ltd. Chemical cell
DE102005041746A1 (de) 2005-09-02 2007-03-08 Bayerische Motoren Werke Ag Elektrochemische Energiespeicherzelle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271241A (en) * 1980-02-05 1981-06-02 General Electric Company Resealable vent valve for containers such as batteries
EP0546220A1 (fr) * 1990-12-10 1993-06-16 Ovonic Battery Company Assemblage de couvercle rescellable et imperméable à l'hydrogène pour une cellule électrochimique à l'hydrogène
WO2000010210A1 (fr) * 1998-08-14 2000-02-24 Moltech Power Systems, Inc. Event de surete pour cellule electrochimique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9398710B2 (en) 2014-08-07 2016-07-19 Continental Automotive Gmbh Enclosure for an electronic control unit and electronic control unit
GB2543862A (en) * 2015-10-30 2017-05-03 Tata Motors European Technical Ct Plc Vent assembly
GB2543862B (en) * 2015-10-30 2018-02-14 Tata Motors European Technical Ct Plc Vent assembly for a battery pack

Also Published As

Publication number Publication date
DE102007063191A1 (de) 2009-06-25

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