WO2014195048A1 - Soupape de sécurité pour protéger une cellule galvanique contre une surpression néfaste ainsi que couvercle de logement de cellule et cellule galvanique munie d'une soupape de sécurité - Google Patents

Soupape de sécurité pour protéger une cellule galvanique contre une surpression néfaste ainsi que couvercle de logement de cellule et cellule galvanique munie d'une soupape de sécurité Download PDF

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Publication number
WO2014195048A1
WO2014195048A1 PCT/EP2014/057400 EP2014057400W WO2014195048A1 WO 2014195048 A1 WO2014195048 A1 WO 2014195048A1 EP 2014057400 W EP2014057400 W EP 2014057400W WO 2014195048 A1 WO2014195048 A1 WO 2014195048A1
Authority
WO
WIPO (PCT)
Prior art keywords
safety valve
closure element
galvanic cell
cell
valve opening
Prior art date
Application number
PCT/EP2014/057400
Other languages
German (de)
English (en)
Inventor
Anselm Berg
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 WO2014195048A1 publication Critical patent/WO2014195048A1/fr

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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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/375—Vent means sensitive to or responsive to temperature
    • 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
    • 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 safety valve for protecting a galvanic cell against damaging overpressure comprising a closure element and a valve opening, wherein the closure element is firmly connected to the valve opening during normal operation of the galvanic cell and the closure element releases the valve opening to protect the galvanic cell from damaging overpressure.
  • Galvanic cells in the sense of the present invention are in particular battery cells, accumulator cells and fuel cells.
  • the invention relates to a cell housing cover for a cell housing, which protects a galvanic cell from external influences, wherein the cell housing cover comprises a safety valve for protecting the galvanic cell from damaging overpressure.
  • the invention relates to a galvanic cell with a safety valve to protect the galvanic cell from damaging overpressure.
  • Input safety valves are known in the art.
  • the publication DE 103 28 862 B4 discloses a lithium battery, which has a safety valve, in which a bursting membrane is firmly connected as a closure element in normal operation with the valve opening.
  • a safety valve in which a bursting membrane is firmly connected as a closure element in normal operation with the valve opening.
  • heating of the lithium ions may take place Cell come. This heating of the cell may result in at least a portion of the electrolyte of the cell becoming gaseous. Gas formation within a galvanic cell leads to an overpressure inside the galvanic cell.
  • a safety valve such as a bursting membrane used as a closure element in a valve opening
  • the safety valve opens at a certain pressure within the galvanic cell, for example by a bursting of a bursting membrane inserted into the valve opening, and thus releases the valve opening to protect the galvanic cell from damaging overpressure.
  • the required internal cell pressure, at which the closure element releases the valve opening by bursting is usually between six bar and ten bar. Gas formed in a galvanic cell can be dissipated by the valve opening released by the closure element to protect the galvanic cell from damaging overpressure the pressure inside the galvanic cell decreases.
  • a disadvantage of such safety valves is that they trigger solely due to the exceeding of a certain pressure, that is release the valve opening to protect the galvanic cell from damaging overpressure.
  • the increase in intracellular pressure caused by gas evolution in the galvanic cell, which ultimately triggers the safety valve, is difficult to predict.
  • One reason for the poor predictability of the pressure at which a closure element occluding the valve opening of the safety valve releases the valve opening is that the internal pressure of a galvanic cell having such a safety valve, due to the chemical reactions taking place in the galvanic cell Lifetime of the galvanic cell changes.
  • a safety valve for protecting a galvanic cell from damaging overpressure comprising a closure element and a valve opening
  • the closure element is firmly connected to the valve opening during normal operation of the galvanic cell and the closure element to protect the galvanic cell from damaging overpressure the valve opening releases
  • the safety valve is designed such that upon reaching a reaction temperature acting on the safety valve, the firm connection between the closure element and the valve opening dissolves.
  • Galvanic cells in the sense of the present invention are in particular battery cells, accumulator cells and fuel cells.
  • rechargeable lithium-ion cells are provided as galvanic cells in the context of the present invention.
  • a normal operation of a galvanic cell in the sense of the present invention is in particular a faultless state of a galvanic cell.
  • the temperature of the galvanic cell is in a normal operating temperature range, in particular below a temperature which can lead to gas evolution within the galvanic cell.
  • the temperature during normal operation of a galvanic cell is below the reaction temperature.
  • the reaction temperature is less than one degree Celsius, in particular about 5 ° C., below the temperature at which an electrolyte of a galvanic cell changes to a gaseous state.
  • the safety valve can be designed such that the reaction temperature is the temperature which corresponds to the temperature at which an electrolyte of a galvanic cell changes to a gaseous state.
  • the valve opening for protecting the galvanic cell from damaging overpressure can advantageously be released.
  • the fixed connection between the closure element and the valve opening solved can advantageously inside the gases formed in the galvanic cell escape from the galvanic cell through the valve opening. Since according to the invention the release of the fixed connection between the closure element and the valve opening is temperature-dependent and not, as usual in the prior art, pressure-dependent, the release of the valve opening by the closure element to protect the galvanic cell from damaging overpressure advantageously of which over the Lifetime of galvanic cell changing cell internal pressure independently. Moreover, advantageously, the conditions at which the safety valve triggers are more accurately predictable.
  • Another advantage of the present invention is that an earlier opening of the safety valve is made possible by the temperature dependence of the safety valve.
  • an increase in pressure within a galvanic cell due to evaporation of the electrolyte of the galvanic cell is always due to heating of the galvanic cell. That is, the pressure rise within a galvanic cell is a secondary effect due to heating of the galvanic cell.
  • the safety valve according to the invention triggers temperature-dependent, namely upon reaching or exceeding a certain temperature limit, the safety valve according to the invention can already open before a high internal cell pressure has built up by gas formation.
  • the risk of damage to the galvanic cell surrounding components can thus be advantageously avoided by the temperature-dependent release of the valve opening, since the cell internal pressure of the galvanic cell when opening the safety valve according to the invention may be lower and thus formed by the galvanic cell gas by using a safety valve according to the invention rather continuously escapes as explosive from the galvanic cell. Due to the temperature-dependent release of the valve opening of the safety valve according to the invention, moreover, the predictability of the triggering or Opening the safety valve in comparison to previously known pressure-dependent triggering safety valves much more precise.
  • the safety valve is designed such that upon reaching a reaction temperature acting on the safety valve of more than 80 ° C, preferably upon reaching a reaction temperature of 100 ° C, solves the solid connection between the closure element and the valve opening.
  • An exact vote of the safety valve to exactly observed temperature limits is advantageously not necessary to provide protection for a galvanic cell from damaging overpressure.
  • the safety valve is tuned to a reaction temperature which is greater than a normal operating temperature during normal operation of a galvanic cell, and which also does not exceed a temperature at which gas formation begins within a galvanic cell.
  • a reaction temperature in the order of about 100 ° C has proved to be particularly advantageous.
  • the closure element using a reaction material closes the valve opening during normal operation of the galvanic cell, wherein the reaction material changes its consistency upon reaching the reaction temperature acting on the safety valve, such that the fixed connection between the Closing element and the valve opening by the changed consistency of the reaction material dissolves.
  • a change in consistency may in particular be a change in the state of matter of the reaction material.
  • a change in consistency is in particular a change in the material property of the reaction material.
  • a swelling of the reaction material may be provided as a consistency change, wherein the swelling of the reaction material may cause the closure element is quasi pressed from the valve opening, so that dissolves the solid connection between the closure element and the valve opening by this consistency change of the reaction material.
  • the reaction material may in particular be an intumescent material.
  • the reaction material of the safety valve according to the invention is a plastic material.
  • the reaction material from reaching a fixed acting on the safety valve reaction temperature of a solid Physical state changes to a liquid state of aggregation. That is, the reaction material has a solid state at temperatures that exist during normal operation of a galvanic cell. If the temperature acting on the safety valve, in particular that acting on the reaction material, rises to or exceeds the reaction temperature, the reaction material melts and becomes liquid. This dissolves advantageously during normal operation of the galvanic cell fixed connection of the closure element with the valve opening, so that the valve opening can be released to protect the galvanic cell from damaging overpressure.
  • the safety valve comprises at least one holding element, which is at least partially made of the reaction material, wherein the closure element is firmly connected by means of the at least one holding element during normal operation of a galvanic cell with the valve opening.
  • the at least one retaining element is completely made of the reaction material.
  • the at least one holding element thus advantageously represents a quasi-fuse, which melts depending on the choice of the reaction material upon reaching or exceeding a predetermined temperature, and thus solves a firm connection between the closure element of the safety valve and the valve opening of the safety valve, so that pressure differences between the Cell interior of a galvanic cell and the outer of a galvanic cell can be compensated, and a galvanic cell is thus protected from damaging overpressure.
  • the closure element is formed substantially flat with a peripheral edge, wherein the at least one holding element surrounds the peripheral edge of the closure element.
  • the closure element is preferably introduced into the valve opening during normal operation of a galvanic cell with the holding element surrounding the closure element.
  • the fixed connection made by the holding element of the closure element is dissolved with the valve opening.
  • a gap is formed, through which gas formed by the galvanic cell can escape from the galvanic cell.
  • the closure element can be easily conveyed out of the valve opening by gas emerging from the galvanic cell, so that leakage, in particular of gas, from the galvanic cell is further improved.
  • a surrounding the peripheral edge of the closure element retaining element is a plastic ring, which preferably melts at a temperature of about 100 ° C. This plastic ring advantageously forms a fuse which enables the valve opening to be released upon reaching or when the melting temperature is exceeded, as a result of which a galvanic cell can be protected from damaging overpressure.
  • the closure element of the safety valve according to the invention is a rupture element, which ruptures at a certain pressure acting on the rupture element.
  • the bursting element may be a bursting membrane.
  • the design of the closure element as a bursting element advantageously a double fuse to prevent damage to a galvanic cell by a gas formation in the cell interior and provided with the formation of gas pressure increase is provided. Should the fixed connection between the closure element and the valve opening not open as intended as a result of reaching or exceeding a reaction temperature acting on the safety valve, then there is advantageously also a conventional protection by a bursting element, which bursts when a certain pressure is exceeded.
  • the bursting element has at least one predetermined breaking point, by means of which the bursting behavior of the bursting element is advantageously improved.
  • the bursting element is preferably used with a plastic ring as a holding element in the valve opening of the safety valve, wherein the plastic ring advantageously melts when reaching or exceeding the reaction temperature.
  • a further particularly preferred embodiment of the invention provides that the closure element is at least partially made of the reaction material.
  • the closure element is completely made of the reaction material.
  • the closure element is made of a plastic, which is inserted into the valve opening of the safety valve or otherwise connected to the valve opening. It is provided in particular that the closure element is designed such that it melts when reaching or exceeding the reaction temperature, so that the fixed connection between the closure element and the valve opening dissolves and the valve opening to protect the galvanic cell is released from damaging overpressure.
  • a cell housing cover for a cell housing which protects a galvanic cell from external influences, in particular from moisture
  • the cell housing cover comprises a safety valve for protecting the galvanic cell against damaging overpressure, the safety valve engaging inventive safety valve is.
  • the cell housing cover is designed to close a prismatic cell housing.
  • the valve opening of the safety valve is advantageously introduced directly into the cell housing cover in this embodiment.
  • a galvanic cell with a safety valve to protect the galvanic cell from damaging Overpressure wherein the safety valve is a safety valve according to the invention.
  • the safety valve can be designed in particular in any combination of the aforementioned embodiments of a safety valve according to the invention.
  • Such a galvanic cell with a safety valve according to the invention is advantageously safer operable.
  • the risk of damage to the components surrounding the galvanic cell of a battery system in the case of degassing of the galvanic cell is reduced.
  • the tripping behavior of the safety valve of a galvanic cell according to the invention is independent of the aging of the galvanic cell and in particular of chemical reactions taking place in the galvanic cell, which have an effect on the internal cell pressure of the galvanic cell.
  • Figure 1 is a schematic representation of a plan view of an embodiment of a galvanic cell according to the invention with a safety valve according to the invention.
  • FIG. 2 shows a schematic representation of a plan view of a further exemplary embodiment of a galvanic cell according to the invention with a safety valve according to the invention
  • FIG. 3 shows a schematic representation of a perspective view of a further exemplary embodiment of a galvanic cell according to the invention with a safety valve according to the invention.
  • Fig. 1 designed as a prismatic lithium-ion cell galvanic cell 2 is shown with a safety valve 1 to protect the galvanic cell 2 from damaging overpressure.
  • the galvanic cell 2 has a cell housing, which is closed by a cell lid 6.
  • the cell housing and the cell cover 6 are made of aluminum and protect the galvanic cell 2 from damaging external influences, in particular against the ingress of moisture.
  • the galvanic cell 2 has two cell terminals 7. These are each electrically conductive with one electrode of the galvanic cell connected.
  • the galvanic cell 2 has a safety valve 1.
  • the cell housing cover 6 has a valve opening.
  • a closure element 3 is arranged, such that the closure element 3 closes the valve opening during normal operation of the galvanic cell 2.
  • the closure element 3 releases the valve opening.
  • the closure element 3 is in the embodiment shown in Fig. 1 of a reaction material, in this case a plastic material which has a melting point of about 100 ° C, for example a melting point of 98 ° C.
  • the closure element 3 is arranged on the boundary 5 of the valve opening, so that the closure element 3 is firmly connected to the valve opening during normal operation of the galvanic cell 2. Since the closure element 3 melts at a temperature of about 100 ° C, the safety valve 1 is designed such that upon reaching or exceeding a force acting on the safety valve reaction temperature, which is about 100 ° C or above 100 ° C, the solid compound between the closure element 3 and the valve opening of the safety valve 1 triggers.
  • Achieving or exceeding the reaction temperature acting on the safety valve 1 may in particular be the result of an internal short circuit in the galvanic cell 2.
  • reaching or exceeding the reaction temperature acting on the safety valve 1 can also occur in connection with an overcharge of the galvanic cell 2 when the galvanic cell 2 is recharged.
  • the closure element 3 melts, so that the firm connection between the closure element 3 and the valve opening dissolves.
  • the valve opening in the cell case cover 6 is thereby released.
  • a gas formed on account of the heating of the galvanic cell 2 in the cell interior of the galvanic cell 2 can then escape from the cell interior of the galvanic cell 2 through the valve opening of the cell housing cover 6.
  • FIG. 2 shows, as a further exemplary embodiment, a prismatically formed galvanic cell 2, which is surrounded by a cell housing with a cell housing cover 6. Between the cell terminals 7 for the electrically conductive contacting of the galvanic cell 2, the cell housing cover 6 has an opening which forms the valve opening of the safety valve 1. The valve opening is closed during normal operation of the galvanic cell 2 by a closure element 3.
  • the closure element 3 which may be formed in particular as a sheet-metal strip, in particular aluminum strips, held by a holding element 4 in the valve opening of the safety valve 1, so that the closure element 3 and the valve opening during normal operation of the galvanic cell 2 are firmly connected.
  • the holding element 4 surrounds the peripheral edge of the closure element 3 and is disposed on the boundary 5 of the valve opening of the safety valve 1.
  • the holding element 4 is made of a reaction material, wherein the reaction material changes its consistency upon reaching and exceeding a force acting on the safety valve 1 reaction temperature. Since the reaction material in the embodiment is a plastic material which melts at a temperature between 95 ° C and 105 ° C, reaching or exceeding this temperature causes the holding element 4 melts and thus a gap between the boundary 5 of the valve opening and the Closure element 3 is formed, through which gas formed in the cell interior of the galvanic cell 2 can escape from the galvanic cell 2. In particular, can be completely removed from the valve opening of the safety valve 1 by gas formed in the galvanic cell 2, which flows out of the galvanic cell 2, the closure element.
  • FIG. 3 shows a further prismatically formed galvanic cell 2, which comprises a cell housing 8, wherein the cell housing 8 is sealed by a cell housing cover 6.
  • the galvanic cell 2 has two cell terminals 7 each having a different polarity.
  • a valve opening is introduced in the cell housing cover 6, a valve opening is introduced.
  • a closure element 3 is used using a holding element 4.
  • the closure element 3 is formed in the embodiment as a bursting membrane made of aluminum. To improve the bursting behavior of the bursting membrane 3 in the case of a pressure acting on the bursting membrane 3, the bursting membrane 3 has predetermined breaking points 9.
  • the bursting membrane 3 is held in the valve opening by means of the retaining element 4 in such a way that the closure element 3 is not exceeded during normal operation of the galvanic cell 2, that is to say in the case of a state of the galvanic cell 2 at which critical temperature values are not exceeded , with the valve opening is firmly connected.
  • the holding element 4 is in the embodiment as the closure element 3 surrounding plastic ring educated.
  • the holding element 4 is made of a plastic material, which on reaching or exceeding a reaction temperature at which the electrolyte of the galvanic cell 2 passes into a gaseous state, passes from a solid state of matter into a liquid state of matter.
  • the plastic ring 4 melts upon reaching or exceeding this acting on the safety valve 1 reaction temperature, so that solves the solid connection between the bursting membrane 3 and the valve opening of the safety valve 1 and thus the valve opening to protect the galvanic cell 2 from damaging Overpressure can be released. If the galvanic cell 2 warms up in such a local manner that the internal cell pressure in the interior of the galvanic cell 2 already exceeds a critical value, but the temperature acting on the safety valve is below the reaction temperature, the design of the closure element 3 as bursting membrane can open the valve opening of the Safety valve 1 are advantageously also released by the rising inside the galvanic cell 2 internal cell pressure.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

La présente invention concerne une soupape de sécurité (1) destinée à protéger une cellule galvanique (2) contre une surpression néfaste, laquelle comprend un élément de fermeture (3) et un orifice de soupape. Lorsque la cellule galvanique (2) est en fonctionnement normal, l'élément de fermeture (3) est relié solidairement à l'orifice de soupape et l'élément de fermeture (3) libère l'orifice de soupape pour protéger la cellule galvanique (2) contre une surpression néfaste. La soupape de sécurité (1) est conçue de telle sorte que, lorsqu'une température de réaction qui agit sur la soupape de sûreté (1) est atteinte, la liaison solidaire entre l'élément de fermeture (3) et l'orifice de soupape est rompue de sorte que l'orifice de soupape peut être libéré afin de protéger la cellule galvanique contre une surpression néfaste. La présente invention concerne en outre un couvercle (6) destiné à un logement de cellule (8) qui protège une cellule galvanique (2) contre les influences extérieures. Le couvercle (6) du logement de cellule comprend une soupape de sécurité (1) de l'invention. En outre, la présente invention concerne une cellule galvanique (2) qui comporte une soupape de sécurité (1) de l'invention.
PCT/EP2014/057400 2013-06-04 2014-04-11 Soupape de sécurité pour protéger une cellule galvanique contre une surpression néfaste ainsi que couvercle de logement de cellule et cellule galvanique munie d'une soupape de sécurité WO2014195048A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013210292.5A DE102013210292A1 (de) 2013-06-04 2013-06-04 Sicherheitsventil zum Schutz einer galvanischen Zelle vor schädigendem Überdruck sowie Zellgehäusedeckel und galvanische Zelle mit Sicherheitsventil
DE102013210292.5 2013-06-04

Publications (1)

Publication Number Publication Date
WO2014195048A1 true WO2014195048A1 (fr) 2014-12-11

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PCT/EP2014/057400 WO2014195048A1 (fr) 2013-06-04 2014-04-11 Soupape de sécurité pour protéger une cellule galvanique contre une surpression néfaste ainsi que couvercle de logement de cellule et cellule galvanique munie d'une soupape de sécurité

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DE (1) DE102013210292A1 (fr)
WO (1) WO2014195048A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021012912A1 (fr) * 2019-07-25 2021-01-28 宁德时代新能源科技股份有限公司 Ensemble couvercle supérieur, batterie rechargeable, et appareil utilisant une batterie
DE102021214245A1 (de) 2021-12-13 2023-06-15 Audi Aktiengesellschaft Abdeckelement in Sandwichbauweise mit aufschmelzbarer Zwischenlage für ein Batteriegehäuse, Batteriegehäuse und Kraftfahrzeug
US20230420795A1 (en) * 2022-06-23 2023-12-28 GM Global Technology Operations LLC Battery pack with sacrificial cell vent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110400895B (zh) * 2019-07-30 2021-03-09 宁德时代新能源科技股份有限公司 电池模组、二次电池及其顶盖组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855006A (en) * 1971-09-14 1974-12-17 Du Pont High energy density battery heat fusible venting means
US20060024574A1 (en) * 2004-06-22 2006-02-02 Hoon Yim Lithium ion secondary battery having safety vent responsive to temperature and pressure
DE10328862B4 (de) 2003-06-26 2006-11-16 Dilo Trading Ag Lithiumbatterie mit Überladeschutz
EP1821355A2 (fr) * 2006-01-24 2007-08-22 Toyota Jidosha Kabushiki Kaisha Batterie et procédé d'assemblage de batterie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030232236A1 (en) * 2002-06-14 2003-12-18 Mitchell Porter H. Battery package vent
DE102009020185A1 (de) * 2009-05-06 2010-11-25 Continental Automotive Gmbh Energiespeicher aus Batteriezellen mit Gehäuse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855006A (en) * 1971-09-14 1974-12-17 Du Pont High energy density battery heat fusible venting means
DE10328862B4 (de) 2003-06-26 2006-11-16 Dilo Trading Ag Lithiumbatterie mit Überladeschutz
US20060024574A1 (en) * 2004-06-22 2006-02-02 Hoon Yim Lithium ion secondary battery having safety vent responsive to temperature and pressure
EP1821355A2 (fr) * 2006-01-24 2007-08-22 Toyota Jidosha Kabushiki Kaisha Batterie et procédé d'assemblage de batterie

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021012912A1 (fr) * 2019-07-25 2021-01-28 宁德时代新能源科技股份有限公司 Ensemble couvercle supérieur, batterie rechargeable, et appareil utilisant une batterie
DE102021214245A1 (de) 2021-12-13 2023-06-15 Audi Aktiengesellschaft Abdeckelement in Sandwichbauweise mit aufschmelzbarer Zwischenlage für ein Batteriegehäuse, Batteriegehäuse und Kraftfahrzeug
WO2023110605A1 (fr) 2021-12-13 2023-06-22 Audi Ag Élément de recouvrement en sandwich comprenant une couche intermédiaire fusible destiné à un boîtier de batterie, boîtier de batterie et véhicule automobile
US20230420795A1 (en) * 2022-06-23 2023-12-28 GM Global Technology Operations LLC Battery pack with sacrificial cell vent

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