EP4430700A1 - Dispositif de protection pour éléments de batterie - Google Patents

Dispositif de protection pour éléments de batterie

Info

Publication number
EP4430700A1
EP4430700A1 EP22786266.1A EP22786266A EP4430700A1 EP 4430700 A1 EP4430700 A1 EP 4430700A1 EP 22786266 A EP22786266 A EP 22786266A EP 4430700 A1 EP4430700 A1 EP 4430700A1
Authority
EP
European Patent Office
Prior art keywords
protective
receptacle
hazard
protective element
main direction
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.)
Pending
Application number
EP22786266.1A
Other languages
German (de)
English (en)
Inventor
Helmut Kastler
Manuel RIEGLER
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.)
John Deere Electric Powertrain LLC
Original Assignee
John Deere Electric Powertrain LLC
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 John Deere Electric Powertrain LLC filed Critical John Deere Electric Powertrain LLC
Publication of EP4430700A1 publication Critical patent/EP4430700A1/fr
Pending 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
    • 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
    • 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
    • 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
    • H01M50/333—Spring-loaded vent valves
    • 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
    • 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
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • H01M50/358—External gas exhaust passages located on the battery cover or case
    • 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
    • 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 protective device for battery cells with a hazard receptacle for the outgassing area of a battery cell and a protective receptacle opposite the hazard receptacle in a main direction, with a venting channel running transversely to the main direction being provided between the hazard receptacle and the protective receptacle for discharging hot gas.
  • outgassing battery cells have an outgassing area, for example the area of the positive pole, in which a predetermined breaking point is provided as an outgassing valve, through which hot gases occurring in the event of a fault can escape from the interior of the battery cell. Since these hot gases can damage adjacent components in the vicinity of the outgassing battery cell, for example other battery cells, outgassing channels can be provided, for example as shown in AT521257A4, which divert the hot gases in a targeted manner.
  • the outgassing channels of the AT521257A4 are formed by a device for contacting two battery cells and are designed in such a way that the hot gases are deflected into an outgassing channel running transversely to the direction in which the battery cells are joined, which reduces the heat transfer from the hot gases to neighboring battery cells.
  • the disadvantage of the prior art is that not only large amounts of thermal energy are released during outgassing, but also large amounts of kinetic energy. causing the battery cell or other components to be pushed out of position or damaged. If the degassing channel were simply enlarged in order to thereby reduce the pressure and consequently the kinetic energy of the hot gases, the hot gases would remain longer in the degassing channel after the pressure reduction and could more easily transfer their thermal energy to adjacent components. In addition, the distance between the hot gases and the adjacent components is reduced for a given component spacing and larger outgassing channel, which further promotes an undesirable heat transfer.
  • the invention is therefore based on the object, especially when battery cells and/or other sensitive components are packed tightly, to derive the hot gases from a battery cell in the event of a fault in such a way that damage or displacement of the components due to the kinetic and thermal energy of the hot gases is avoided as far as possible.
  • the invention achieves the stated object in that a protective element covering the hazard receptacle in a rest position can be displaced by escaping hot gas along a guide into a triggering position covering the protective receptacle.
  • the outgassing area of the battery cell in the hazard receptacle is covered by the protective element opposite the outgassing channel, which prevents damage to the outgassing area of the battery cell, in particular the predetermined breaking point forming the outgassing valve, by hot gas flowing in the outgassing channel.
  • the outgassing hot gases and/or electrically conductive particles transfer their kinetic energy at least partially in the sense of an elastic impact to the protective element, which is thereby displaced along the guide in the direction of the protective receptacle.
  • the protective element not only extracts kinetic energy from the gas, but also allows the hot gas to enter the space between the The outgassing channel running transversely to the main direction. In order to allow this entry, the protective element does not have to move into the tripping position in which it covers the protective receptacle, but only leave the rest position along the guide.
  • the protective element forms a physical barrier to the protective receptacle by covering it.
  • This physical barrier which is preferably designed to be electrically insulating, acts not only against escaping hot gases, but also against other electrically conductive solid residues caused by accidents, which can lead to short-circuit reactions.
  • An adjacent component for example a further battery cell, can be arranged in the protective receptacle. Due to the fact that the protective element is displaced ever further along the guide away from the rest position in the direction of the release position in proportion to the transmitted kinetic energy, the opening to the outgassing channel also increases with increasing kinetic energy of the gas.
  • the shape and mass of the protective element can be adapted to the expected kinetic energy of the gas to be released, so that it absorbs more or less kinetic energy of the gas without allowing displacement or further damage to the battery cell as a result of the resulting counterforce.
  • the guide can have a guide web which is arranged on the edge of the protective element and runs in the main direction.
  • the area between the outgassing area of the battery cell and the protective receptacle can be kept largely free of installation, apart from the required protective element, so that the hot gas cannot attack any other components.
  • guide webs can be configured in a geometrically simple manner and do not include any moving parts in order to fulfill their function, they are also less susceptible to wear and are easy to produce, for example by injection molding.
  • a guide groove can be provided in the protective element, in which the guide bar engages as a spring.
  • the guide has a plurality of guide webs distributed evenly around the circumference of the protective element.
  • the guide webs there is a form fit between the guide webs and the protective element transverse to the main direction, whereby the protective element itself is held in position by high kinetic energy transfer from the hot gas and can only be displaced along the guide from the rest position to the release position without additional bearing elements.
  • the evenly distributed arrangement of the guide webs prevents the protective element from jamming on a guide web, since the resistance between the protective element and the guide that occurs during displacement is inevitably distributed evenly over the edge and the protective element is accelerated evenly over its entire surface.
  • the protective element can have a cutout for a connecting conductor to pass through, which can be offset transversely to the main direction to the outgassing area of the battery cell. This is based on the consideration that the escaping hot gases do not escape over the entire end section of the battery cell accommodated in the hazard compartment, but rather over a preferred predetermined breaking point, which can be formed, for example, by an outgassing valve as an outgassing area.
  • a connecting conductor can be routed through the cutout to another battery cell or a consumer, for example, without the hot gases also being routed directly through this cutout.
  • the hot gases can still transfer their kinetic energy to the surface above the Degassing area not broken through protective element and be directed by this into the outgassing channel.
  • the recess can be provided in the center of the protective element.
  • the connection conductor can be connected to the protective element with high tensile strength.
  • the connecting conductor can also be a connecting pin, on which the protective element is slidably mounted and which is preferably connected via a fuse to a contact point arranged in the protective receptacle.
  • the contact point can be a contact spring for contacting a battery cell accommodated in the protective receptacle on the casing side.
  • the safety fuse can be covered with a heat shield towards the outgassing channel and thus also towards the protective element on the one hand and towards the protective receptacle on the other.
  • This heat shield can, for example, consist of a mineral, in particular from the mica group.
  • the hazard receptacle, the protective element and the protective receptacle be arranged concentrically with one another in the main direction.
  • This arrangement enables a dense packing of several groups of battery cells and thus facilitates in particular the interconnection of battery cells arranged one behind the other in the main direction.
  • the path to be bridged by the protective element from the rest position to the released position can be minimized, as a result of which less kinetic energy has to be transferred from the escaping hot gases to the protective element for shifting into the released position.
  • the protective element can prevent displacement from the be secured under a release acceleration of less than 100g.
  • a release acceleration of less than 100g.
  • the protective element can be held in the rest position in a non-positive manner, for example by a spring.
  • the protective element can also be fixed in the rest position with a form fit or material connection, in which case a predetermined breaking point can be provided which breaks when a force corresponding to an acceleration of 100 g is exceeded.
  • the force proportional to the trip acceleration can be calculated by multiplying the trip acceleration by the mass of the protection element.
  • the protective element can have retaining tabs that break when the force proportional to the triggering acceleration is exceeded.
  • the mechanical stability and reliability of the protective device during operation can be increased, particularly when arranging several battery cells, if the protective receptacle is formed by a cylindrical recess in a base whose outside facing the outgassing channel forms a stop for the protective element in the tripped position.
  • a strong kinetic energy transfer to the protective element does not cause a shift beyond the stop, which means that the trigger position can be spatially defined and the protective element not only cover the protective receptacle in the trigger position, but can even rest against the protective receptacle.
  • the cylindrical recess of the base can also accommodate a further battery cell on the shell side and thus store it stably.
  • the guide for the protective element can be attached to the base, whereby the relative positions of the guide, the protective element and the protective receptacle can be fixed so that there is no relative displacement of these components to one another, for example in the event of operational vibrations.
  • the hazard recording include several locking arms for fixing the battery cell.
  • the protective device can be arranged on a battery cell via a positive and/or non-positive fit.
  • the locking arms can engage in a groove running around the battery cell or simply clamp it.
  • the latching arms are formed by the guide webs, with an area lying between the protective receptacle and the hazard receptacle remaining free as an outgassing channel.
  • the protective element has at least one retaining tab, which engages behind the end section of a latching arm or guide bar facing away from the outgassing channel, so that the end section forms a limit stop for the retaining tab in the main direction.
  • the retaining tab can protrude from the protective element against the main direction.
  • the retaining tab breaks at a predetermined breaking point due to the kinetic energy transmitted by escaping hot gases, which allows the protective element to be displaced from the rest position.
  • the protective element can be guided along the guide webs via the broken holding tab.
  • the protective element has a plurality of retaining tabs distributed around the circumference, it being possible in particular for a retaining tab to be provided for each latching arm.
  • the protective device can have a base with a cylindrical recess forming the protective receptacle, on which a plurality of guide webs are attached on the side opposite the cylindrical recess, which form the hazard receptacle between them.
  • These guide webs run through the outgassing channel in an area adjacent to the base.
  • the guide webs can form latching arms for fixing the battery cell in the hazard receptacle.
  • the Base just like the protective element have a passage opening for a connecting conductor for electrical contacting of the two battery cells.
  • the battery cells can preferably be cylindrical battery cells with a circular base area, which are serially contacted with one another through the protective device.
  • the invention also relates to a battery system with a plurality of protective devices according to the invention adjoining one another transversely to the main direction.
  • a battery system with a plurality of protective devices according to the invention adjoining one another transversely to the main direction.
  • the end sections of battery cells of a first group are inserted into the hazard receptacles of the protective devices, and the end sections of battery cells of a second group are inserted into the protective receptacles of the protective devices.
  • a continuous outgassing channel is formed between the two groups by the protective devices.
  • the protective element of the protective device placed on this battery cell is shifted from the rest position to the trigger position, whereby the escaping hot gas not only is prevented from reaching the battery cell adjacent in the main direction, but is also diverted into the continuous outgassing channel. Since the diverted flow of hot gas in the immediate vicinity of the outgassing battery cell also has a directional component directed against the main direction due to the rebound on the protective element, the battery cells lying transversely to the main direction become electrically conductive due to the protective elements of the adjacent protective devices that are in the rest position Protected against solid residues. In particular, this keeps the flow of hot gas away from the outgassing areas of the surrounding battery cells, so that a chain reaction of several incidents can be effectively avoided.
  • the protective devices can also be arranged in a common carrier.
  • the protective devices can be stored with play in the carrier or the protective devices are rigidly connected to the carrier and the hazard and possibly also protective receptacles allow end sections of the battery cells inserted therein to be stored with play.
  • the common carrier can be a spacer for two battery modules, each comprising a group of battery cells.
  • FIG. 1 shows an exploded view of a protective device according to the invention and a battery cell
  • FIG. 2 shows a larger-scale section through the protective device in the rest position along the line II-II of FIG.
  • FIG. 3 shows a section corresponding to FIG. 2 of the protective device in the tripped position
  • FIG. 4 shows a section on a smaller scale through a battery system with several protective devices according to the invention arranged in a common carrier.
  • a protective device comprises a hazard receptacle 1 for the outgassing area 2 of a battery cell 3 and a protective receptacle 5 opposite the hazard receptacle 1 in a main direction 4.
  • An outgassing channel 6 runs between the hazard receptacle 1 and the protective receptacle 5, into which hot gases escaping from the battery cell 3 are routed in the event of a fault .
  • a Protective element 7 can be displaced along a guide between a rest position and a release position.
  • the protective element 7 covers the hazard receptacle 1 in relation to the outgassing channel 6, as shown in FIG. If, due to a malfunction in the battery cell 3, hot gases escape from the outgassing area 2 of the battery cell 3, they collide with the protective element 7 and transfer part of their kinetic energy to it, as a result of which the protective element 7 is displaced along the guide from the rest position and the access of the hot gases to the outgassing channel 6 is made possible. If sufficient kinetic energy is transferred to the protective element 7 as a result of strong outgassing, this is displaced along the guide into the release position, in which the protective element 7 covers the protective receptacle, as shown in FIG. 3 .
  • the guide can be easily implemented via one or, as shown in the drawing, several guide webs 8, with several guide webs 8 also enabling a form-fitting mounting of the protective element 7 transversely to the main direction 4 and the probability that the protective element 7 tilts during a displacement, reduce. Since the hot gases emerge from the outgassing area 2 in a locally concentrated manner, a gap can be formed
  • connection conductor 10 may be provided for the implementation of a connection conductor 10 without significantly impairing the functioning of the protective device. It is important that the recess 9 is arranged offset to the outgassing area 2 transversely to the main direction 4 in order to prevent appreciable amounts of hot gas escaping through the recess 9 without transferring its kinetic energy to the protective element 7 .
  • the cross section of the connection conductor 10 can essentially correspond to the cross section of the cutout 9, as a result of which the cutout 9 extends through the connection conductor
  • the outgassing area 2 in Figs. 1 to 3 extends radially outwards from the edge of the pole cap connected to the connection conductor 10 .
  • the hot gas thus does not flow in the direction of the connection conductor 10, but radially outward away from it.
  • the protective element 7 does not come loose from the rest position unintentionally during operation, for example due to vibrations, it can be secured against unintentional displacement. Tests have shown that securing against a triggering acceleration of at least 100 g prevents unintentional displacement, but is nevertheless sensitive enough to allow displacement induced by escaping hot gases and/or electrically conductive particles. As shown in the drawing, this fuse can be implemented by a predetermined breaking point 11.
  • the protective device is locked via latching arms 12 to a groove 13 running around the casing of the battery cell 3 .
  • the protective element 7 has one or more retaining tabs 14 which comprise a tab leg 15 running transversely to the main direction 4 .
  • the latching arms 12 form a stop in the main direction 4 for the tab leg 15 of the retaining tab 14 in the rest position. If, during outgassing, the energy transfer from the hot gas to the protective element 7 is so high that the predetermined breaking point 11 breaks, the tab leg 15 breaks from the retaining tab 14, as a result of which the stop in the main direction 4 is eliminated and the protective element is displaced in the main direction 4 by the energy transfer from the hot gas (see FIG. 3).
  • the hazard receptacle 1, protective element 7 and protective receptacle 5 are arranged concentrically to one another in the main direction 4, since as many battery cells 3 as possible can be packed tightly in three spatial directions and thus a high energy density in the Battery system is made possible.
  • the protective receptacle 5 is formed by the cylindrical recess 16 of a base 17, since this recess 16 enables a further battery cell 3 to be positioned spatially close and to be electrically contacted easily via its end section 18 in the main direction 4.
  • FIG. 4 shows such a battery system with a number of protective devices according to the invention, which are arranged in a common carrier 19 .
  • the carrier 19 forms recordings in which the individual protective devices can be used.
  • the course of the hot gases is shown schematically by the arrows 20 in FIG.
  • the protective element 7 located in the area of the outgassing battery cell 3 in the trigger position shields the protective receptacle 5 downstream in the main direction 4 from the hot gases, which bounce off this protective element 7 in the trigger position and are deflected in the direction of the neighboring protective elements. There they meet the protective elements 7 that are in the rest position, where they are deflected again and discharged via the continuous outgassing channel 6 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un dispositif de protection pour des éléments de batterie, comprenant un récipient de risque (1) pour la zone d'émission de gaz (2) d'un élément de batterie (3) et un récipient de protection (5) situé à l'opposé du récipient de risque (1) dans une direction principale (4), un conduit d'émission de gaz (6) s'étendant transversalement à la direction principale (4) pour évacuer le gaz chaud étant disposé entre le récipient de risque (1) et le récipient de protection (5). L'invention vise à mettre au point un dispositif de protection du type décrit dans l'introduction de manière à ce que, en particulier en cas de tassement serré d'éléments de batterie et/ou d'autres composants vulnérables, les gaz chauds provenant d'un élément de batterie sont évacués en cas de dysfonctionnement, de telle sorte qu'un endommagement ou un déplacement des composants par l'énergie cinétique et thermique des gaz chauds est évité autant que possible, selon l'invention, un élément de protection (7), qui, dans une position de repos, recouvre le récipient de danger (1), peut être déplacé le long d'un guide par la sortie du gaz chaud dans une position de déclenchement recouvrant le récipient de protection (5).
EP22786266.1A 2021-11-11 2022-09-30 Dispositif de protection pour éléments de batterie Pending EP4430700A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50901/2021A AT525598B1 (de) 2021-11-11 2021-11-11 Schutzvorrichtung für Batteriezellen
PCT/AT2022/060343 WO2023081939A1 (fr) 2021-11-11 2022-09-30 Dispositif de protection pour éléments de batterie

Publications (1)

Publication Number Publication Date
EP4430700A1 true EP4430700A1 (fr) 2024-09-18

Family

ID=83688680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22786266.1A Pending EP4430700A1 (fr) 2021-11-11 2022-09-30 Dispositif de protection pour éléments de batterie

Country Status (4)

Country Link
US (1) US20250030114A1 (fr)
EP (1) EP4430700A1 (fr)
AT (1) AT525598B1 (fr)
WO (1) WO2023081939A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116598687A (zh) * 2023-06-26 2023-08-15 深圳市格伏恩新能源科技有限公司 一种储能电池片立体组装电池结构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101268296B1 (ko) * 2012-11-16 2013-05-28 주식회사 유니크 축전지용 벤트 캡
AT521257B1 (de) * 2018-11-30 2019-12-15 Raiffeisenlandesbank Oberoesterreich Ag Vorrichtung zum unabhängigen Kontaktieren zweier Batteriezellen
DE102019100094A1 (de) * 2019-01-04 2020-07-09 Mann+Hummel Gmbh Entgasungseinheit und Elektronikgehäuse, insbesondere Batteriegehäuse
DE102019007454A1 (de) * 2019-10-24 2021-04-29 Kaco Gmbh + Co. Kg Ventil zum Druckausgleich und/oder zur Notentlüftung eines Behälters, vorzugsweise eines Gehäuses einer Batterie von Elektrofahrzeugen, sowie Behälter mit einem solchen Ventil
AT522585B1 (de) * 2019-12-13 2020-12-15 Kreisel Electric Gmbh & Co Kg Vorrichtung zum Trennen der elektrischen Verbindung zu einer Batteriezelle im Ausgasungsfall
CN111946877B (zh) * 2020-07-29 2022-04-22 蜂巢能源科技有限公司 防爆阀

Also Published As

Publication number Publication date
WO2023081939A1 (fr) 2023-05-19
AT525598B1 (de) 2023-08-15
AT525598A1 (de) 2023-05-15
US20250030114A1 (en) 2025-01-23

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