EP4315467A1 - Module de batterie et procédé de serrage de module de batterie - Google Patents

Module de batterie et procédé de serrage de module de batterie

Info

Publication number
EP4315467A1
EP4315467A1 EP22710542.6A EP22710542A EP4315467A1 EP 4315467 A1 EP4315467 A1 EP 4315467A1 EP 22710542 A EP22710542 A EP 22710542A EP 4315467 A1 EP4315467 A1 EP 4315467A1
Authority
EP
European Patent Office
Prior art keywords
battery module
pressure
battery
battery cells
pressure plate
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
EP22710542.6A
Other languages
German (de)
English (en)
Inventor
Christoph Warkotsch
Robert Loch
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP4315467A1 publication Critical patent/EP4315467A1/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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to a battery module and a method for clamping a battery module, in particular a solid-state battery such as a lithium-ion battery with a solid-state electrolyte.
  • An at least partially electrically powered vehicle has a battery or a battery module for storing electrical energy for operating an electric drive motor of the vehicle.
  • the battery module typically has a large number of individual battery cells, in particular a large number of pouch cells, which are arranged next to one another in a housing of the battery module.
  • the battery module is repeatedly charged and discharged during operation of the vehicle, with the individual battery cells being able to have different spatial distributions in the discharged state and in the charged state. For reliable operation of the battery module, certain, in particular constant, conditions with regard to the tensioning of the individual battery cells should also be observed in different operating states of the battery module.
  • the present document deals with the technical task of enabling a precise setting of stress conditions of the individual battery cells of the battery module in different operating states of a battery module, in particular in order to provide a battery module with high performance.
  • a battery module for storing electrical energy can have a rated voltage of 60V or more, or 300V or more, in particular 800V or more.
  • the battery module can be designed to store electrical energy for the operation of a drive motor of a motor vehicle.
  • a motor vehicle can optionally include several battery modules which together form a battery for the motor vehicle.
  • the individual battery modules can be connected at least partially in series and/or at least partially in parallel with one another. For example, several battery modules can be connected in series in order to provide a vehicle battery with an increased overall nominal voltage.
  • the battery module comprises one or more battery cells (in particular 10 or more or 50 or more battery cells) which are arranged next to one another between two pressure plates along the transverse axis of the battery module.
  • a battery cell can be a pouch cell, with the transverse axis being perpendicular to the surface and/or to the layers of the pouch cell.
  • the transverse axis of the battery module can coincide with the transverse axis of the vehicle in which the battery module is arranged.
  • the battery module is designed in such a way that the distance between the two pressure plates can be changed within a specific distance range, so that a change in the spatial distribution (in particular an expansion and/or a contraction) of the one or more battery cells along the transverse axis is made possible.
  • the battery module can be designed such that the change (increase or decrease) in the spatial spread of the one or more battery cells along the transverse axis causes a corresponding change (increase or decrease) in the distance between the two pressure plates.
  • the battery module can be designed in such a way that a first pressure plate of the two pressure plates is movably mounted (on a carrier of the vehicle) and a second pressure plate of the two pressure plates is immovably mounted (on another carrier of the vehicle). In this way, a change in the distance between the two pressure plates can be made possible in a reliable manner.
  • the one or more battery cells may have minimal overall spread along the transverse axis in a discharged state. Furthermore, in a charged state, the one or more battery cells can have a maximum overall spread along the transverse axis.
  • the one or more battery cells can thus be designed in such a way that the one or more battery cells expand (along the transverse axis) during a charging process and/or contract (along the transverse axis) during a discharging process.
  • the expansion can be in the range of 10% of the total expansion.
  • the maximum total spread of the one or more battery cells may be between 5% and 15% greater than the minimum total spread of the one or more battery cells.
  • Such an expansion can be present in particular in an electrochemical battery cell with a solid electrolyte (a so-called All Solid State Battery, ASSB), in particular in a lithium-ion cell with a solid electrolyte.
  • ASSB All Solid State Battery
  • the distance range in which the distance between the two pressure plates changes can be limited below by the minimum total spread and above by the maximum total spread.
  • the battery module can also be designed in such a way that a compressive force is exerted on the one or more battery cells by the two pressure plates within the entire distance range.
  • the battery module can in particular be designed in such a way that the two pressure plates exert a compressive force on the one or more battery cells which varies by at most 20%, in particular by at most 10%, within the entire distance range.
  • the battery module can be designed in such a way that the two pressure plates exert a compressive force on the one or more battery cells, so that the pressure on the one or more battery cells does not drop below a minimum and/or a maximum pressure on the one or more battery cells within the entire distance range or several battery cells is not exceeded.
  • the minimum pressure can be eg 8 bar or more and/or the maximum pressure can be 12 bar or less.
  • a battery module is thus described which is designed to expand and/or contract along the transverse axis in order to enable a corresponding expansion and/or contraction of the one or more battery cells of the battery module, and in order to always achieve a specific (possibly essentially to cause constant) pressure on the one or more battery cells. In this way, a high level of performance of the battery module can be made possible in a reliable manner.
  • the battery module can have a frame that is movably mounted along the transverse axis between two battery cells that are arranged directly next to one another.
  • the battery cells can be guided through the individual frames during expansion or contraction in order to enable the battery module to be operated as gently as possible.
  • the battery module can comprise at least one pressure element, which is designed to move the first (movably mounted) pressure plate of the two pressure plates towards the second (non-movably mounted) pressure plate of the two pressure plates push and / or pull so that the compressive force on the one or more battery cells is effected by the two pressure plates.
  • the pressure element can include at least one elastic element (eg a spring). In this way, a compressive force can be applied to the one or more battery cells in a particularly efficient and reliable manner.
  • the pressure element can comprise at least one flat or band-shaped tensioning element, in particular a rubber tensioning band and/or a coiled spring, which is designed to pull the first pressure plate towards the second pressure plate.
  • the flat or band-shaped clamping element can, for. B. form an elastic anchor that connects the two pressure plates together and pulls them together. In this way, the compressive force on the one or more battery cells can be brought about in a particularly efficient and reliable manner.
  • the pressure element can comprise at least one spring, in particular a leaf spring, a compression spring, a torsion spring and/or a cup spring, which is designed to press the first pressure plate towards the second pressure plate.
  • the spring can be arranged between a carrier for the battery module and the first pressure plate. In this way, the compressive force on the one or more battery cells can be brought about in a particularly efficient and reliable manner.
  • the pressure element can be designed in such a way, in particular by arranging the spring obliquely with respect to the transverse axis and/or by using a lever, that the force exerted by the spring on the first pressure plate depends on the distance between the two Pressure plates is changed.
  • the pressure element can have a leg spring with one leg which acts on a cam connected to the first pressure plate.
  • the pressure element can comprise a pressure spring which acts on the first pressure plate via a toggle lever. In this way, the course of the force can be set in a particularly precise manner depending on the expansion of the one or more battery cells from the pressure element via the first pressure plate to the one or more battery cells, in order to further increase the performance of the battery module.
  • a (road) motor vehicle in particular a passenger car or a truck or a bus or a motorcycle
  • the vehicle can comprise a plurality of battery modules, some of which can be arranged in series and/or parallel to one another, for example.
  • the vehicle can include at least one carrier to which the one or more battery modules are attached.
  • the vehicle may include a first battery module and a second battery module.
  • the first battery module and the second battery module can be arranged in the vehicle in such a way that the distance between the movably mounted pressure plate of the first battery module and the movably mounted pressure plate of the second battery module is reduced if there is a change in the first battery module and/or in the second battery module the distance between the two pressure plates of the respective battery module increases.
  • the first battery module and the second battery module can have a common pressure element which acts on the movably mounted pressure plate of the first battery module and on the movably mounted pressure plate of the second battery module in order to reduce the compressive force on the one or more battery cells of the first battery module and the compressive force on the to cause one or more battery cells of the second battery module.
  • a number of battery modules can be provided in a vehicle in a particularly efficient manner.
  • a method for clamping a battery module which comprises one or more battery cells. That The method includes arranging the one or more battery cells side by side along the transverse axis of the battery module between two pressure plates such that the distance between the two pressure plates can be changed within a distance range as a result of a change in the spatial spread of the one or more battery cells along the transverse axis. The method further includes applying a compressive force to the one or more battery cells within the entire standoff range. The pressure force can be brought about by the two pressure plates (and by means of one or more pressure elements). In other words, as part of the method, a compressive force can be applied to the one or more battery cells within the entire distance range. The compressive force can be applied to the one or more battery cells by means of the one or more pressure elements via the pressure plates.
  • FIG. 1a shows an exemplary vehicle with a battery or with a battery module for storing electrical energy
  • FIG. 1b shows an exemplary storage of a battery module in a vehicle
  • FIG. 2 shows an exemplary mounting of a battery module, which allows a spatial expansion of the battery cells of the battery module;
  • FIGS. 3a to 3c show different views of a battery module with an exemplary elastic pressure element; FIGS. 4a to 4e differently designed elastic pressure elements; and FIG. 5 shows a flowchart of an exemplary method for clamping a battery module.
  • FIG. 1a shows an exemplary vehicle 100 with a battery module 110 for storing electrical energy and an electric drive motor 105 that is operated with electrical energy from the battery module 110 .
  • a battery module 110 is typically installed within a battery housing (which optionally encloses a plurality of battery modules 110 ) in the vehicle 100 .
  • FIG. 1b illustrates an exemplary storage of a battery module 110 in a vehicle 100.
  • the vehicle 100 can (at least or precisely) have two side members 101, which are aligned along the longitudinal axis of the vehicle 100.
  • Cross members 102 which are aligned along the transverse axis of vehicle 100 , can be arranged between longitudinal members 101 .
  • the battery module 110 can be mounted on one or more longitudinal members 101 and/or on one or more cross members 102 of the vehicle 100 .
  • the battery module 110 includes one or more battery cells 111, in particular pouch cells.
  • the individual flat battery cells 111 can be arranged in the vehicle 100 in such a way that the surface of a battery cell 111, in particular that the individual layers of a battery cell 111, is arranged within a plane spanned by the longitudinal axis and the vertical axis of the vehicle 100.
  • the individual battery cells 111 are then arranged next to one another along the transverse axis of the vehicle 100 .
  • the fat a battery cell 111 thus extends along the transverse axis of vehicle 100
  • the battery module 110 has two pressure plates 112, 114, between which the one or more battery cells 111 are arranged.
  • the individual pressure plates 112, 114 are each arranged in a plane spanned by the longitudinal axis and the vertical axis of the vehicle 100.
  • the two pressure plates 112, 114 are connected to one another via anchors 113, with the individual anchors 113 extending along the transverse axis of the vehicle 100.
  • the pressure plates 112, 114 can be drawn together via the anchors 113 in order to bring about pressure on the one or more battery cells 111 lying in between.
  • the anchors 113 can exert a pressure of approximately 10 bar on the individual battery cells 111 .
  • the pressure on the individual battery cells 111 may be necessary for reliable operation of the battery cells 111 .
  • the individual battery cells 111 can be designed, as is the case in particular with lithium-ion cells with a solid electrolyte, to expand during a charging process and/or to contract during a discharging process.
  • the expansion and/or the contraction can in particular bring about a change in the thickness of the individual battery cells 111 (along the transverse axis of the vehicle 100 or of the battery module 110).
  • the thickness of the individual battery cells 111 can change by approximately 10% between the discharged state and the charged state.
  • the change in thickness leads to a corresponding change in the pressure or the voltage which is effected via the pressure plates 112, 114 on or in the individual battery cells 111.
  • the pressure or the voltage when charging the battery module 110 can increase, while the pressure or the voltage when discharging the battery module 110 reduced. Consequently, the mechanical stress conditions of the individual battery cells 111 change depending on the operating state of the battery module 110, which can lead to a deterioration in the performance of the battery module 110.
  • FIG. 2 shows an exemplary mounting of a battery module 110 that allows the volume of the battery module 110 to be changed during operation of the battery module 110 .
  • the mounting shown in FIG. 2 allows a change in the thickness of the individual battery cells 111 of the battery module 110 (along the transverse axis of the vehicle 100 or of the battery module 110).
  • a second pressure plate 114 of the battery module 110 is firmly connected to a carrier 101, 102 via one or more fixed bearings.
  • the opposite first pressure plate 112 of the battery module 110 is movably mounted on a support 102, in particular on a cross member, via one or more floating bearings, so that the movably mounted first pressure plate 112 can move toward the fixedly mounted second pressure plate 114 and/or from the fixedly mounted second pressure plate 114 can move away (thus allowing a change in the thickness of the individual battery cells 111).
  • the two pressure plates 112, 114 can be connected to one another via anchors 113 which have a variable length in order to allow the overall thickness of the battery module 110 to be changed (along the transverse axis).
  • the anchors 113 can be designed to expand in accordance with the expansion of the battery module 110 and, if necessary, to exert a substantially constant pressure on the individual battery cells 111 (which is ideally independent of the expansion of the anchors 113).
  • the individual anchors 113 can have one or more elastic tensioning elements (or be designed as such).
  • FIGS. 3a to 3c show different views of a battery module 110 in which the two pressure plates 112, 114 are connected to one another at two opposite edges via a clamping element 313, for example via an elastic (rubber) band.
  • the clamping elements 313 are configured to expand or contract in order to allow the battery cells 111 to expand.
  • the individual battery cells 111 are each arranged in a cell frame 311, with the cell frames 311 being able to move away from one another when the individual battery cells 111 expand and toward one another when the individual battery cells 111 shrink.
  • the individual battery cells 111 are electrically conductively connected to one another via cell contacts 315 (eg to form a series connection of the individual battery cells 111).
  • FIG. 3a shows a side view of the battery module 110 (i.e. the height axis corresponds to the vertical axis and the transverse axis corresponds to the horizontal axis in Figure 3a).
  • FIG. 3b shows the section through the battery module 110 indicated by the arrows in FIG. 3a.
  • FIG. 3c shows a section through the battery module 110, in which the vertical axis corresponds to the height axis and the horizontal axis to the longitudinal axis. 3c illustrates how the battery module 110 is movably mounted on cross members 102 of the vehicle 100 in order to allow an expansion and/or contraction of the battery module 110 along the transverse axis.
  • Flat clamping elements 313 made of a suitable material (eg rubber) can thus be used, which allow a 10% change in cell length or cell thickness with (possibly approximately) constant force (eg 10 bar pressure based on the cell area).
  • the clamping elements 313 can, for. B. be designed in such a way that the force caused by a 10% change in cell length or cell thickness deviates by at most 10% or at most 20% from a mean force value.
  • the clamping elements 313 can be positively and/or non-positively connected to the pressure plates 112, 114 arranged on a battery module 110 be.
  • the cell length or cell thickness change of 10% can be made possible by a fixed/floating bearing arrangement of a battery module 110 .
  • the cells 111 can be stored in frames 311, where the individual frames 311 can be stacked in such a way that they form a guide to one another.
  • a cell 111 can be arranged between two frames 311 in each case.
  • the number of frames 311 per module 110 can thus be 1 less than the number of cells 111 .
  • the two pressure plates 112, 114 can form the beginning and end frames, respectively.
  • an intermediate layer e.g. as an adhesive or as a loose intermediate layer
  • the shear stresses can be caused in particular by the fact that the individual cells 111 expand in all spatial directions.
  • the clamping elements shown in FIGS. 3a to 3c can generally be referred to as pressure elements 313, which are designed to apply pressure to the one or more cells 111 via the pressure plates 112, 114.
  • FIGS. 4a to 4e illustrate different configurations of pressure elements 313, which allow the battery 110 to expand with an (at least approximately) constant pressure on the battery module 110 or on the individual battery cells 111.
  • 4a shows the use of one or more serpentine springs as tensioning elements 313.
  • a serpentine spring can already have a specific pretension (eg 50% elongation) in the non-extended state of the battery module 110 in order to bring about a force on the battery cells 111.
  • Fig. 4b shows the use of a leaf spring as a pressure element 313 to bring about a tension within the battery cells 111.
  • the leaf spring can be arranged, for example, between a (longitudinal) support 101 and the loosely mounted first pressure plate 112 of the battery module 110 in order to exert pressure on the exercise loosely mounted first pressure plate 112.
  • the leaf spring is thus supported on one side against the carrier 101 and on the other side against the first pressure plate 112.
  • a fixed bearing 314 for mounting the battery module 110 in particular for mounting the second pressure plate 114 , can be arranged in the center of the vehicle 401 .
  • the battery arrangement shown in FIG. 4b can be arranged in the other half of the vehicle 100 in a mirrored manner.
  • a disc spring can be used as an alternative or in addition to a leaf spring.
  • FIG. 4c shows the use of compression springs 402 (as pressure element 313), which are arranged between a (longitudinal) support 101 and the loosely mounted first pressure plate 112 in order to exert pressure on the first pressure plate 112.
  • the compression springs 402 can be arranged in pairs obliquely to the transverse axis, so that the force vector changes when the battery module 110 expands and, if necessary, enables a degressive force curve (when the battery module 111 expands, the compression springs 402 tilt to the side , so that the proportion of force of the compression springs 402 is reduced in the direction of the expansion of the battery module 110).
  • the course of the force acting on the first pressure plate 112 can thus be adjusted by the angle of the compression springs 402 .
  • FIG. 4d illustrates an arrangement of battery modules 110 on both sides in relation to the center 401 of the vehicle.
  • the battery modules 110 expand towards the center 401 of the vehicle.
  • the loosely mounted first pressure plates 112 of the two battery modules 110 thus face the center 401 of the vehicle.
  • a (common) compression spring 402 is arranged between the two battery modules 110, which is designed to exert a force on the loosely mounted first pressure plates 112 of both batten emodules 110 via toggle levers 403.
  • the force vector can be changed in the path direction of the expansion of the battery module 110 via the toggle lever 403 depending on the extent of the expansion, in particular in order to provide a degressive course of the force as the extent of the expansion increases.
  • torsion springs 405 (as pressure element 313) are used to allow expansion of battery module 110 and thereby to exert a force on loosely mounted first pressure plate 112.
  • 4e shows an example of the position of the first pressure plate 112 in the expanded state of the battery module 110 (pressure plate 112 shown in dashed lines).
  • the leg of a leg spring 405 can be supported on a pressure plate-fixed cam 406 of the pressure plate 112. Via the lever length of the one or more torsion springs 405, which changes when the battery module 110 expands, a degressive course of force can be brought about as the extent of the expansion of the battery module 110 increases.
  • FIG. 5 shows a flow chart of an example method 500 for clamping a battery module 110 , wherein the battery module 110 comprises one or more (e.g. 10 or more or 50 or more) battery cells 111 .
  • the method 500 comprises arranging 501 the one or more battery cells 111 next to one another along the transverse axis of the battery module 110 between two pressure plates 112, 114 such that the distance between the two pressure plates 112, 114 as a result of a change in the spatial spread of the one or more battery cells 111 is variable along the transverse axis within a range of distances.
  • the spread of the one or more battery cells 111 can be increased by an expansion of the one or more battery cells 111 (during a charging process) and/or by a contraction of the one or more battery cells 111 (during a discharging process). be reduced.
  • the distance range may extend between the minimum spread (in the discharged state) and the maximum spread (in the charged state) of the one or more battery cells 111 .
  • the method 500 further includes causing 502, through or via the two pressure plates 112, 114, a compressive force on the one or more battery cells 111 within the entire distance range.
  • a (possibly essentially constant) pressure can thus be exerted on the one or more battery cells 111 over the entire distance range.
  • the measures described in this document make it possible to expand a battery module 110 with adjustable pressure or voltage ratios of the individual battery cells 111 . In this way, the performance of the battery module 110 can be increased.

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

Abstract

L'invention concerne un module de batterie pour le stockage d'énergie électrique, le module de batterie comprenant un ou plusieurs éléments de batterie qui sont disposés l'un à côté de l'autre le long de l'axe transversal du module de batterie entre deux plaques de pressage. Le module de batterie est conçu de telle sorte que l'espacement entre les deux plaques de pressage peut être modifié dans une plage d'espacement, de telle sorte qu'un changement dans un étalement physique de l'un ou plusieurs éléments de batterie le long de l'axe transversal est rendu possible. Le module de batterie est en outre conçu de telle sorte qu'une force de pressage est appliquée à l'un un plusieurs éléments de batterie par les deux plaques de pressage dans toute la plage d'espacement.
EP22710542.6A 2021-03-30 2022-03-01 Module de batterie et procédé de serrage de module de batterie Pending EP4315467A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021107991.8A DE102021107991A1 (de) 2021-03-30 2021-03-30 Batteriemodul und Verfahren zum Verspannen eines Batteriemoduls
PCT/EP2022/055047 WO2022207210A1 (fr) 2021-03-30 2022-03-01 Module de batterie et procédé de serrage de module de batterie

Publications (1)

Publication Number Publication Date
EP4315467A1 true EP4315467A1 (fr) 2024-02-07

Family

ID=80780986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22710542.6A Pending EP4315467A1 (fr) 2021-03-30 2022-03-01 Module de batterie et procédé de serrage de module de batterie

Country Status (7)

Country Link
US (1) US20240072359A1 (fr)
EP (1) EP4315467A1 (fr)
JP (1) JP2024512527A (fr)
KR (1) KR20230135103A (fr)
CN (1) CN116941083A (fr)
DE (1) DE102021107991A1 (fr)
WO (1) WO2022207210A1 (fr)

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DE102020110744A1 (de) * 2020-04-21 2021-11-18 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Anordnen eines mehrere Batteriemodule aufweisenden Hochvoltspeichers an einer Tragstruktur eines Kraftwagens sowie Hochvoltspeicheranordnung
EP4224599A3 (fr) * 2022-01-17 2023-11-01 Aurora Flight Sciences Corporation, a subsidiary of The Boeing Company Batteries, composants de batterie, et procédés et appareil associés pour atténuer un événement d'emballement thermique d'une batterie

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CN116941083A (zh) 2023-10-24
JP2024512527A (ja) 2024-03-19
KR20230135103A (ko) 2023-09-22
DE102021107991A1 (de) 2022-10-06
WO2022207210A1 (fr) 2022-10-06

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