WO2024246017A1 - Elektro-gehäuse - Google Patents
Elektro-gehäuse Download PDFInfo
- Publication number
- WO2024246017A1 WO2024246017A1 PCT/EP2024/064556 EP2024064556W WO2024246017A1 WO 2024246017 A1 WO2024246017 A1 WO 2024246017A1 EP 2024064556 W EP2024064556 W EP 2024064556W WO 2024246017 A1 WO2024246017 A1 WO 2024246017A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- electrical housing
- cover
- electrical
- housing according
- 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.)
- Ceased
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
- H01M50/271—Lids or covers for the racks or secondary casings
- H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
- H01M50/282—Lids or covers for the racks or secondary casings characterised by the material having a layered structure
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
-
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/231—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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 present invention relates to an electrical housing as a housing for an electrical circuit, which is designed in particular as a module constructed from a large number of elementary electrical storage cells for constructing a battery module, which is part of a rechargeable high-voltage battery system, as is installed, for example, in electric vehicles.
- an electrical housing generally comprises two parts, namely a base or tray and a cover that closes off the base.
- the two parts are tightly sealed at a contact area, for example by screwing, riveting, welding or gluing, to provide thermal, mechanical, electrical and chemical protection and to shield against other negative influences from the external environment.
- Additional functional and safety components can be used on the housing, generally on and/or the cover. These include insulating materials that ensure fire protection in the event of a battery thermal runaway and at the same time protect the batteries inside from harmful external influences, such as excessively high or too low internal and/or external temperatures.
- Known electrical housings for battery modules are designed as metal housings, whereby maintaining an optimal temperature range in all operating conditions, especially with the currently common use of lithium-ion batteries as elementary storage cells, generally requires the use of a cooling system with a cooling plate, in particular as a component of the electrical housing.
- DE 696 28 289 T2 discloses a sealed and electrically shielded container for encapsulating an electronic control panel made of a multilayer metal-plastic laminate.
- a known electrical housing provides an electrically insulating coating on the outside and/or inside, which is implemented using a film or a coating.
- an electrical housing as a housing for an electrical circuit, which is designed in particular as a module made up of a large number of elementary electrical storage cells for building a battery module, the electrical housing comprising a lower part or a tray and a cover, by the features of claim 1 in that the lower part and/or the cover of the electrical housing consists of a multilayer composite with at least one insulation layer, by means of which, in a closed state of the electrical housing, a conductive outer layer is electrically separated or insulated from a conductive inner layer of the closed electrical housing.
- an electrical housing according to the invention has a layer on one component of the electrical housing, even in a closed state, which layer is electrically insulated from the other component of the electrical housing.
- Multilayer composite or multilayer coating systems are known, among other things, as shielding systems for the thermal and acoustic shielding of emission sources in the combustion engine environment. Such systems are in widespread series use. Shielding systems, particularly for the thermal insulation of exhaust gas-carrying components or heat sources from combustion engines. The focus of shielding systems of this type is in particular the protection and/or thermal shielding of peripheral temperature-sensitive components.
- these multilayer composite shielding systems consist of three layers in a type of sandwich construction: two metallic outer layers in a smooth or dimpled design, and an insulating layer placed between the two metal layers, e.g. in the form of technical paper or fleece. The three layers are connected at suitable points, e.g. by flanging the metal layers in the edge area, welding, soldering or soldering.
- a metallic outer layer, the insulation layer and a metallic inner layer of the cover are connected to one another in a material and/or form-fitting manner such that the metallic outer layer and the metallic inner layer are electrically insulated from one another even when the electrical housing is closed.
- the outer layer or the inner layer of the cover is insulated from a lower part with only one layer.
- the outer layer or the inner layer of the cover is insulated from the outer layer or the inner layer of the lower part.
- a conductive outer layer is now separated from a conductive Inner layer is electrically separated and thus creates an external contact protection at least on the relevant part of the electrical housing by, for example, an inner wall of the lower part being electrically insulated from a closed outer layer of the electrical housing, or an outer layer of a cover being electrically insulated from an inner layer that is in contact with a lower part.
- an outer layer of the lid is electrically insulated from an inner layer which is in contact with a lower part, since the lid often has or has connections, valves, etc. which could be touched, for example, during maintenance or inspection.
- the lid has a conductive layer on the inside of the housing which is insulated from the rest of the electrical housing and can prevent, for example, a short circuit within the electrical housing from being transmitted through the lid to an outer shell.
- part of the lid is advantageously electrically insulated from the tub. This additional electrical insulation therefore represents a new type of safety measure which is significantly more resistant and durable than an insulating outer layer of paint which is easily scratched and therefore unusable.
- the enclosed electrical circuit can be electrically insulated over its entire surface, both inside and outside, as will be described in more detail using embodiments of the invention.
- the insulation layer electrically separates the conductive outer layer from the conductive inner layer across the entire electrical housing.
- the insulation layer and comprehensive contact protection in the multilayer composite not only ensure Defined dielectric properties also create separate electromagnetic shields inside and outside.
- an end region of the lower part or the tub or the lid is designed as a fold or flange.
- the metallic outer layer and the metallic inner layer are electrically insulated from one another by the insulation layer, preferably in that the metallic inner layer is recessed or shortened relative to the insulation layer in the end region in such a way that the flange or fold has only one layer of metallic outer layer and insulation layer.
- the metallic inner layer encloses the insulation layer in the end region
- the metallic outer layer is designed to be recessed or shortened relative to the insulation layer in the end region in such a way that an insulating gap or a gap is arranged between the metallic inner layer and the metallic outer layer.
- an electrically insulating layer made of a separate insulation material is arranged in the end region, which is characterized by high mechanical strength and good deformability while maintaining the electrical insulation between the outer layer and the inner layer.
- the metallic inner layer has recesses in the end region, the diameter of which is larger than a diameter of a screw connection or metallic conductive rivet in a closed state of the electrical housing.
- This forms a flange connection between the lower part and the cover, through which the respective outer layers are connected to one another in a conductive manner without an electrical connection being established with the inner layer.
- the screw connection or riveting runs through the respective recesses of the end region in an electrically insulating sleeve.
- An essential development of the invention is characterized in that the insulation layer carries a seal in the end region, in particular in the gap.
- the gap separates the inner layer and the outer layer from one another and now carries this seal as additional electrical insulation, the insulation layer forming a carrier for both conductive layers.
- the seal is arranged between the lower part or the tray and the lid and is clamped together by fixing these components of the electrical housing so that the seal forms a pressure relief valve.
- the lower part and/or the cover are fixed to one another by means of a clamp, screw connections, rivets or adhesive.
- a clamp screw connections, rivets or adhesive.
- both detachable and non-destructively detachable connections can be made to an electrical housing according to the invention.
- a seal is designed as an adhesive, through which the two components of the electrical housing are fixed to each other in the closed state. are, at least in a flange area formed by the base and cover.
- the lower part and the cover are connected to one another in one piece at one edge.
- This connection is preferably designed as a type of hinge or as a folding or bending edge and is formed by at least the outer layer and/or the inner layer with or without the insulation layer.
- the base and lid are designed like plates and thus each have at least one recess.
- the base and lid are mirror-symmetrical to one another.
- the present invention is based on the knowledge that a multilayer structure from the field of thermal shielding systems with various embodiments and advantages is known and can be expanded to include an electrical insulation layer.
- a structure consisting of a lower part and a cover forms at least one closed Faraday cage when connected to one another, which can also be made EMC-proof and can also be made potential-free on an outer layer compared to an inner layer on the cover and/or the lower part of the electrical housing.
- Figures 1a to 1f paired sectional representations of a respective end region of a multilayer composite before and after folding
- Figures 2a to 2c each a sectional view of an end region of a multilayer composite provided with an additional insulating layer
- Figures 3a to 3d sectional views of embodiments of an electrical housing around a contact area of a single-layered base and a cover made of a multilayer composite material and
- FIG. la to f show, in sectional views, a basic structure of a multilayer composite 1 with at least one insulation layer 2, wherein a conductive outer layer 3 is electrically separated from a conductive inner layer 4 by the insulation layer 2.
- a respective end region 5 a multilayer composite 1 before and after folding an end section 6.
- the significance and special design of the end regions 5 will be discussed in more detail below using exemplary embodiments of a connection or contact area between a lower part or a tray and a cover of an electrical housing.
- Figure 1a shows a structure of a multilayer composite 1 in which an insulation layer 2 is connected to a conductive outer layer 3 and a conductive inner layer 4, for example by the insulation layer 2 being designed to be double-sidedly adhesive in a manner not shown in more detail, in particular by temperature-controlled pressing of these layers together.
- Metals such as aluminum, steel or high-temperature and corrosion-resistant nickel-based alloys can be used for the conductive layers 3, 4.
- the insulation layer 2 is formed from an intumescent material in order to significantly increase its volume in the event of excessive heating by foaming and/or swelling in order to increase a thermal insulation effect.
- Metal sheet composite systems with a viscoelastic plastic intermediate layer can also be used.
- the end section 6 of a multilayer composite 1 is specially prepared in that the multilayer composite 1 here comprises only the insulation layer 2 with the conductive outer layer 3 over a length L.
- flanging or folding of the end section 6 thus formed results in an end region 5 in which the metallic inner layer 4 is recessed or shortened relative to the insulation layer 2 in such a way that a flanging or folding in the end region 5 has only one layer of the conductive inner layer 4 instead of two and thus only comprises five layers in the width b.
- an inner layer 4 in Figure 1d could also be fixed by this flanging or folding in the end region 5 by the insulation layer 2 and the outer layer 3, without any adhesive or other material connection of the inner layer 4 to the insulation layer 2 being necessary.
- Figure 1e shows a still more extensive preparation of an end section 6 of a multilayer composite 1 which, over a length L, again has only a two-layer structure comprising the insulation layer 2 and the conductive outer layer 3, which then runs out over a length 1 into a section consisting only of the conductive outer layer 3.
- the end region 5 After the end region 5 has been formed by folding or flanging, the end region 5 according to Figure 1f is only formed as a layering of the insulation layer 2 with an enclosing metallic outer layer 3, the outer layer 3 having a distance a or a gap at the end of the end region 5, by means of which the folded outer layer 3 is electrically insulated from the metallic inner layer 4.
- the distance or gap is e.g.
- the gap a is adjustable directly at the end of the insulation layer 2 essentially by a length difference at L > 1 in a total of only three-layered construction.
- inventions of Figures 1b and 1d assume that the material of the insulation layer 2 is sufficiently flexible and incompressible to withstand the force of the deformation of the metallic outer layer 3 around the metallic inner layer 4. transferred. Any damage to the insulation layer 2 as a result of the deformation that could impair the electrical insulation must be reliably excluded. In addition to an appropriate selection of the material of the insulation layer 2, this can be ensured by ensuring that the metallic inner layer 4 is suitably thin and easily deformable, e.g. as an aluminum foil.
- a separate insulation material 7 must be used in the area of the flange of the end region 5 in order to safely separate the upper or outer layer 3 from the lower or inner layer 4 in an insulated manner.
- a separate insulation material 7 in the form of a circumferential strip of a seal is provided for this purpose in Figure 2a.
- the embodiment according to Figure 2c proposes to apply insulation in the form of a U-profile 8 without folding or flanging the end area.
- the U- Profile 8 does not have to be electrically conductive.
- it is made from the insulating material 7.
- Figure 3a shows a section of a flange area 12 of an electrical housing, which has a single-layer base 10 and a three-layer multilayer Composite 1 comprises a cover 11.
- the cover 11 is designed according to the embodiment of Figure 1a and is placed on the single-layer lower part 10, so that the layers 4 of cover 11 and lower part 10 as inner layers form an electrically conductive connection I in at least one area.
- the lower part 10 Towards the flange 12, the lower part 10 also has a bead 13 for receiving a seal 14, which is mechanically fixed by a clamp 15' made of an electrically insulating material and surrounds the front edges of the flange 12. With this mechanical fixation, the outer layer 3 remains electrically insulated from the inner layer 4 and the housing lower part 10 and thus forms reliable contact protection on the cover 11 from the outside.
- the electrical housing of Figure 3b has a largely unchanged structure of the housing base 10 and a cover 11 which corresponds to the embodiment in Figure 1c mirrored about its axis.
- the cover 11 runs over a length L into an end area 5 with only two layers. This offers the option of riveting or screwing the cover 11 directly to the housing base 10 through a now only two-layer structure over the length L, indicated in Figure 3b by the dash-dotted line aa. This would also improve an electrical connection via the electrically conductive connections I.
- a metallic and therefore conductive clamp 15 can now be used as a mechanical fixing means, since it is only in contact with the insulation layer 2 and the single layer 4 of the housing base 10.
- the outer layer 3 - with both types of mechanical fixation - remains electrically insulated from the inner layer 4 and the housing base 10 and forms a reliable contact protection.
- the embodiment according to Figure 3c represents a further variant of the embodiments described above in Figures 3a and 3b.
- the cover 11 corresponds to the embodiment in Figure 1f mirrored about its axis. Screw connections are now possible at point aa and/or further into the end section 5 at a point bb, as is a clamping of a total of four-layered construction by a clamp 15, which can be metallic and thus conductive.
- the cover 11 is designed according to Figure I f. This results - in contrast to the embodiment in Figure 3c - in a gap a within the electrical housing as a separation of the two metallic layers 3, 4.
- a fixation is indicated as a screw connection bb, which forms one of several electrically conductive connections A.
- a clamp 15 is provided, which is placed around the front sides of the flange 12. This arrangement is very advantageous, for example, when using an electrical housing for a module or a battery as protection.
- the insulated inner layer 4 then forms additional electrical insulation between a battery system or its cell contact system and the housing base 10 or the tray. If there is a short circuit between a battery pole or the cell contact system and cover 11, then neither current nor voltage will be passed on to the outside due to the two-layer insulated structure of cover 11.
- an electrically insulated outer layer 3 is created, and thus in all cases a contact protection with a Faraday cage, which even represents an EMC-tight closure of the inner layers 4 of the electrical housing.
- the lower part 10 and cover 11 are again pressed together by a clamp 15 under spring-elastic tension, partially enclosing the flange 12, whereby the above-mentioned contact regions A, I are also formed safely and permanently and safely insulated from one another.
- the clamp 15 can be made of an electrically insulating material, but also of a metal, especially since it is only in contact with the conductive outer layers 3 of the lower part 10 and cover 11.
- another type of fixation is also indicated in Figure 4b.
- recesses 16 are provided in the inner layers 4, which have a diameter D.
- Figure 4c shows a further embodiment of a connection between the cover 11 and the lower part 10 in a flange area 12, which is essentially based on the embodiment of Figure 1c, where an end section 6 of the multilayer composite 1 comprises only the insulation layer 2 and the conductive outer layer 3 over a length L.
- the respective conductive inner layers 4 thus lie against one another to form an electrically conductive connection I of the conductive inner layers 4 of the lower part 10 and cover 11, unlike in Figures 4a, 4b.
- an inner layer 4 is designed as a contact lip that can be deformed elastically by pressure and is folded elastically in the flange area 12 in the opposite direction to the end area 5.
- Figure 4d shows a further embodiment of a flange-like connection of the cover 11 to the lower part 10.
- the end regions 5 of the respective multilayer composite 1 are slightly angled in order to build up a permanently acting spring force in the course of fixing by a clamp 15 or screwing or riveting 17, by means of which the electrically conductive connections A, I of the conductive outer layers 3 and inner layers 4 of the lower part 10 and cover 11, separated from one another by a seal 14 in the gap a, are formed securely at all times and permanently.
- the lower part 10 and the cover 11 in one embodiment of the invention are connected to one another in one piece via a bending edge.
- a structure is then created by bending or folding a bending edge to close the electrical housing, which structure corresponds in a flange region 12 to the end region 5 of the multilayer composite 1, for example in Figure 1b.
- the representations in Figures 1d and 1f can also be transferred to a one-piece connection between a lower part 10 and a cover 11, with both the lower part 10 and the cover 11 being able to be made in one or more layers.
- a structure of an edge or flange region 12, for example in Figure 1b, is then created by bending or folding the bending edge. According to the embodiments of Figures 3a to 3d, 4a to 4d, this can only be implemented on three remaining edges and end regions 5 of an electrical housing.
- the seal 14 is implemented as an adhesive in embodiments that are also not shown in any further drawings.
- an elastomer is used for this purpose, which is designed both as a permanent seal and as a fixing means.
- the lower part 10 and the cover 11 are thus pressed together under a corresponding pre-tension in such a way that, in addition to being impermeable to fluid substances, they also have electromagnetic impermeability through a circumferential electrical contact. between the lower part 10 and the cover 11.
- a separately attached clamp 15, 15' can therefore also be dispensed with in this embodiment.
- end regions 5 of the multilayer composites 1 of the embodiment of Figure 4d are preformed in the opposite direction, so that pressing together during the bonding process creates a permanent contact and thus also electrical contact A between the lower part 10 and the cover 11 through spring-elastic tensioning of these end regions 5.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480014641.4A CN120814093A (zh) | 2023-05-26 | 2024-05-27 | 电气壳体 |
| DE112024001405.4T DE112024001405A5 (de) | 2023-05-26 | 2024-05-27 | Elektro-gehäuse |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023114024.8A DE102023114024A1 (de) | 2023-05-26 | 2023-05-26 | Elektro-Gehäuse |
| DE102023114024.8 | 2023-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024246017A1 true WO2024246017A1 (de) | 2024-12-05 |
Family
ID=91375295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/064556 Ceased WO2024246017A1 (de) | 2023-05-26 | 2024-05-27 | Elektro-gehäuse |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN120814093A (de) |
| DE (2) | DE102023114024A1 (de) |
| WO (1) | WO2024246017A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69628289T2 (de) | 1995-03-21 | 2004-04-01 | Telefonaktiebolaget L M Ericsson (Publ) | Laminat zum versiegeln von kapseln |
| US20120148892A1 (en) * | 2009-08-18 | 2012-06-14 | Basell Polyolefine Gmbh | Housing for Electrical Power Cells in Electrically Driven Automotive Vehicles |
| DE102012223551A1 (de) * | 2012-12-18 | 2014-06-18 | Robert Bosch Gmbh | Mehrschichtiges Gehäuse für eine Batteriezelle |
| DE102017104711A1 (de) * | 2017-03-07 | 2018-09-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kraftfahrzeug-Hochspannungs-Energiespeicher |
| WO2022227650A1 (zh) * | 2021-04-30 | 2022-11-03 | 国研新能(深圳)技术有限公司 | 电池壳和电池 |
-
2023
- 2023-05-26 DE DE102023114024.8A patent/DE102023114024A1/de not_active Withdrawn
-
2024
- 2024-05-27 CN CN202480014641.4A patent/CN120814093A/zh active Pending
- 2024-05-27 DE DE112024001405.4T patent/DE112024001405A5/de active Pending
- 2024-05-27 WO PCT/EP2024/064556 patent/WO2024246017A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69628289T2 (de) | 1995-03-21 | 2004-04-01 | Telefonaktiebolaget L M Ericsson (Publ) | Laminat zum versiegeln von kapseln |
| US20120148892A1 (en) * | 2009-08-18 | 2012-06-14 | Basell Polyolefine Gmbh | Housing for Electrical Power Cells in Electrically Driven Automotive Vehicles |
| DE102012223551A1 (de) * | 2012-12-18 | 2014-06-18 | Robert Bosch Gmbh | Mehrschichtiges Gehäuse für eine Batteriezelle |
| DE102017104711A1 (de) * | 2017-03-07 | 2018-09-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kraftfahrzeug-Hochspannungs-Energiespeicher |
| WO2022227650A1 (zh) * | 2021-04-30 | 2022-11-03 | 国研新能(深圳)技术有限公司 | 电池壳和电池 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023114024A1 (de) | 2024-11-28 |
| CN120814093A (zh) | 2025-10-17 |
| DE112024001405A5 (de) | 2026-01-22 |
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