WO2024033334A1 - Boîtier de batterie pour au moins deux modules de batterie - Google Patents

Boîtier de batterie pour au moins deux modules de batterie Download PDF

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Publication number
WO2024033334A1
WO2024033334A1 PCT/EP2023/071874 EP2023071874W WO2024033334A1 WO 2024033334 A1 WO2024033334 A1 WO 2024033334A1 EP 2023071874 W EP2023071874 W EP 2023071874W WO 2024033334 A1 WO2024033334 A1 WO 2024033334A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
housing
partition
battery modules
battery housing
Prior art date
Application number
PCT/EP2023/071874
Other languages
German (de)
English (en)
Inventor
Tobias Fackler
Bernd Schoellkopf
Original Assignee
Mercedes-Benz Group 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 Mercedes-Benz Group AG filed Critical Mercedes-Benz Group AG
Publication of WO2024033334A1 publication Critical patent/WO2024033334A1/fr

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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller

Definitions

  • Battery housing for at least two battery modules
  • the invention relates to a battery housing for at least two battery modules or at least two rows of battery modules according to the type defined in more detail in the preamble of claim 1.
  • Battery housings in various designs for accommodating battery modules are known from the prior art.
  • DE 10 2018 123651 A1 describes a polymer battery frame for battery packs.
  • DE 10 2011 087 040 A1 describes a structure for electrically contacting energy storage modules with two electrical connection terminals.
  • the applicant's unpublished application with the German file number 102021 005 097 describes a battery housing with a partition wall assembly, which is designed for electrical and in particular thermal insulation of individual areas that can accommodate battery modules within a battery housing.
  • the partition wall assembly can, for example, have plastic materials and mineral insulating materials.
  • the DE 20201 104 761 U1 shows a traction battery with a partition assembly. This includes supply lines and cables. They are fixed using plastic retaining clips.
  • the DE 10 2018209 271 A1 describes an installation device for lines in a high-voltage battery for a vehicle.
  • the cables are cast directly into the plastic surrounding them.
  • the object of the present invention is to provide a battery housing with an improved separation between individual areas for accommodating battery modules, which in particular enables simple and efficient assembly.
  • this object is achieved by a battery housing with the features in claim 1, and here in particular in the characterizing part of claim 1.
  • the partition assembly comprises a partition made of plastic.
  • the solution according to the invention provides that the plastic material of the partition is used, to embed a data and/or control line in this material.
  • the plastic material of the partition offers the ideal opportunity to accommodate the cable and immediately electrically insulate it.
  • the data and/or control line then runs within the partition and can be installed together with it in a correspondingly simple and efficient manner.
  • complex cabling which has to be fixed in the battery housing or on a partition assembly, there is a simple component embedded in the material of the partition.
  • the battery housing according to the invention further provides that the partition is connected to one of the housing parts via a deformable material as tolerance compensation.
  • a deformable material which can in particular be a felt-like material, can be glued to the side of the partition facing the one housing part, so that when the partition is pressed between the The upper housing part and the lower housing part compensate for potential manufacturing tolerances and still reliably separate the areas separated by the partition from one another.
  • the deformable material can be designed to compensate for tolerances between the partition and the upper housing part, for example the housing cover.
  • the partition can then be connected to the lower housing part accordingly and the housing cover can be placed on the partition with the appropriate tolerance compensation via the deformable material to close the battery housing.
  • the at least one data and/or control line is designed as a solid metallic component. It can, for example, be designed as a sheet metal strip made of aluminum, copper or another metallic material. Instead of complex cables, it is then sufficient to inject this solid metal component over the length of the entire partition when producing the partition, for example by injection molding, in order to ensure the integration of the data and/or control line simply and efficiently and this through this Electrically insulate the material of the partition wall.
  • the data and/or control line can have contact areas for contacting connection elements, such as in particular cables.
  • connection elements such as in particular cables.
  • Such contact areas can be led out of the partition in the longitudinal direction, in particular at the ends of the partition, or possibly also in the middle of the partition.
  • a plug contact can be attached, which is riveted, soldered or formed in one piece with the component of the data and/or control line.
  • Electrical cables can then be contacted in this area, which can be connected to the suitable elements or electronic components of the individual battery modules on the one hand and a central battery control on the other hand, in order to route information from the battery modules to the battery management via the data and/or control line vice versa.
  • the structure can be implemented as a data bus, particularly preferably as a serial data bus.
  • the partition assembly has at least one metallic element, which is connected to one of the housing parts, here in contrast to the one just described, preferably - but not necessarily - to the lower housing part, or as part of this housing part is trained.
  • the partition wall is in turn designed to interact with the at least one metallic element in such a way that it is held in position within this housing part.
  • the metallic element can, for example, consist of pins, metal strips or the like welded onto the housing part, which interact with corresponding recesses or the corresponding outer shape of the partition in such a way that it can be plugged onto the at least one metallic element or inserted between several metallic elements. Plugging on is conceivable in the sense that the fit is designed such that the partition remains on the metallic element of the partition assembly until the cover is closed in order to press the partition assembly between the cover and the lower part of the housing. A fit in the area of a transition fit between a clearance fit and a press fit is sufficient for this. Alternatively, a press fit or locking of the partition with the at least one metallic element would also be conceivable or, in principle, the use of screws as a metallic element, which, together with the corresponding screw nuts, are suitable for fixing the partition during assembly.
  • the at least one metallic element is designed as a fin running in the longitudinal direction of the battery housing or in the form of several fins arranged one behind the other in the longitudinal direction of the battery housing.
  • a fin which preferably protrudes in the plane that forms the central plane of the partition, now allows the partition to be attached very easily and efficiently, especially if it has a groove or a slot on its later housing part with the fin or fins facing side is formed.
  • the fin then additionally stabilizes the partition over its length or part of its length, so that it can be made correspondingly thinner, which saves installation space, weight and material costs.
  • the fin itself can be designed as part of a support that stabilizes the housing part.
  • the fin alone or in particular with a foot of the fin can therefore be implemented as a support which accordingly stabilizes the housing part, in particular the lower housing part.
  • this housing part can be made from relatively thin sheet metal in the longitudinal direction, even with long battery housings, which can then be welded to a foot carrying the fin in order to stabilize the structure, especially in the longitudinal direction.
  • the fin can then cooperate with the bulkhead in the sense described above to form the bulkhead assembly.
  • a further very advantageous embodiment of the battery housing according to the invention can further provide that the side surfaces of the partition facing the battery modules are provided with electrical and/or thermal insulation. This makes it possible to achieve insulation of the individual areas within the battery housing that accommodate the battery modules via the partition wall of the partition wall assembly. If, for example, thermal runaway of individual battery cells occurs in one of the battery modules or in a series of battery modules, which typically leads to thermal runaway of the entire battery module, then such thermal insulation in the area of the partition wall can cause the thermal event to spread to neighboring battery modules be prevented or at least delayed.
  • the electrical and/or thermal insulation has mineral material.
  • a mineral material as described, for example, in the applicant's unpublished application mentioned at the beginning, can be purchased on the market, for example, in the form of thin layers and applied, in particular glued, to the sides of the partition.
  • Fig. 2 is a sectional view along line II-II in Fig. 1 with a partition assembly of the battery housing according to the invention.
  • a battery housing 1 can be seen in a view from above.
  • the battery housing includes a lower housing part 2 and an upper housing part 3, which is removed in the illustration in FIG. 1 and can only be seen in FIG. 2.
  • this entire battery consists of two rows of battery modules, each of which consists of two battery modules arranged one behind the other in the longitudinal direction. These battery modules are labeled 6.1 and 6.2 in one row 6 and 7.1 and 7.2 in the other row 7.
  • battery modules 6.1, 6.2 and 7.1, 7.2 can be separated from one another by optional bulkheads 8, whereby instead of these bulkheads 8 there are also permeable cross members, for example in a kind of truss construction to stabilize the battery housing 1 or here the lower housing part 2 can be used.
  • a partition wall assembly 9 is arranged, which can be seen in more detail in the sectional view of Figure 2.
  • the Partition wall assembly 9 extends between the lower housing 2, which here is made of sheet steel, for example, and the upper housing part 3, which can also be made of sheet steel, and which is also referred to as a housing cover.
  • a metallic component 10 is arranged, which runs in the longitudinal direction L, i.e. into the plane of the sheet in the illustration in FIG.
  • the partition 13 is now placed onto the fin(s) 12 and is provided with a corresponding slot or groove for the fin 12.
  • the partition 13 can therefore simply be plugged onto the fin 12 in the open battery housing 1 and completes the partition wall assembly 9.
  • the partition 13 is provided with a deformable material 14 for tolerance compensation.
  • a felt-like material can be glued to the surface of the partition 13 facing the upper housing part 3.
  • At least one data and/or control line 15 is integrated into the plastic material of the partition 13.
  • This data and/or control line 15 can be formed, for example, by a strip of aluminum sheet. It can then be used in the manner of a serial bus in order to be connected to control units of the individual battery modules 6.1, 6.2, 7.1, 7.2 on the one hand via cables 16 visible in the illustration in FIG. 1 and on the other hand to the battery management system 5 via cables 17.
  • various data can be transmitted, for example temperatures, voltages and the like, which help in the battery management system 5 to control the battery, for example with regard to its electrical properties, potential cooling and/or heating of the individual battery modules or the like.
  • This arrangement of the connections to the control units of the individual battery modules 6.1, 6.2, 7.1, 7.2, which are arranged in series one behind the other, is often also referred to as a daisy chain.
  • a plurality of such lines can be provided, for example, and so it is optional 2, a first data and/or control line 15 on one side of the at least one fin 12 and a second on the other side.
  • the partition wall assembly 9 should also have good insulating properties, in particular good thermal insulating properties.
  • it can be provided with a suitable material 18 on the sides of the partition 13 facing the two battery modules 6.2 and 7.2 in the illustration in FIG.
  • the material 18 can, for example, be a coating on the partition 13.
  • paints are known which foam under thermal influence and thereby increase their thermal insulating properties.
  • mineral layers would also be conceivable, which consist, for example, of mica or similar materials, which are available on the market as thin paper- or cardboard-like layers and can be glued to the partition 13. In principle, these materials could of course also be combined, for example a glued-on layer of mineral insulating material, which can then be provided with an appropriate coating or paint that foams under the influence of temperature.

Landscapes

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

Abstract

L'invention concerne un boîtier de batterie (1) pour au moins deux modules de batterie (6.1, 6.2, 7.1, 7.2) ou au moins deux rangées (6, 7) de modules de batterie (6.1, 6.2, 7.1, 7.2), chacun des modules de batterie (6.1, 6.2, 7.1, 7.2) ou chaque rangée (6, 7) de modules de batterie (6.1, 6.2, 7.1, 7.2) s'étendant le long d'une direction longitudinale (L), comportant une partie de boîtier inférieure (2) et une partie de boîtier supérieure (3). L'invention est caractérisée par un module de cloison (9) qui s'étend dans la direction longitudinale (L) et dans une direction verticale (H) perpendiculaire à celle-ci entre les parties de boîtier (2, 3), le module de cloison (9) comprenant une cloison (13) en matière plastique dont la matière intègre au moins une ligne de données et/ou de commande (15).
PCT/EP2023/071874 2022-08-12 2023-08-07 Boîtier de batterie pour au moins deux modules de batterie WO2024033334A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022002955.3A DE102022002955A1 (de) 2022-08-12 2022-08-12 Batteriegehäuse für wenigstens zwei Batteriemodule
DE102022002955.3 2022-08-12

Publications (1)

Publication Number Publication Date
WO2024033334A1 true WO2024033334A1 (fr) 2024-02-15

Family

ID=87760342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/071874 WO2024033334A1 (fr) 2022-08-12 2023-08-07 Boîtier de batterie pour au moins deux modules de batterie

Country Status (2)

Country Link
DE (1) DE102022002955A1 (fr)
WO (1) WO2024033334A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0349473B1 (fr) * 1988-06-29 1995-06-14 Accumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. KG Batterie, en particulier pour véhicules automobiles
DE102011087040A1 (de) 2011-11-24 2013-05-29 Bayerische Motoren Werke Aktiengesellschaft Zellkontaktieranordnung für einen Energiespeicher
DE102013015785A1 (de) 2013-09-21 2015-03-26 Daimler Ag Zellblock für eine Batterie
DE102018123651A1 (de) 2017-09-28 2019-03-28 GM Global Technology Operations LLC Polymere batterierahmen und batterie-packs, die diese beinhalten
DE102018209271A1 (de) 2018-06-11 2019-12-12 Bayerische Motoren Werke Aktiengesellschaft Leitungsinstallationseinrichtung für eine Hochvoltbatterie eines Kraftfahrzeugs, Leitungsanordnung, Hochvoltbatterie sowie Kraftfahrzeug
CN111081938A (zh) * 2019-12-31 2020-04-28 杭州星柏新能源科技有限公司 具有减震功能的新能源汽车电池箱

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021104761U1 (de) 2021-09-03 2021-09-22 Kirchhoff Automotive Deutschland Gmbh Traktionsbatterieeinheit
DE102021005097A1 (de) 2021-10-12 2023-04-13 Mercedes-Benz Group AG Trennwandbaugruppe für ein Batteriegehäuse, Batterie und Fahrzeug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0349473B1 (fr) * 1988-06-29 1995-06-14 Accumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. KG Batterie, en particulier pour véhicules automobiles
DE102011087040A1 (de) 2011-11-24 2013-05-29 Bayerische Motoren Werke Aktiengesellschaft Zellkontaktieranordnung für einen Energiespeicher
DE102013015785A1 (de) 2013-09-21 2015-03-26 Daimler Ag Zellblock für eine Batterie
DE102018123651A1 (de) 2017-09-28 2019-03-28 GM Global Technology Operations LLC Polymere batterierahmen und batterie-packs, die diese beinhalten
DE102018209271A1 (de) 2018-06-11 2019-12-12 Bayerische Motoren Werke Aktiengesellschaft Leitungsinstallationseinrichtung für eine Hochvoltbatterie eines Kraftfahrzeugs, Leitungsanordnung, Hochvoltbatterie sowie Kraftfahrzeug
CN111081938A (zh) * 2019-12-31 2020-04-28 杭州星柏新能源科技有限公司 具有减震功能的新能源汽车电池箱

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