EP4282023A1 - Batteriemodul - Google Patents
BatteriemodulInfo
- Publication number
- EP4282023A1 EP4282023A1 EP22835271.2A EP22835271A EP4282023A1 EP 4282023 A1 EP4282023 A1 EP 4282023A1 EP 22835271 A EP22835271 A EP 22835271A EP 4282023 A1 EP4282023 A1 EP 4282023A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery cells
- plate
- receiving openings
- individual battery
- battery module
- 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
Links
- 239000002826 coolant Substances 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 3
- 238000005338 heat storage Methods 0.000 claims description 2
- 239000011232 storage material Substances 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 15
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 238000004382 potting Methods 0.000 description 5
- 229940125773 compound 10 Drugs 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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
- H01M50/244—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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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
-
- 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
- H01M50/291—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 their shape
-
- 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 with a module housing, which has receiving openings for individual battery cells, of the type defined in more detail in the preamble of claim 1.
- Battery modules with a module housing for accommodating individual battery cells are known from the prior art.
- a battery can be found in DE 102 23 782 B4, which essentially consists of a battery or
- Module housing consists, in which receiving openings are introduced between two opposite sides. Individual battery cells, in this case cylindrical individual battery cells, can be inserted into these receiving openings. They are appropriately cooled in the module housing, which is also referred to as jacket cooling.
- CN 108 281 588 A discloses a structure in which the individual cells stand on a cooling plate without a holder and are cooled by this cooling plate.
- the problem with such structures is that the cooling in the area of each of the individual battery cells only takes place on one side, so that relatively inhomogeneous cooling takes place. If the individual battery cell is now charged, in particular charged quickly, then such rapid charging leads to relatively high heat losses in the individual battery cell. If these are not dissipated evenly and homogeneously, this can contribute to premature aging of the cell and negatively affect its capacity.
- DE 10 2016 219 302 A1 also describes a battery in which the individual battery cells are contacted and held via a plate, with cooling medium then being able to flow around these individual battery cells in a free space below the plate.
- the object of the present invention is now to specify an improved battery module with a module housing and individual battery cells, which on the one hand ensures very uniform cooling of the battery individual cells and on the other hand creates the possibility of a simple and efficient construction.
- this object is achieved by a battery module having the features in claim 1, and here in particular in the characterizing part of claim 1.
- Advantageous refinements and developments of the battery module according to the invention result from the dependent subclaims.
- the module housing in the battery module according to the invention, provision is accordingly made for the module housing to have receiving openings for the individual battery cells between two opposite sides, with regions through which a cooling medium flows being arranged around these receiving openings in the module housing, so that jacket cooling of the individual battery cells can take place at least in sections.
- a plate is arranged on one side of the module housing, which plate can form a base plate, for example. This has openings corresponding to the dimensions of the individual battery cells, in contrast to which the receiving openings have a larger cross section than the openings at least in sections, so that the individual battery cells can therefore be inserted loosely into these receiving openings.
- the individual battery cells themselves have stops for abutment in a tapered part of the receiving opening and/or on the plate.
- the individual battery cells can always be positioned precisely in relation to the module housing or the plate without any complex measures. If the plate is designed as a base plate, for example, the individual battery cells protrude through the openings in the plate by a portion that can be predetermined by the stops, so that the cross sections in a space underneath the plate can be easily and precisely maintained in the desired manner.
- the stops are formed from a self-adhesive material.
- they can be glued directly to the outside of the individual battery cells, so that they can be inserted into the module housing up to these glued-on stops during assembly.
- the stops are in the form of an adhesive tape, in particular in the form of a foam adhesive tape.
- the stops on the individual battery cells can be omitted, with precise positioning in relation to the housing or the base plate of the cooling jacket being achieved in that the individual battery cells are supported on a support plate that can be adjusted in height below the plate, which is serves as a stop in this case.
- the plate itself can be designed as a cooled plate, in particular as a cooled base plate.
- a cooled plate which is also known in principle from previous structures of batteries or battery modules, can also be used here.
- end plate cooling can also be implemented in order to ensure even more uniform temperature control of the individual battery cells. This significantly increases the rapid charging capability of such a battery module.
- the receiving openings themselves can be designed in such a way that they taper conically in the direction of the plate. This allows the individual battery cells to be inserted into the receiving openings in a particularly simple and efficient manner. Alternatively, they can also have a constant cross section, which is then at least so much larger over the entire height than the corresponding opening, so that the stops, which then preferably abut the plate, fit into the area of the receiving opening.
- the individual battery cells can be fixed in the receiving opening by means of a thermally conductive adhesive, regardless of whether it tapers conically or is designed with a constant cross section.
- this thermally conductive adhesive reliably secures the individual battery cells in their position and, on the other hand, thanks to its thermally conductive properties, allows jacket cooling of the individual battery cells via the areas in the module housing through which the cooling medium can flow.
- a further extraordinarily favorable embodiment of the battery module according to the invention can also provide that the individual battery cells are cast with a casting compound on the side of the module housing facing away from the plate.
- Such casting compounds are common in the field of electronics and ensure, on the one hand, a secure fixation and, on the other hand, an electrical insulation of the structure.
- the potting compound can, for example, be closed with a battery cover and cast directly with it. Electronics can also be arranged and cast in the area of the casting compound.
- Another extraordinarily favorable embodiment of the battery module according to the invention provides, when using the potting compound, that it has or consists of a latent heat storage material.
- the potting compound then forms a latent heat store, so it can absorb heat very well up to a certain temperature and can hold it for a relatively long period of time. This ensures a further improvement in cooling and thus homogenization of the temperature, especially when the individual battery cell heats up considerably, as is the case, for example, during a rapid charging process.
- By improving the homogenization of the temperature i.e. the improved Due to the temperature distribution within the individual battery cell, a relatively high charging power is possible, which helps to significantly reduce the time it takes for the battery to be fully charged.
- the structure of the battery module according to the invention is suitable in one or more of the described embodiments for any type of individual battery cell.
- the individual battery cells can therefore be, for example, prismatic individual battery cells in a film bag, so-called pouch cells, or also prismatic individual battery cells in a hard case.
- the individual battery cells in the battery module according to the invention have a cylindrical shape according to a very advantageous development of the same. Such cylindrical cells can be easily and efficiently positioned in such a battery module.
- Both the receiving openings and the openings with a cylindrical and/or conical shape can be produced in a correspondingly simple manner in order to realize a very cost-effective design of the battery module.
- the module housing itself can be produced in particular as an injection molded part from a plastic material, which can have increased thermal conductivity through appropriate additives.
- the plate or base plate can preferably be made of a metallic material.
- FIG. 1 shows a schematic cross section through a detail from the battery module according to the invention.
- FIG. 2 shows a view analogous to that in FIG. 1 in an alternative embodiment.
- the section from a battery module 1 shown in FIG. 1 shows a module housing 2 in which two individual battery cells 3 are mounted accordingly.
- the module housing 2 has, on its lower side here, a plate or base plate designated 4, which receives openings 5, which correspond to the shape of the individual battery cells 3.
- These receiving openings 6 have a larger cross section, in Case of cylindrical single battery cells 3 has a larger diameter than the openings 5. In the exemplary embodiment in FIG. 1 , they taper conically, so that their cross section increasingly decreases in the direction of the plate 5 .
- the individual battery cells 3 are provided with a stop 7 in the form of a foam adhesive tape, which serves as a stop 7, so that the individual battery cells can only be inserted up to a predetermined depth into the receiving openings 6, which are conical here.
- the position of the individual battery cells 3 within the module housing 2 and thus ultimately within the battery module 1 with regard to their installation height is firmly specified by these stops 7 .
- the individual battery cells 3 there is a cavity which serves, for example, for the outflow of venting gases if one or more of the individual battery cells 3 thermally run away and blow off gases. Due to the defined installation height of the individual battery cells 3 above the stops 7, the cross section that can flow through in this space can always be reliably guaranteed.
- the individual battery cells 3 When the individual battery cells 3 are inserted into the receiving openings 5 , they are bonded to the module housing 2 with a thermally conductive adhesive 8 . This makes it possible to cool them via areas 9 in the module housing in the region of their jacket through which a cooling medium can flow. This jacket cooling in addition to cooling via the base plate 4 allows a very homogeneous temperature control of the individual battery cells 3 even with a high heat input, such as occurs during fast charging, for example.
- a potting compound 10 shown with irregular cross-hatching.
- the ends of the battery are potted over this before a cover plate 11 is fitted.
- the potting compound 10 itself can be designed as a latent heat store or have a latent heat store material. It is then used in addition to the homogeneous temperature control of the battery module 1.
- the previously mentioned cavity below the plate 4 is closed off by a further plate-shaped cover, which can be the underside of a housing of the battery module 1, for example.
- the plate-shaped cover 12 could also be an underride guard for a vehicle if the battery is used in the floor area of a vehicle. This very efficient structure of the battery module 1 can now be further varied.
- the receiving openings 6 no longer taper conically, but are also cylindrical, for example in the case of cylindrical individual battery cells 3 .
- the stops 7 then no longer come into contact at a defined point of the receiving openings 6 on the module housing 2, but directly on the base plate 4. Otherwise, the gap between the module housing 2 and the individual battery cells 3 in the area of the receiving openings 6 is sealed with the thermally conductive adhesive 8 expires and the structure is completed via a casting compound 10, preferably designed as a latent heat store.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021006208.6A DE102021006208B3 (de) | 2021-12-16 | 2021-12-16 | Batteriemodul |
| PCT/EP2022/085041 WO2023110637A1 (de) | 2021-12-16 | 2022-12-08 | Batteriemodul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4282023A1 true EP4282023A1 (de) | 2023-11-29 |
Family
ID=84785350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22835271.2A Pending EP4282023A1 (de) | 2021-12-16 | 2022-12-08 | Batteriemodul |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20240372199A1 (de) |
| EP (1) | EP4282023A1 (de) |
| JP (1) | JP7645405B2 (de) |
| KR (1) | KR102840753B1 (de) |
| CN (1) | CN116918139A (de) |
| DE (1) | DE102021006208B3 (de) |
| WO (1) | WO2023110637A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023004712B3 (de) * | 2023-11-17 | 2024-12-19 | Mercedes-Benz Group AG | Messverfahren zur Erfassung der Dehnung in einem Batteriemodul |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4122553B2 (ja) * | 1997-11-21 | 2008-07-23 | 豊田合成株式会社 | 棒状体支持箱 |
| DE10223782B4 (de) | 2002-05-29 | 2005-08-25 | Daimlerchrysler Ag | Batterie mit wenigstens einer elektrochemischen Speicherzelle und einer Kühleinrichtung und Verwendung einer Batterie |
| JP4846984B2 (ja) * | 2003-07-01 | 2011-12-28 | パナソニック株式会社 | 角筒状電池とその製造方法 |
| DE102009035487A1 (de) * | 2009-07-31 | 2011-02-03 | Daimler Ag | Batterie und Verfahren zu deren Herstellung |
| JP5512446B2 (ja) | 2010-07-27 | 2014-06-04 | 三洋電機株式会社 | 電池パック |
| DE102012108767B4 (de) * | 2012-09-18 | 2022-04-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Batteriemodul |
| JP6187351B2 (ja) | 2014-03-27 | 2017-08-30 | 豊田合成株式会社 | 電池モジュールおよびその製造方法 |
| JP6137140B2 (ja) * | 2014-11-25 | 2017-05-31 | トヨタ自動車株式会社 | 組電池及びその製造方法 |
| US9620830B2 (en) | 2014-12-16 | 2017-04-11 | Xinen Technology Hong Kong Company, Ltd. | Vehicle battery module with cooling and safety features |
| CN205141099U (zh) | 2015-12-02 | 2016-04-06 | 北京无极合一新能源科技有限公司 | 电池组及电动汽车电池热管理系统 |
| DE102016219302A1 (de) | 2016-10-05 | 2018-04-05 | Continental Automotive Gmbh | Energiezellenhaltevorrichtung für ein Kraftfahrzeug |
| JP6583219B2 (ja) | 2016-11-15 | 2019-10-02 | トヨタ自動車株式会社 | 電池モジュール |
| DE102017208754A1 (de) * | 2017-05-23 | 2018-11-29 | Mahle International Gmbh | Batteriesystem für ein Elektrofahrzeug |
| JP6798432B2 (ja) | 2017-06-20 | 2020-12-09 | トヨタ自動車株式会社 | 組電池、電池モジュール及び組電池の製造方法 |
| CN108281588A (zh) | 2018-03-20 | 2018-07-13 | 天臣新能源研究南京有限公司 | 一种新型带流道支架结构的液冷模组 |
| KR102340419B1 (ko) * | 2018-09-21 | 2021-12-15 | 주식회사 엘지에너지솔루션 | 모듈 버스바를 포함하는 배터리 모듈 |
| KR102640329B1 (ko) * | 2018-10-19 | 2024-02-22 | 삼성에스디아이 주식회사 | 배터리 모듈 |
| DE102019211359A1 (de) | 2018-11-30 | 2020-06-04 | Robert Bosch Gmbh | Batteriezellenhalter sowie Batteriesystem |
| DE102019003882A1 (de) * | 2019-06-03 | 2020-01-02 | Daimler Ag | Batteriemodul für einen elektrischen Energiespeicher mit einer Batteriezellenhalteeinrichtung und einer Zellkühleinrichtung |
| CN115398711B (zh) | 2020-04-24 | 2025-10-24 | Tvs电机股份有限公司 | 具有电池保持器组件的电池模块 |
-
2021
- 2021-12-16 DE DE102021006208.6A patent/DE102021006208B3/de active Active
-
2022
- 2022-12-08 CN CN202280018906.9A patent/CN116918139A/zh active Pending
- 2022-12-08 KR KR1020237033114A patent/KR102840753B1/ko active Active
- 2022-12-08 JP JP2023575810A patent/JP7645405B2/ja active Active
- 2022-12-08 US US18/561,093 patent/US20240372199A1/en active Pending
- 2022-12-08 EP EP22835271.2A patent/EP4282023A1/de active Pending
- 2022-12-08 WO PCT/EP2022/085041 patent/WO2023110637A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023110637A1 (de) | 2023-06-22 |
| CN116918139A (zh) | 2023-10-20 |
| KR102840753B1 (ko) | 2025-08-05 |
| DE102021006208B3 (de) | 2023-06-01 |
| JP7645405B2 (ja) | 2025-03-13 |
| KR20230150363A (ko) | 2023-10-30 |
| JP2024521414A (ja) | 2024-05-31 |
| US20240372199A1 (en) | 2024-11-07 |
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