CN112350010A - Battery module having a plurality of battery cells and use of such a battery module - Google Patents
Battery module having a plurality of battery cells and use of such a battery module Download PDFInfo
- Publication number
- CN112350010A CN112350010A CN202010789055.0A CN202010789055A CN112350010A CN 112350010 A CN112350010 A CN 112350010A CN 202010789055 A CN202010789055 A CN 202010789055A CN 112350010 A CN112350010 A CN 112350010A
- Authority
- CN
- China
- Prior art keywords
- battery module
- battery
- housing
- clamping element
- battery cells
- 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
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 239000007769 metal material Substances 0.000 claims abstract description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—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
- H01M50/227—Organic material
-
- 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
-
- 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
- H01M50/278—Organic material
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a battery module having a plurality of battery cells (2), in particular lithium-ion battery cells (20), which are accommodated in an interior (3) of a housing (4) of the battery module (1) consisting of plastic (5), wherein the interior (3) is designed to be sealed in a fluid-tight manner with respect to the surroundings (6) of the battery module (1), wherein the battery module (1) further comprises at least one clamping element (7), in particular a metal strip (9), which is designed to mechanically clamp the plurality of battery cells (2) or the housing (4), and which is designed to be constructed from a metal material (8).
Description
Technical Field
The invention relates to a battery module having a plurality of battery cells of the type according to the independent claim. The subject matter of the invention is also the use of such a battery module.
Background
It is known from the prior art that a battery module can be composed of a plurality of individual battery cells, which can be connected to one another in series and/or parallel electrically conductive manner, so that these individual battery cells are connected together to form a battery module.
In addition, such battery modules are connected together to form a battery or a battery system.
It is also known that battery modules comprise a housing made of plastic. Such plastics change their mechanical properties due to changes in environmental conditions, such as temperature or humidity. In particular, the strength decreases and the creep characteristics accelerate as a change in length under constant mechanical load.
Generally, the battery cells are mechanically deformed during their lifetime, so that the deformation applies a mechanical load to the housing of the battery module. Of course, such a housing can also be made of aluminum or steel or similar materials.
Disclosure of Invention
A battery module having a plurality of battery cells, having the features of the independent claim, offers the advantage that deformations of the housing of the battery module can be reliably counteracted. In particular, a separation of the mechanical load-bearing function and the function of the housing seal can be achieved.
To this end, a battery module having a plurality of battery cells is provided. The battery cell is preferably designed as a lithium ion battery cell.
Here, a plurality of battery cells are accommodated in an inner space of a case of the battery module. The housing of the battery module is made of plastic. Furthermore, the interior space is configured in a fluid-tight manner with respect to the surroundings of the battery module.
The battery module also has at least one clamping element made of a metallic material. The clamping element is in particular designed as a metal strip.
The clamping element is designed to mechanically clamp a plurality of battery cells or housings.
Advantageous refinements and improvements of the device specified in the independent claims are possible by means of the measures specified in the dependent claims.
It is to be noted here that the clamping element assumes a mechanical load-bearing function, so that the mechanical properties of the housing of the battery module, which is made of plastic, are not significantly influenced by the environmental conditions. Thus, a relatively inexpensive housing made of plastic can continue to be used.
Furthermore, it is to be noted here that "surround" is also to be understood as meaning that surround also includes a partially surround situation. The fiber composite element can in particular also be arranged, for example, only circumferentially on the longitudinal sides or only circumferentially on the end sides of the battery module.
Advantageously, the at least one clamping element is arranged outside the housing of the battery module. The clamping element is also arranged here around the housing of the battery module. Thereby, the housing of the battery module is mechanically clamped. This configuration provides the advantages of a relatively simple arrangement and a reliable mechanical connection.
It is also advantageous if the at least one clamping element is arranged within the housing of the battery module. In addition, the clamping element is arranged here around a plurality of battery cells of the battery module. Thereby, the plurality of battery cells of the battery module are mechanically clamped. This configuration offers the advantage that a plurality of battery cells can already be mechanically clamped to one another into a unit before being arranged in the housing.
It is to be noted here that the plurality of battery cells are in particular of prismatic design, or the respective housings of the plurality of battery cells are of prismatic design. Furthermore, the battery cells are arranged adjacent to one another with their respective largest side in the longitudinal direction of the battery module.
Advantageously, the battery module also has end plates between which a plurality of battery cells are arranged directly. The at least one clamping element is furthermore arranged around the end plate. This provides the advantage that a reliable mechanical clamping can be constructed and the clamping force can be distributed evenly by means of the end plates. In particular, the battery module has two end plates arranged opposite one another.
In this case, it is furthermore advantageous if the end plates each have a receptacle in which at least one clamping element is accommodated. For example, the end plate can have a deformation (Umformung). In other words, this means that the receptacle is configured as a deformation of the end plate. This offers the advantage that a simple assembly and a secure fixing of the clamping element on the respective end plate is possible.
According to a preferred aspect of the invention, the battery module has a plurality of clamping elements which are arranged at a distance from one another in the height direction of the battery module. The height direction is arranged here perpendicular to the already mentioned longitudinal direction. By virtue of this configuration, the clamping force can be uniformly distributed.
According to a preferred aspect of the invention, the clamping element made of a metallic material is constructed galvanically or lacquered. It is thereby possible in particular to form the electrical insulation, for example by means of painting.
Advantageously, the two ends of the at least one clamping element are connected to one another in a material-locking manner, for example by welding or in a form-locking manner, for example by means of a dovetail connection. This makes it possible to achieve a simpler assembly.
According to one aspect of the invention, the at least one clamping element is an integral component of the housing of the battery module, which housing is made of plastic. The clamping element can be integrated into the housing already during the manufacture of the housing.
The subject matter of the invention is also the use of the battery module according to the invention which has just been described. In this case, the clamping element counteracts a mechanical deformation of the housing of the plurality of battery cells or of the battery module due to a change in volume of the plurality of battery cells.
Drawings
Embodiments of the invention are illustrated in the drawings and are explained in detail in the following description.
The invention shows that:
figure 1 shows a first embodiment of a battery module according to the present invention,
fig. 2 shows a second embodiment of the battery module according to the present invention, and
fig. 3 shows a third embodiment of the battery module according to the present invention.
Detailed Description
The embodiments of the battery module 1 according to the invention shown in fig. 1 to 3 in each case are to be explained in common first.
The battery module 1 has a plurality of battery cells 2, which are not visible in fig. 1 and are shown in fig. 2 and 3 as a function of position, and which are in particular embodied as lithium-ion battery cells 20.
The battery cells 2 are accommodated in an interior 3 of a housing 4 of the battery module 1, which is likewise not visible in fig. 1 and is only visible in fig. 2 and 3. The housings 4 of the battery modules 1 are each formed from plastic 5.
The interior 3 is designed in a fluid-tight manner in relation to the surroundings 6 of the battery module 1.
Furthermore, the battery module 1 comprises a clamping element 7, which is made of a metallic material 8. The clamping element 7 is designed here for mechanically clamping the plurality of battery cells 2 of the housing 4. The clamping element 7 can be designed in particular as a metal strip 9.
According to the embodiment shown in fig. 1, the clamping element 7 is arranged outside the housing 4 of the battery module 1 and furthermore is arranged around the housing 4 of the battery module 1, so that the housing 4 of the battery module 1 is mechanically clamped.
According to the embodiment shown in fig. 2, the clamping element 7 is arranged within the housing 4 of the battery module 1 and furthermore surrounds the plurality of battery cells 2, so that the plurality of battery cells 2 are mechanically clamped. It is also noted here that the housing 4 of the battery module 1 is only partially shown, so that the clamping element 7 can be seen.
According to the embodiment shown in fig. 3, the clamping element 7 is likewise arranged within the housing 4 of the battery module 1 and furthermore surrounds the plurality of battery cells 2, so that the plurality of battery cells 2 are mechanically clamped. It is also noted here that the housing 4 of the battery module 1 is only partially shown, so that the clamping element 7 can be seen.
In the exemplary embodiment according to fig. 2 and 3, the battery module 1 also has, for example, two end plates 10, between which the plurality of battery cells 2 is arranged directly and around which the at least one clamping element 7 surrounds. Furthermore, the end plates 10 can each have a receptacle 11 in which the clamping element 7 is received.
The second and third exemplary embodiments of the battery module 1 according to fig. 2 and 3 differ in that the battery module 1 according to fig. 2 has a single clamping element 7 of comparatively wider design, and the battery module 1 according to fig. 3 has two clamping elements 7 arranged at a distance from one another in the height direction 12 of the battery module 1.
Claims (10)
1. A battery module having a plurality of battery cells (2), in particular lithium-ion battery cells (20), which are accommodated in an interior space (3) of a housing (4) of the battery module (1) consisting of plastic (5), wherein the interior space (3) is configured in a fluid-tight manner in relation to the surroundings (6) of the battery module (1), characterized in that the battery module (1) further comprises at least one clamping element (7), in particular a metal band (9), which is configured to mechanically clamp the plurality of battery cells (2) or the housing (4), and which is configured from a metal material (8).
2. The battery module according to the preceding claim 1, characterized in that the at least one clamping element (7) is arranged outside the housing (4) of the battery module (1) and around the housing (4) of the battery module (1), whereby the housing (4) of the battery module (1) is mechanically clamped.
3. The battery module according to claim 1, characterized in that the at least one clamping element (7) is arranged within the housing (4) of the battery module (1) and around the plurality of battery cells (2) such that the plurality of battery cells (2) is mechanically clamped.
4. A battery module according to the preceding claim 3, characterized in that the battery module (1) further has end plates (10) between which the plurality of battery cells (2) is arranged directly and the at least one clamping element (7) is further arranged around the end plates (10).
5. The battery module according to claim 4, characterized in that the end plates (10) each have a receptacle (11) in which the at least one clamping element (7) is received.
6. The battery module according to any one of the preceding claims 1 to 5, characterized in that the battery module (1) has a plurality of clamping elements (7) which are arranged spaced apart from one another in the height direction (12) of the battery module (1).
7. The battery module according to any one of the preceding claims 1 to 6, characterised in that the clamping element (7) consisting of a metallic material (8) is constructed galvanically or lacquerically.
8. The battery module according to any one of the preceding claims 1 to 7, characterized in that the two ends of the at least one clamping element (7) are connected to one another in a material-locking manner, for example by welding or form-locking, for example by means of a dovetail connection.
9. The battery module according to one of the preceding claims 1 to 8, characterized in that the at least one clamping element (7) is an integral component of a housing (4) of the battery module (1) consisting of plastic (5).
10. Use of a battery module (1) according to any of the preceding claims, characterized in that the clamping element (7) reacts to a mechanical deformation of the plurality of battery cells (2) or of the housing (4) of the battery module (1) due to a volume change of the plurality of battery cells (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019211909.3 | 2019-08-08 | ||
| DE102019211909.3A DE102019211909A1 (en) | 2019-08-08 | 2019-08-08 | Battery module with a plurality of battery cells and use of such a battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112350010A true CN112350010A (en) | 2021-02-09 |
Family
ID=74188314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010789055.0A Pending CN112350010A (en) | 2019-08-08 | 2020-08-07 | Battery module having a plurality of battery cells and use of such a battery module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112350010A (en) |
| DE (1) | DE102019211909A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295937A (en) * | 2021-05-04 | 2022-11-04 | 奥迪股份公司 | Module case, battery module, side plate unit, and method of providing battery module |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB326389A (en) * | 1929-04-26 | 1930-03-13 | Archibald Parker Welch | Improvements in carriers for electric accumulators and the like |
| US20040137321A1 (en) * | 2002-11-27 | 2004-07-15 | Jean-Francois Savaria | Casing for an energy storage device |
| CN1992385A (en) * | 2005-09-05 | 2007-07-04 | 三星Sdi株式会社 | Battery module having an improved unit battery assembly coupling structure |
| CN202758941U (en) * | 2012-01-09 | 2013-02-27 | 苏州纳新新能源科技有限公司 | Multi-cell lithium ion battery |
| JP2014049269A (en) * | 2012-08-31 | 2014-03-17 | Hitachi Ltd | Solid polymer fuel cell stack |
| DE102015210122A1 (en) * | 2015-06-02 | 2016-12-08 | Robert Bosch Gmbh | Device and method for clamping battery cells and battery case, battery pack, battery module and vehicle |
| CN108878702A (en) * | 2018-06-05 | 2018-11-23 | 中航锂电（洛阳）有限公司 | Battery modules |
| CN109148993A (en) * | 2018-08-15 | 2019-01-04 | 北京海博思创科技有限公司 | Cell apparatus and new-energy automobile |
| CN208849013U (en) * | 2018-09-20 | 2019-05-10 | 北京长城华冠汽车科技股份有限公司 | End plate and battery modules |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017206358A1 (en) * | 2017-04-12 | 2018-10-18 | VW-VM Forschungsgesellschaft mbH & Co. KG | Modular battery with improved safety features |
-
2019
- 2019-08-08 DE DE102019211909.3A patent/DE102019211909A1/en active Pending
-
2020
- 2020-08-07 CN CN202010789055.0A patent/CN112350010A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB326389A (en) * | 1929-04-26 | 1930-03-13 | Archibald Parker Welch | Improvements in carriers for electric accumulators and the like |
| US20040137321A1 (en) * | 2002-11-27 | 2004-07-15 | Jean-Francois Savaria | Casing for an energy storage device |
| CN1992385A (en) * | 2005-09-05 | 2007-07-04 | 三星Sdi株式会社 | Battery module having an improved unit battery assembly coupling structure |
| CN202758941U (en) * | 2012-01-09 | 2013-02-27 | 苏州纳新新能源科技有限公司 | Multi-cell lithium ion battery |
| JP2014049269A (en) * | 2012-08-31 | 2014-03-17 | Hitachi Ltd | Solid polymer fuel cell stack |
| DE102015210122A1 (en) * | 2015-06-02 | 2016-12-08 | Robert Bosch Gmbh | Device and method for clamping battery cells and battery case, battery pack, battery module and vehicle |
| CN108878702A (en) * | 2018-06-05 | 2018-11-23 | 中航锂电（洛阳）有限公司 | Battery modules |
| CN109148993A (en) * | 2018-08-15 | 2019-01-04 | 北京海博思创科技有限公司 | Cell apparatus and new-energy automobile |
| CN208849013U (en) * | 2018-09-20 | 2019-05-10 | 北京长城华冠汽车科技股份有限公司 | End plate and battery modules |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295937A (en) * | 2021-05-04 | 2022-11-04 | 奥迪股份公司 | Module case, battery module, side plate unit, and method of providing battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019211909A1 (en) | 2021-02-11 |
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