CN111009622A - Battery pack case and battery pack - Google Patents
Battery pack case and battery pack Download PDFInfo
- Publication number
- CN111009622A CN111009622A CN201910922727.8A CN201910922727A CN111009622A CN 111009622 A CN111009622 A CN 111009622A CN 201910922727 A CN201910922727 A CN 201910922727A CN 111009622 A CN111009622 A CN 111009622A
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- CN
- China
- Prior art keywords
- housing
- wall
- battery
- housing element
- battery pack
- 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.)
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 45
- 238000009413 insulation Methods 0.000 claims abstract description 21
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 9
- 238000003466 welding Methods 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
A battery pack housing and a battery pack. The invention relates to a battery housing of a battery pack (100) comprising a plurality of battery cells, in particular lithium ion battery cells, having: a first housing element (21) and a second housing element (22) which together form a receiving space (3) which is designed to receive the plurality of battery cells, wherein the first housing element (21) and/or the second housing element (22) each comprise an inner wall element (4) and an outer wall element (5) which are spaced apart from one another by means of at least one spacer element (11, 16) while forming an insulation space (121, 122) which is designed to thermally insulate the insulation space (2) from the surroundings (6).
Description
Technical Field
The starting point of the invention is a battery housing of a battery comprising a plurality of battery cells according to the preamble of the independent claim.
The invention also relates to a battery pack having such a battery pack housing.
Background
Known from the prior art are: the battery module may consist of a plurality of individual battery cells, which may be electrically connected in series and/or in parallel with each other.
Further, one battery pack may include a plurality of such battery module.
Disclosure of Invention
The battery housing of a battery comprising a plurality of battery cells with the features of the independent claim provides the following advantages: reliable thermal insulation of the receiving space in which the plurality of battery cells are received is constructed.
It is thereby possible to: the receiving space of the battery housing is thermally insulated from the surroundings of the battery housing, so that cooling of the battery cells received in the receiving space may be slowed, whereby the operating temperature of, for example, medium-temperature battery cells or solid-state battery cells may be maintained, in particular, over a longer time interval.
Furthermore, it is thus also possible: by means of the thermal insulation of the receiving space from the surroundings, an undesirable heating of, for example, a lithium-ion battery cell via thermal radiation, for example due to a heated road or parking space, is reduced.
Thus, overall, the operating temperature of the respective battery cells, such as lithium ion battery cells, medium-temperature battery cells or solid-state battery cells, can be maintained for a longer time even under summer or winter environmental conditions.
For this purpose, a battery housing of a battery pack is provided, wherein the battery pack preferably can comprise a plurality of battery cells, in particular lithium ion battery cells.
The battery housing has a first housing element and a second housing element, which together form a receiving space for receiving a plurality of battery cells.
The first housing element and/or the second housing element further comprise an inner wall element and an outer wall element, respectively.
The inner wall element and the outer wall element are spaced apart from one another by means of at least one spacer element while forming an insulation space. The insulation space is designed to thermally insulate the receiving space from the surroundings of the battery pack.
Advantageous embodiments and improvements of the device specified in the independent claims are possible by the measures mentioned in the dependent claims.
In particular, the inner wall element of the first housing element or of the second housing element is arranged toward the receiving space of the battery housing, while the outer wall element of the first housing element or of the second housing element is arranged toward the surroundings.
Here, for example, it is possible: one of the two housing elements, such as the second housing element, can be designed as a mechanical support structure, by means of which it is possible, for example, to attach the battery housing to a vehicle, or by means of which it is also possible, for example, to attach a battery cell or a battery module within the receiving space to the battery housing.
In this case, the first housing element and the second housing element are each particularly preferably formed in half-shell form.
In particular, the first housing element and/or the second housing element or their inner wall elements and/or their outer wall elements can preferably be constructed from stainless steel, aluminum or copper, for example.
Advantageously, the first housing element and the second housing element are connected to each other. Here, a sealing ring is also arranged around between the first housing element and the second housing element.
In this case, it should be noted here that: "around" is to be understood as: the sealing ring is arranged between the first housing element and the second housing element over the entire connecting section.
This provides for example the following advantages: the battery housing can also be reliably sealed with respect to ambient influences, such as water spray or rain occurring during driving of the vehicle, so that the battery housing can also be arranged outside the vehicle, for example. In this case, for example, it is conceivable to arrange the device on the roof of a vehicle, such as a bus.
In particular, the first housing element and the second housing element can be connected to one another, for example, in a form-fitting manner, such as, in particular, clipped or hooked, or, for example, in a material-fitting manner, such as welded or adhesively bonded. Furthermore, in particular, it is also conceivable: the first housing element and the second housing element are connected to each other by means of a further clamping element, such as a clampband or a clamping band.
Suitably, the first housing element and the second housing element are connected to each other in such a way that the outer wall element of the first housing element and the inner wall element of the second housing element extend partially in mechanical contact with each other.
This provides, for example, particular advantages: the first housing element and the second housing element therefore cover one another, as a result of which, on the one hand, a more reliable sealing of the receiving space with respect to the surroundings can be formed, while, on the other hand, it is particularly preferred that the heat conduction between the receiving space and the surroundings can also be further reduced.
It is thereby possible to: in particular at the connection point between the two housing elements, the thermal key point is formed by the covering of the two housing elements with a comparatively significantly reduced heat conduction.
Advantageously, the inner wall element and the outer wall element of the first housing element are connected to one another in a material-fitting manner. It is also advantageous if the inner wall element and the outer wall element of the second housing element are connected to one another in a material-fitting manner. In this case, preferably, not only the inner wall element and the outer wall element of the first housing element are connected to one another in a material-fitting manner, but also the inner wall element and the outer wall element of the second housing element are connected in a material-fitting manner. By means of one or more such material-fitting connections, the boundary of the insulating space can be formed. Thus, by such a point-by-point connection of the inner wall element with the outer wall element, a boundary of the insulation space can be constructed. In particular, the insulation space is sealed in a gas-tight manner.
The material-to-material connection can be formed, for example, by welding or gluing.
Thus, for example, it is possible to: an insulating material can also be arranged in the insulating space or can also be filled with a reduced pressure, whereby the thermal insulation can also be improved.
Suitably, the first housing element comprises a plurality of housing inner walls and/or a plurality of housing outer walls, respectively. It is also expedient for the second housing element to comprise a plurality of housing inner walls and/or a plurality of housing outer walls, respectively. Of course, it is preferred that the first housing element also comprises a plurality of housing inner walls and/or a plurality of housing outer walls, respectively, and that the second housing element comprises a plurality of housing inner walls and/or a plurality of housing outer walls, respectively. In this case, the respectively adjacently arranged housing inner walls or respectively adjacently arranged housing outer walls are connected to one another in a material-fit manner.
It is thereby possible to: the mechanical stability is improved, for example, at the connection point between the first housing element and the second housing element or also in an inclined position of the first housing element or the second housing element.
According to a first aspect of the invention, the at least one spacer element is embodied as an insert.
It is thereby possible to: by means of the spacer elements embodied as inserts, a constant spacing is formed between the respective inner housing wall and the respective outer housing wall. Furthermore, such spacer elements embodied as inserts can also be used for transmitting mechanical forces. Of course, it is also possible: a plurality of inserts are arranged. For example, the inserts may be annularly configured.
Here, it is also suitable: the insert is embodied in a polymeric material. It is thereby possible to: apart from a reliable mechanical support of the inner and outer housing walls, a spacer element with poor thermal conductivity is also provided.
According to a second aspect of the invention, the at least one spacer element is formed by an inner housing wall and/or an outer housing wall of the first housing element and/or the second housing element.
It is thereby possible to: the spacer element is an integral component of the housing inner wall or of the housing outer wall. Here, it is of course also possible: a plurality of spacer elements are constructed, respectively.
Such an integrated design of the spacer element as a component of the housing inner wall or housing outer wall can be designed, for example, as a molding or embossing.
It is thereby possible to: by means of the spacer elements formed by the housing inner walls or by the housing outer walls, a constant spacing is formed between the respective housing inner wall and the respective housing outer wall. Furthermore, such integrated spacer elements may also be used for transferring mechanical forces.
Preferably, both the respective housing inner wall and the respective housing outer wall are designed as spacer elements, wherein the spacer elements are arranged here such that the spacer elements of the housing inner wall and the spacer elements of the housing outer wall are always arranged in mechanical contact.
Advantageously, the at least one spacer element of the housing inner wall is connected in a material-locking manner to the housing outer wall, wherein in this case the housing outer wall may also be formed without spacer elements.
Advantageously, the at least one spacer element of the outer housing wall is connected in a material-locking manner to the inner housing wall, wherein in this case the inner housing wall may also be formed without spacer elements.
Particularly advantageously, the at least one spacer element of the housing inner wall is materially connected to the at least one spacer element of the housing outer wall.
Thereby, a reliable positioning of the spacer element may be constructed.
Suitably: an insulating material is arranged in the insulating space, which insulating material is designed to thermally insulate the receiving space, in particular, from the surroundings. Furthermore, it is also suitable: a pressure of between 0.1mbar and 1mbar is built up in the insulating space. It is of course possible that: the two embodiments mentioned are combined with each other. The mentioned variant offers particular advantages: thermal insulation may also be improved. The insulating material can comprise aerogel, fumed silica or glass fibers, for example.
The invention also relates to a battery pack having a battery pack housing according to the invention as described above. In this case, a plurality of battery cells, in particular lithium-ion battery cells, medium-temperature battery cells or solid-state battery cells, are accommodated in the receiving space of the battery housing. For this reason, it should be noted here that: the battery cells can also be electrically connected in series and/or in parallel to form a battery module. Furthermore, the battery module may already comprise a temperature regulation and/or a regulation system.
It should also be noted here that: the medium temperature battery cell comprises a temperature range preferably between 60 ℃ and 90 ℃ and further preferably from 75 ℃ to 80 ℃.
Overall, the mechanical functions of receiving and protecting the battery cells in the receiving space and the thermal function of insulating them from the surroundings can be combined with one another using the battery housing according to the invention, as a result of which the integration and power density of the battery as a whole can be increased.
Drawings
Embodiments of the invention are illustrated in the drawings and are further described in the following description.
Wherein:
fig. 1 shows an embodiment of a battery housing according to the invention in an exploded view;
fig. 2 shows an embodiment of a battery pack according to the invention in a perspective view;
fig. 3a shows a section of a battery housing according to a first embodiment of the invention in a sectional view;
fig. 3b shows a fragment from fig. 3a in an enlarged view;
fig. 3c shows a section of a first housing element of a battery housing according to a first embodiment of the invention;
fig. 3d shows a section of a second housing element of a battery housing according to a first embodiment of the invention;
fig. 4a shows a section of a battery housing according to a second embodiment of the invention in a sectional view;
fig. 4b shows a fragment from fig. 4a in an enlarged view;
fig. 4c shows a section of a first housing element of a battery housing according to a second embodiment of the invention;
fig. 4d shows a section of a second housing element of a battery housing according to a second embodiment of the invention in a sectional view.
Detailed Description
Fig. 1 shows an embodiment of a battery housing 1 according to the invention in an exploded view, which is designed to accommodate a battery comprising a plurality of battery cells.
The battery housing 1 has a first housing element 21 and a second housing element 22. The first housing element 21 and the second housing element 22 together form a receiving space 3, which is designed to receive a plurality of battery cells, which are not visible in fig. 1.
These battery cells can be designed, for example, as lithium-ion battery cells, medium-temperature battery cells or solid-state battery cells.
In particular, the first housing element 21 and the second housing element 22 are embodied in half-shell form here, i.e. essentially comprise five side walls 8 and one opening 9.
Preferably, the first housing element 21 and the second housing element 22 are constructed from stainless steel and have a wall thickness of 1 mm.
For example, according to the embodiment of fig. 1, the first housing element 21 and the second housing element 22 here comprise an inner wall element 4 and an outer wall element 5, respectively.
The first housing element 21 comprises in particular a first inner wall element 41 and a first outer wall element 51, which, however, is not visible in fig. 1.
The second housing element 22 comprises inter alia a second inner wall element 42 and a second outer wall element 52.
The first housing element 21 and the second housing element 22 can be connected to one another in such a way that the receiving space 3 is sealed off from the surroundings 6 of the battery housing 1.
In particular, the first housing element 21 and the second housing element 22 can be connected to one another in such a way that the respective openings 9 are sealed off from one another.
A sealing ring 7 is also arranged around between the first housing element 21 and the second housing element 22. In particular, the sealing ring 7 in the connected state surrounds the respective opening 9 of the first housing element 21 or of the second housing element 22.
It should be noted here that: fig. 1 also shows a connecting element 10, which is designed to connect the battery housing 1 to, for example, a vehicle that is not visible.
Fig. 2 shows an embodiment of a battery pack 100 according to the present invention. The battery pack 100 has the battery housing 1 according to the invention shown in fig. 1, wherein the first housing element 21 and the second housing element 22 are connected to one another in such a way that the receiving space 3 is sealed off from the surroundings 6.
In this case, a plurality of battery cells 2 are accommodated in an accommodation space 3 of the battery housing 1, which is not visible in fig. 2.
Fig. 3a, 3b, 3c and 3d each show a sectional view through the battery housing 1 according to a first embodiment of the invention.
Fig. 3a shows a section of a battery housing 1 according to a first embodiment of the invention in a sectional view.
Fig. 3b shows a section from fig. 3a in an enlarged view at the connection point between the first housing element 21 and the second housing element 22.
Fig. 3c shows a section of the first housing element 21 of the battery housing 1 according to the first embodiment of the invention in a sectional view.
Fig. 3d shows a section through a second housing element 22 of the battery housing 1 according to a second embodiment of the invention.
Here it can be seen that: the first housing element 21 comprises a first inner wall element 41 and a first outer wall element 51; and the second housing member 22 includes a second inner wall member 42 and a second outer wall member 52.
In addition, the receiving space 3 can also be seen in fig. 3a and 3 b.
The inner wall elements 41, 51 and the outer wall elements 42, 52 are spaced apart from one another by means of the spacer elements 11. In this case, a first insulation space 121 is formed within the first housing element 21 and a second insulation space 122 is formed within the second housing element 22, spaced apart by the inner wall element and the outer wall element. Here, the first insulation space 121 and the second insulation space 122 are each designed to thermally insulate the receiving space 3 from the surroundings 6 of the battery housing 1.
In this case, it can be seen in particular from the illustration in fig. 3 b: the first housing element 21 and the second housing element 22 are connected to one another in such a way that the first outer wall element 51 of the first housing element 21 and the second inner wall element 42 of the second housing element 22 extend partially in mechanical contact with one another. In this case, for the sake of clarity, the first outer wall element 51 of the first housing element 21 is provided with reference numeral 510, while the second inner wall element 42 of the second housing element 22 is provided with reference numeral 420. Here, the first outer wall element 510 and the second inner wall element 420 are advantageously in contact, thereby improving mechanical stability. Thereby, the overlap of the first housing element 21 and the second housing element 22 is constructed.
As already mentioned, a sealing ring 7 is arranged between the first housing element 21 and the second housing element 22.
Furthermore, it can be seen in particular from fig. 3c and 3d that: the inner wall elements 4, 41, 42 and the outer wall elements 5, 51, 52 are connected to one another in a material-fit manner, so that the boundaries of the respective insulation spaces 121, 122 are formed.
Fig. 3c shows in particular: the first inner wall element 41 of the first housing element 21 and the first outer wall element 51 of the first housing element 21 are connected to one another in a material-fit manner at a location designated by reference numeral 131, so that a boundary of the first insulation space 121 is formed.
Fig. 3d shows in particular: the second inner wall element 42 of the second housing element 22 and the second outer wall element 52 of the second housing element 22 are connected to one another in a material-fit manner at the location designated by reference numeral 132, so that a boundary of the second insulation space 122 is formed.
Such a material- fitting connection 131, 132 can be formed, for example, by means of welding and preferably by means of spot welding.
Furthermore, it can be seen in particular from fig. 3c and 3d that: the first housing element 21 and the second housing element 22 may have a plurality of housing inner walls 4 and a plurality of housing outer walls 5, respectively. In this case, the housing inner walls 4 and the housing outer walls 5, which are arranged adjacent to one another, are connected to one another in a material-fit manner. Such a material-fit connection is designated, for example, by reference numeral 133 in fig. 3c and 3 d.
For this reason, it should be noted here that: for example, the connecting element 10 can also be connected to the second housing element 22 by means of two material-fit connections, such as solder connections, which are designated by reference numeral 134.
Furthermore, the second housing element 22 can also have reinforcing elements 14, which can be used to increase the mechanical stability.
In a first exemplary embodiment of the battery housing 1 according to the invention, which is illustrated in fig. 3a, 3b, 3c and 3d, the spacer elements 11 are each embodied as an insert 110. Preferably, the insert 110 may be constructed of a polymeric material. For example, the polymeric material may be selected to be polyphenylene sulfide (PPS), which may also preferably be reinforced as glass fibers.
In order to fix the spacer element 11 embodied as an insert 110, it is possible: the insert 110 is connected to the respective housing inner wall 4 and/or housing outer wall 5 in a material-fitting manner, for example adhesively.
It is also possible to: as can be seen in fig. 3a, an insulating material 150 is arranged within the insulating space 121 or 122, which insulating material is designed to thermally insulate the receiving space 3, in particular, from the surroundings 6. Here, the insulating material 150 may be configured as a mat including aerogel, for example. Furthermore, the insulating material 150 may also be configured as a plate comprising fumed silica or as a mat comprising glass fibers.
Fig. 4a, 4b, 4c and 4d each show a sectional view through the battery housing 1 according to a second embodiment of the invention.
Fig. 4a shows a section of a battery housing 1 according to a second embodiment of the invention in a sectional view.
Fig. 4b shows a section from fig. 4a in an enlarged view at the connection point between the first housing element 21 and the second housing element 22.
Fig. 4c shows a section of a first housing element 21 of the battery housing 1 according to a second embodiment of the invention in a sectional view.
Fig. 4d shows a section of a second housing element 22 of the battery housing 1 according to a second embodiment of the invention in a sectional view.
The second embodiment of the battery housing 1 shown in fig. 4a, 4b, 4c and 4d differs from the first embodiment of the battery housing 1 shown in fig. 3a, 3b, 3c and 3d in particular by the design of the spacer element 16. In this case, the further embodiment essentially corresponds to the first embodiment already described, so that the description of the identically configured elements is omitted here.
The spacer elements 16 are each formed by the housing inner wall 4 and the housing outer wall 5.
In particular, the first housing inner wall 41 of the first housing element 21 forms a first inner spacer element 161, while the first housing outer wall 51 of the first housing element 21 forms a first outer spacer element 162.
In particular, the second housing inner wall 42 of the second housing element 22 forms a second inner spacer element 163, while the second housing outer wall 52 of the second housing element 22 forms a second outer spacer element 164.
According to a second exemplary embodiment of the battery housing 1 according to the invention, as can be seen in particular in fig. 4c and 4d, the spacer elements 16 of the housing inner wall 4 are connected to the spacer elements 16 of the housing outer wall 5 in a material-locking manner.
In particular, the first inner spacer element 161 of the first housing inner wall 41 is connected in a material-fitting manner to the first outer spacer element 162 of the first housing outer wall 51, wherein the material-fitting connection, which is designed, for example, by welding, is to be explained with the aid of the reference numeral 165.
In particular, the second inner spacer element 163 of the second housing inner wall 42 is connected in a material-fitting manner to the second outer spacer element 164 of the second housing outer wall 52, wherein the material-fitting connection, which is designed, for example, by welding, is to be explained with the aid of reference numeral 166.
In particular in the second exemplary embodiment of the battery housing 1 according to the invention, a pressure which is reduced relative to the pressure of the surroundings 6, for example having a value between 0.1mbar and 1mbar, can be formed in the respective insulation spaces 121, 122. It should be noted here that: the ambient pressure is typically 1 bar.
Claims (11)
1. Battery housing of a battery pack (100) comprising a plurality of battery cells, in particular lithium ion battery cells, having: a first housing element (21) and a second housing element (22) which together form a receiving space (3) which is designed to receive the plurality of battery cells, wherein the first housing element (21) and/or the second housing element (22) each comprise an inner wall element (4) and an outer wall element (5) which are spaced apart from one another by means of at least one spacer element (11, 16) while forming an insulation space (121, 122) which is designed to thermally insulate the insulation space (2) from the surroundings (6).
2. The battery pack case according to the previous claim 1,
it is characterized in that the preparation method is characterized in that,
the first housing element (21) and the second housing element (22) are connected to one another, wherein a sealing ring (7) is also arranged around between the first housing element (21) and the second housing element (22).
3. The battery pack case according to the preceding claim 2,
it is characterized in that the preparation method is characterized in that,
the first housing element (21) and the second housing element (22) are connected to each other in such a way that an outer wall element (51, 510) of the first housing element (21) and an inner wall element (42, 420) of the second housing element (22) extend partially in mechanical contact with each other.
4. The battery pack case according to one of the above claims 1 to 3,
it is characterized in that the preparation method is characterized in that,
the inner wall elements (4, 41) and the outer wall elements (5, 51) of the first housing element (21) and/or the inner wall elements (4, 42) and the outer wall elements (5, 52) of the second housing element (22) are connected to one another in a material-fit manner, so that a boundary of the insulating spaces (121, 122) is formed.
5. The battery pack case according to one of the above claims 1 to 4,
it is characterized in that the preparation method is characterized in that,
the first housing element (21) and/or the second housing element (22) each comprise a plurality of housing inner walls (4) and/or a plurality of housing outer walls (5), wherein the housing inner walls (4) respectively arranged adjacently or the housing outer walls (5) respectively arranged adjacently are connected to one another in a material-fit manner.
6. The battery pack case according to one of the above claims 1 to 5,
it is characterized in that the preparation method is characterized in that,
the at least one spacer element (11) is embodied as an insert (110).
7. The battery pack case according to the previous claim 6,
it is characterized in that the preparation method is characterized in that,
the insert (110) is embodied in a polymeric material.
8. The battery pack case according to one of the above claims 1 to 5,
it is characterized in that the preparation method is characterized in that,
the at least one spacer element (16) is formed by a housing inner wall (4, 41, 42) and/or a housing outer wall (5, 51, 52) of the first housing element (21) and/or the second housing element (22).
9. The battery pack case according to the previous claim 8,
it is characterized in that the preparation method is characterized in that,
at least one spacer element (16, 161, 163) of the housing inner wall (4) is connected to the housing outer wall (5) in a material-fitting manner, or
At least one spacer element (16, 161, 163) of the housing inner wall (4) is connected in a material-locking manner to at least one spacer element (16, 162, 164) of the housing outer wall (5), or
At least one spacer element (16, 162, 164) of the housing outer wall (5) is connected to the housing inner wall (4) in a material-locking manner.
10. The battery pack case according to one of the above claims 1 to 9,
it is characterized in that the preparation method is characterized in that,
an insulating material (150) configured for thermal insulation is arranged in the insulating space (121, 122), and/or
A pressure of between 0.1mbar and 1mbar is formed in the insulating spaces (121, 21).
11. Battery having a battery housing (1) according to one of the preceding claims 1 to 10,
wherein a plurality of battery cells (2), in particular lithium ion battery cells, are accommodated in the accommodation space (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018217083.5 | 2018-10-05 | ||
| DE102018217083.5A DE102018217083A1 (en) | 2018-10-05 | 2018-10-05 | Battery case and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111009622A true CN111009622A (en) | 2020-04-14 |
Family
ID=69886353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910922727.8A Pending CN111009622A (en) | 2018-10-05 | 2019-09-27 | Battery pack case and battery pack |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111009622A (en) |
| DE (1) | DE102018217083A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116733A1 (en) * | 2021-12-20 | 2023-06-29 | 奥动新能源汽车科技有限公司 | Lower-case body of battery case, battery case, battery pack, and electric vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021207623A1 (en) | 2021-07-16 | 2023-01-19 | Mahle International Gmbh | Battery housing for accommodating at least one battery cell module |
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|---|---|---|---|---|
| JP2013093151A (en) * | 2011-10-25 | 2013-05-16 | Hatachi Kako Co Ltd | Battery case |
| DE102012209349A1 (en) * | 2012-06-04 | 2013-05-29 | Continental Automotive Gmbh | Battery housing for use in e.g. electrical car, has side walls formed as double walled extruded sections of housing, where extruded sections comprise inner wall limited at inner space of housing |
| FR2986374A1 (en) * | 2012-01-31 | 2013-08-02 | Segula Matra Technologies | Element such as batteries tray, useful for electric storage batteries unit of electric vehicle, comprises container with casing presenting walls that include structure provided with mechanical layers of carbon fibers impregnated with resin |
| CN106575723A (en) * | 2014-09-22 | 2017-04-19 | 罗伯特·博世有限公司 | Thermal insulation of battery having elevated operating temperature |
| CN106953040A (en) * | 2015-10-20 | 2017-07-14 | 罗伯特·博世有限公司 | Enclosure system, battery module, method for regulating temperature and the battery pack of battery module |
| EP3196956A1 (en) * | 2016-01-21 | 2017-07-26 | König Metall GmbH & Co. KG | Method for producing a battery housing |
| DE102017000263A1 (en) * | 2017-01-12 | 2017-07-27 | Daimler Ag | Modular system for different battery module carriers and method for providing a modular system for different battery module carrier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016106021A1 (en) * | 2016-01-21 | 2017-07-27 | Jobst H. KERSPE | Method for producing a battery case |
-
2018
- 2018-10-05 DE DE102018217083.5A patent/DE102018217083A1/en active Pending
-
2019
- 2019-09-27 CN CN201910922727.8A patent/CN111009622A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013093151A (en) * | 2011-10-25 | 2013-05-16 | Hatachi Kako Co Ltd | Battery case |
| FR2986374A1 (en) * | 2012-01-31 | 2013-08-02 | Segula Matra Technologies | Element such as batteries tray, useful for electric storage batteries unit of electric vehicle, comprises container with casing presenting walls that include structure provided with mechanical layers of carbon fibers impregnated with resin |
| DE102012209349A1 (en) * | 2012-06-04 | 2013-05-29 | Continental Automotive Gmbh | Battery housing for use in e.g. electrical car, has side walls formed as double walled extruded sections of housing, where extruded sections comprise inner wall limited at inner space of housing |
| CN106575723A (en) * | 2014-09-22 | 2017-04-19 | 罗伯特·博世有限公司 | Thermal insulation of battery having elevated operating temperature |
| CN106953040A (en) * | 2015-10-20 | 2017-07-14 | 罗伯特·博世有限公司 | Enclosure system, battery module, method for regulating temperature and the battery pack of battery module |
| EP3196956A1 (en) * | 2016-01-21 | 2017-07-26 | König Metall GmbH & Co. KG | Method for producing a battery housing |
| DE102017000263A1 (en) * | 2017-01-12 | 2017-07-27 | Daimler Ag | Modular system for different battery module carriers and method for providing a modular system for different battery module carrier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023116733A1 (en) * | 2021-12-20 | 2023-06-29 | 奥动新能源汽车科技有限公司 | Lower-case body of battery case, battery case, battery pack, and electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018217083A1 (en) | 2020-04-09 |
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