CN113540628B - Battery cover, battery shell and battery - Google Patents
Battery cover, battery shell and battery Download PDFInfo
- Publication number
- CN113540628B CN113540628B CN202110680648.8A CN202110680648A CN113540628B CN 113540628 B CN113540628 B CN 113540628B CN 202110680648 A CN202110680648 A CN 202110680648A CN 113540628 B CN113540628 B CN 113540628B
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- CN
- China
- Prior art keywords
- battery
- cooling
- shell
- cover
- cooling structure
- Prior art date
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- 238000001816 cooling Methods 0.000 claims abstract description 90
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000012782 phase change material Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses a battery cover body, a battery shell and a battery; wherein, this battery cover includes: the cooling structure comprises a body, a pole structure and M cooling structures, wherein the pole structure and the M cooling structures are arranged on a first surface of the body; wherein each cooling structure is connected to the first face; each cooling structure includes an internal cavity, and a cooling material is disposed within each cavity. The cooling material is a phase change material. The M cooling structures are annularly distributed in a preset range of the outer edge line of the body.
Description
Technical Field
The application belongs to the technical field of lithium batteries, and particularly relates to a battery cover body, a battery shell and a battery.
Background
In recent years, lithium battery technology has been rapidly developed and has been used in more and more fields. However, due to the principle and structural characteristics of the lithium battery, the heat generated by internal resistance is often increased during repeated use. And the tab part close to the pole is the part with the highest heat of the battery core. If the heat accumulated on the lug part cannot be effectively dissipated, the stability of the battery is affected, and the service life of the lithium battery is shortened. When the temperature is further raised, the electrolyte and the solvent inside can be decomposed, combusted and exploded. Considering safety issues.
In the related art, in order to reduce the temperature inside the battery, heat dissipation can be performed outside the battery case, however, the heat dissipation efficiency of the battery is greatly affected in this way, for example, in the patent of using the heat pipe, the heat pipe is placed outside the battery case, the heat pipe is in contact with the battery case, and then the heat conduction material is added between the heat pipe and the battery case to conduct heat, so that the heat is greatly lost through the battery case, the heat conduction glue and the heat pipe case, and the heat dissipation efficiency is relatively low.
Disclosure of Invention
An object of the present application is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
The application provides a battery cover, this battery cover includes: the cooling structure comprises a body, a pole structure and M cooling structures, wherein the pole structure and the M cooling structures are arranged on a first surface of the body; wherein each cooling structure is connected to the first face; each cooling structure includes an internal cavity, and a cooling material is disposed within each cavity.
Optionally, in an embodiment of the present application, the cooling material is a phase change material.
Optionally, in this embodiment of the application, the M cooling structures are annularly distributed in a preset range of the outer edge line of the body.
Optionally, in this embodiment of the application, each of the cooling structures is disposed through the body, and a sealing head is disposed on an end of each of the cooling structures away from the first surface.
Another object of the present invention is to provide a battery case including a bottom cover, the battery case further including: the battery cover described above, and the side case; wherein, the bottom cover is connected with the first end of the side shell; the second surface of the battery cover body is connected with the second end of the side shell; the second end is the end of the side shell far away from the first end; m cooling cavities are concavely arranged on the second end; the second surface of the battery cover body is connected with the second end, and M cooling structures of the battery cover body are inserted into M cooling cavities; each cooling structure is respectively attached to the side wall of one cooling cavity; m is a positive integer.
Optionally, in this embodiment of the application, a sealing groove is further disposed on the second end.
Optionally, in this embodiment of the application, a metal ring is further disposed on the second end.
It is still another object of the present application to provide a battery, which includes a battery body, the battery further including the battery case as described above; wherein, the battery body is arranged in the battery shell; the pole structure of the battery cover body of the battery shell is connected with the battery body; the outer wall of the battery body is attached to the side shell of the battery shell.
Compared with the prior art, the method has the following beneficial effects:
the battery cover that this application embodiment provided, this battery cover includes: the cooling structure comprises a body, a pole column structure and M cooling structures, wherein the pole column structure and the M cooling structures are arranged on a first surface of the body; wherein each cooling structure is connected to the first face; each cooling structure includes an internal cavity, and a cooling material is disposed within each cavity. Because can be provided with M cooling structure on the battery lid, this every cooling structure includes an inside cavity respectively, be provided with cooling material in every cavity, when using like this, can be with M cooling structure and the side casing laminating of battery lid, and with the side casing and the laminating of battery body, thereby when the inside temperature of battery is greater than the service temperature, cooling material among every cooling structure flows in cooling structure, take away the inside heat of battery, thereby can make every cooling structure directly cool off the electrolyte of battery, very big improvement radiating efficiency, the operating temperature of battery has been guaranteed.
Additional advantages, objects, and features of the application will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery cover according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a battery case according to an embodiment of the present disclosure;
fig. 3 is a second schematic structural diagram of a battery case according to an embodiment of the present disclosure;
fig. 4 is a third schematic structural diagram of a battery case according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a side casing according to an embodiment of the present disclosure;
fig. 6 is a second schematic structural diagram of a side casing according to an embodiment of the present application.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings, whereby one skilled in the art can, with reference to the description, make an implementation.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The technical solution of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the present application provides a battery cover comprising: the cooling structure comprises a body 10, a pole structure 11 arranged on a first surface of the body 10 and M cooling structures 12, wherein M is a positive integer.
Wherein each cooling structure 12 is connected to a first face; each cooling structure 12 includes an internal cavity, and a cooling material is disposed within each cavity.
Optionally, in this embodiment of the application, the pole structure 11 includes: a positive post and a negative post.
Optionally, in this embodiment of the application, the first surface may specifically be: the bottom surface of the body 10, i.e., the surface that is away from the battery body when in use.
Alternatively, in the embodiment of the present application, the M cooling structures 12 may specifically be 16 cooling structures 12, and each cooling structure has an internal cavity with an internal diameter of 6 mm. It will be appreciated that the phase change material described above is disposed in the internal cavity.
Optionally, in the embodiment of the present application, each cooling structure 12 is disposed through the body 10, and a sealing head 13 is disposed on one end of the first surface of each cooling structure 12. The sealing head 13 has an outer diameter of 6 mm. The bottom of the sealing head 13 is also provided with a sealing ring 131.
It will be appreciated that each cooling structure, internal cavity, and sealing head together comprise a heat pipe structure. When the battery is used, the sealing head can be attached to the side shell, so that when the battery generates heat in the use process, the gas-liquid phase-change material in the internal cavity is gasified and enters one end, far away from the sealing head 13, of each cooling structure 12, the gas-liquid phase-change material is cooled into liquid after heat is dissipated from the end, and the liquid flows back to the internal cavity, so that the heat-changing pipe structure can directly cool electrolyte and tabs in the large-capacity battery, and the purpose of rapidly cooling the battery is achieved.
Optionally, in an embodiment of the present application, the cooling material is a phase change material.
The phase change material may be: a gas-liquid phase change material.
Optionally, in this embodiment of the application, the M cooling structures 12 are annularly distributed within a predetermined range of the outer edge line of the body 10.
As shown in fig. 1 to 4, the present application provides a battery case including a bottom cover 14, the battery case further including: the battery cover in the above embodiment, and the side case 15;
wherein, the bottom cover 14 is connected with the first end of the side shell 15; the second surface of the battery cover body is connected with the second end of the side shell; the second end is the end of the side casing 15 remote from the first end; m cooling cavities 16 are concavely arranged on the second end;
the second end of the battery cover body is connected with the surface far away from the second surface, and M cooling structures 12 of the battery cover body are inserted into M cooling cavities 16; each cooling structure 12 is attached to a side wall of one cooling cavity 16; m is a positive integer.
Wherein, the second surface is a surface far away from the first surface.
Optionally, in this embodiment of the present application, a sealing groove 18 is further disposed on the second end.
Optionally, in this embodiment of the present application, a sealing ring is further disposed in the sealing groove 18.
Optionally, in this embodiment of the present application, a metal ring 19 is further disposed on the second end.
It can be understood that the sealing groove 18 and the sealing ring can seal the battery, and the battery cover and the side housing 15 are welded together by the metal ring 19, so that the sealing performance can be ensured.
Fig. 5 is a schematic view showing another shape of the side case, and fig. 6 is a schematic sectional view of the side case.
In the embodiment of the present application, the side casing may be provided in the shape of fig. 5, so that the material used for the side casing may be saved.
The application provides a battery, this battery includes battery body, and this point pond still includes:
the battery case in the above embodiment;
wherein, the battery body is arranged in the battery shell; the pole structure of the battery cover body of the battery shell is connected with the battery body; the outer wall of the battery body is attached to the side shell of the battery shell.
In the embodiment of the application, the battery is provided with M cooling structures which are arranged in the side shell and have an integrated structure, when the battery generates heat in the use process, the gas-liquid phase-change material in the internal cavity is gasified and enters the condenser pipe, and the gas-liquid phase-change material is cooled to be liquid and flows back to the internal cavity after the heat is dissipated by the cooling structure of the condenser pipe, so that the heat on the side shell is taken away by the sealing head, the M cooling structures can directly cool the electrolyte and the lug inside the battery, and the purpose of rapidly cooling the battery is achieved.
The battery cover that this application embodiment provided, this battery cover includes: the cooling structure comprises a body, a pole column structure and M cooling structures, wherein the pole column structure and the M cooling structures are arranged on a first surface of the body; wherein each cooling structure is connected to the first face; each cooling structure includes an internal cavity, and a cooling material is disposed within each cavity. Because can be provided with M cooling structure on the battery lid, this every cooling structure includes an inside cavity respectively, be provided with cooling material in every cavity, when using like this, can be with M cooling structure and the side casing laminating of battery lid, and with the side casing and the laminating of battery body, thereby when the inside temperature of battery is greater than the service temperature, cooling material among every cooling structure flows in cooling structure, take away the inside heat of battery, thereby can make every cooling structure directly cool off the electrolyte of battery, very big improvement radiating efficiency, the operating temperature of battery has been guaranteed.
Although the embodiments of the present application have been disclosed above, they are not limited to the applications listed in the description and the embodiments. It can be applied in all kinds of fields suitable for this application. Additional modifications will readily occur to those skilled in the art. Therefore, the application is not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A battery cover, comprising: the cooling structure comprises a body, a pole column structure and M cooling structures, wherein the pole column structure and the M cooling structures are arranged on a first surface of the body, and M is a positive integer;
wherein each cooling structure is connected to the first face; each cooling structure comprises an inner cavity, cooling materials are arranged in each cavity, each cooling structure penetrates through the body, and a sealing head is arranged at one end, far away from the first face, of each cooling structure.
2. The battery cover of claim 1, wherein the cooling material is a phase change material.
3. The battery cover of claim 1, wherein the M cooling structures are annularly distributed within a predetermined range of an outer edge line of the body.
4. A battery case including a bottom cover, the battery case further comprising:
the battery cover of any one of claims 1 to 3, and a side case;
wherein the bottom cover is connected with a first end of the side housing; the second surface of the battery cover body is connected with the second end of the side shell; the second end is the end of the side housing remote from the first end; m cooling cavities are concavely arranged on the second end;
the second surface of the battery cover body is connected with the second end, and M cooling structures of the battery cover body are inserted into the M cooling cavities; each cooling structure is respectively attached to the side wall of one cooling cavity; m is a positive integer.
5. The battery case of claim 4, wherein the second end further comprises a seal groove disposed thereon.
6. The battery housing of claim 4, wherein a metal ring is further disposed on the second end.
7. A battery comprising a battery body, the battery further comprising:
the battery case according to any one of claims 4 to 6;
the battery body is arranged inside the battery shell; the pole structure of the battery cover body of the battery shell is connected with the battery body;
the outer wall of the battery body is attached to the side shell of the battery shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680648.8A CN113540628B (en) | 2021-06-18 | 2021-06-18 | Battery cover, battery shell and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680648.8A CN113540628B (en) | 2021-06-18 | 2021-06-18 | Battery cover, battery shell and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113540628A CN113540628A (en) | 2021-10-22 |
| CN113540628B true CN113540628B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110680648.8A Active CN113540628B (en) | 2021-06-18 | 2021-06-18 | Battery cover, battery shell and battery |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017117611A (en) * | 2015-12-24 | 2017-06-29 | 小島プレス工業株式会社 | Battery pack |
| CN110518305A (en) * | 2018-05-22 | 2019-11-29 | 银隆新能源股份有限公司 | Power supply device with heat sinking function |
| CN111490186A (en) * | 2019-01-28 | 2020-08-04 | 深圳市嘉名科技有限公司 | Lithium battery and lithium battery packaging shell |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101261925B1 (en) * | 2011-09-29 | 2013-05-08 | 현대자동차주식회사 | Battery package stuffing Phase Change Material in interior thereof and battery using the same |
| JP2014139883A (en) * | 2013-01-21 | 2014-07-31 | Toyota Industries Corp | Electric storage device, secondary battery, storage module, secondary battery module, and method for manufacturing electric storage device |
| DE102014203715B4 (en) * | 2014-02-28 | 2023-06-15 | Robert Bosch Gmbh | Efficiently coolable housing for a battery module |
| KR20160100631A (en) * | 2015-02-16 | 2016-08-24 | 삼성에스디아이 주식회사 | Battery pack |
| CN207320173U (en) * | 2017-06-07 | 2018-05-04 | 银隆新能源股份有限公司 | A kind of rectangular cell with soakage function |
| CN108493511A (en) * | 2018-04-10 | 2018-09-04 | 安徽奥兹信息科技有限公司 | Heat dissipation sleeve pipe structure for automobile batteries |
-
2021
- 2021-06-18 CN CN202110680648.8A patent/CN113540628B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017117611A (en) * | 2015-12-24 | 2017-06-29 | 小島プレス工業株式会社 | Battery pack |
| CN110518305A (en) * | 2018-05-22 | 2019-11-29 | 银隆新能源股份有限公司 | Power supply device with heat sinking function |
| CN111490186A (en) * | 2019-01-28 | 2020-08-04 | 深圳市嘉名科技有限公司 | Lithium battery and lithium battery packaging shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113540628A (en) | 2021-10-22 |
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