CN102074662B - Shell structure of lithium ion battery and battery pack combined by battery shell - Google Patents
Shell structure of lithium ion battery and battery pack combined by battery shell Download PDFInfo
- Publication number
- CN102074662B CN102074662B CN2010105966744A CN201010596674A CN102074662B CN 102074662 B CN102074662 B CN 102074662B CN 2010105966744 A CN2010105966744 A CN 2010105966744A CN 201010596674 A CN201010596674 A CN 201010596674A CN 102074662 B CN102074662 B CN 102074662B
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- Prior art keywords
- battery
- shell
- groove
- housing
- lithium
- 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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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 19
- 239000011449 brick Substances 0.000 claims description 19
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention relates to a shell structure of a lithium ion battery. The shell structure comprises a battery core (2) and a shell (3), wherein the battery core (2) is placed in the shell (3); grooves (1) are formed on the shell (3); and the heat and bubbles produced by the battery core (2) directly pass through the grooves (1) to be transmitted to the external of the shell (3). In the shell structure of the lithium ion battery and a battery pack combined by the battery shell, the shell is provided with the grooves which improve the deformation resistance and compression strength of the shell.
Description
Technical field
The present invention relates to a kind of lithium-ion battery shell and power brick.
Background technology
Lithium ion battery is since nineteen ninety succeeds in developing, because he has unique advantages such as specific energy is high, operating voltage is high, pollution-free, security performance is good, household electrical appliance such as portable computer now have been widely used as, digital camera, the power supply of mobile phone etc., and the traditional battery of replacing in Aeronautics and Astronautics, navigation and traffic communication apparatus field.Because in recent years for the needs of lack of energy and environmental protection, therefore in the application of the electric automobile direction trend that is inevitable.
In the battery production process of reality, after injecting electrolyte, the unnecessary space of inside battery is very little, changing in the detection of later stage, the battery charging can be generated heat, heat can make electrolyte decomposition produce gas, other super-charge super-discharge, and after the fluid injection electrolyte can and the both positive and negative polarity material reflect, can produce a large amount of gas and cause inside battery pressure obviously to change, existing most of battery container thickness about 0.6mm, thereby cause the phenomenon of the gross distortion such as housing generation bulging, can be short-circuited when serious on fire, increase the potential safety hazard after the entrucking.
Summary of the invention
The power brick that the present invention has designed a kind of lithium-ion battery shell structure and has been combined into, the technical problem of its solution is: electrolyte meeting and the both positive and negative polarity material of (1) lithium ion battery reflect, a large amount of gas be can produce, expansion and the distortion of battery container easily caused; (2) lithium-ion battery shell of tradition sealing easily gathers heat, can shorten the useful life of battery container under the battery hot soak condition.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of lithium-ion battery shell structure, comprise battery core (2) and housing (3), described battery core (2) is positioned in the described housing (3), be provided with groove (1) at described housing (3), heat and bubble that described battery core (2) produces directly are sent to described housing (3) outside by described groove (1).
Further, described groove (1) is even number, and is distributed in symmetrically described housing (3) both sides.
Further, the cross sectional shape of described groove (1) is rectangle.
Further, the long 30mm-50mm of described rectangular recess, wide 10mm-15mm and dark 1mm.
The power brick that a kind of battery container is combined into, the battery case structure and a plurality of battery core (2) that comprise a plurality of claims 2, described a plurality of identical battery case structure is connected to a whole time-out, and the symmetrically arranged groove (1) on described a plurality of battery cores (2), the described a plurality of battery case structures forms a heat dissipation channel jointly.
Further, the cross sectional shape of described groove (1) is rectangle.
Further, the long 30mm-50mm of described rectangular recess, wide 10mm-15mm and dark 1mm.
This battery case structure and the power brick that is combined into thereof and conventional batteries shell structure and the power brick that is combined into thereof are compared, and have following beneficial effect:
(1) power brick that is combined into of lithium-ion battery shell structure of the present invention and battery container is by being provided with groove at housing, and this groove improves the anti deformational force of housing, has increased the housing compressive resistance.
(2) power brick that is combined into of lithium-ion battery shell structure of the present invention and battery container is by being provided with groove at housing, thereby forms the gas that generation is left in certain space at battery container inwall and battery core, reduces the possibility of housing bulging.
(3) power brick that is combined into of lithium-ion battery shell structure of the present invention and battery container is by being provided with symmetrically groove on housing, the common heat dissipation channel that forms of symmetrically arranged groove on a plurality of battery cores and a plurality of battery case structure, this heat dissipation channel has increased the battery heat-dissipating space, improve security performance, increase the service life.
Description of drawings
Fig. 1: the schematic perspective view of battery case structure of the present invention;
Fig. 2: the profile of battery case structure of the present invention;
Fig. 3: the profile of the power brick that battery container of the present invention is combined into.
Description of reference numerals:
The 1-groove; The 2-battery core; The 3-housing.
Embodiment
Below in conjunction with Fig. 1 to Fig. 3, the present invention will be further described:
As depicted in figs. 1 and 2, a kind of lithium-ion battery shell structure comprises battery core 2 and housing 3, and battery core 2 is positioned in the housing 3, is provided with groove 1 at housing 3, and heat and bubble that battery core 2 produces directly are sent to housing 3 outsides by groove 1.
Groove 1 is even number, and is distributed in symmetrically housing 3 both sides.The cross sectional shape of groove 1 is rectangle.The long 30mm-50mm of rectangular recess, wide 10mm-15mm and dark 1mm.
As shown in Figure 3, the power brick that a kind of battery container is combined into, comprise battery case structure and a plurality of battery core 2, a plurality of identical battery case structures are connected to a whole time-out, the symmetrically arranged groove 1 common heat dissipation channel that forms on a plurality of battery cores 2, a plurality of battery case structure.
When the battery gang was dressed up power brick, adjacent two groove 1 will connect together, and just formed the heat-dissipating space that doubles groove 2 volumes in power brick,
In addition, the cross sectional shape of groove 1 is rectangle.The long 30mm-50mm of rectangular recess, wide 10mm-15mm and dark 1mm.
This battery case structure and the power brick that is combined into thereof and conventional batteries shell structure and the power brick that is combined into thereof are compared, and have following beneficial effect:
(1) power brick that is combined into of lithium-ion battery shell structure of the present invention and battery container is by being provided with groove at housing, and this groove improves the anti deformational force of housing, has increased the housing compressive resistance.
(2) power brick that is combined into of lithium-ion battery shell structure of the present invention and battery container is by being provided with groove at housing, thereby forms the gas that generation is left in certain space at battery container inwall and battery core, reduces the possibility of housing bulging.
(3) power brick that is combined into of lithium-ion battery shell structure of the present invention and battery container is by being provided with symmetrically groove on housing, the common heat dissipation channel that forms of symmetrically arranged groove on a plurality of battery cores and a plurality of battery case structure, this heat dissipation channel has increased the battery heat-dissipating space, improve security performance, increase the service life.
The above has carried out exemplary description to the present invention by reference to the accompanying drawings; obvious realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or without improving design of the present invention and technical scheme are directly applied to other occasion, all in protection scope of the present invention.
Claims (1)
1. the power brick that battery case structure is combined into comprises a plurality of lithium-ion battery shell structures; Wherein, the lithium-ion battery shell structure comprises battery core (2) and housing (3), described battery core (2) is positioned in the described housing (3), be provided with groove (1) at described housing (3), heat and bubble that described battery core (2) produces directly are sent to described housing (3) outside by described groove (1), described groove (1) is even number, and be distributed in symmetrically described housing (3) both sides, it is characterized in that: when described a plurality of identical battery case structures link together, described a plurality of battery cores (2), symmetrically arranged groove (1) on described a plurality of battery case structure forms a heat dissipation channel jointly; The cross sectional shape of described groove (1) is rectangle; The long 30mm-50mm of described rectangular recess, wide 10mm-15mm and dark 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105966744A CN102074662B (en) | 2010-12-21 | 2010-12-21 | Shell structure of lithium ion battery and battery pack combined by battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105966744A CN102074662B (en) | 2010-12-21 | 2010-12-21 | Shell structure of lithium ion battery and battery pack combined by battery shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102074662A CN102074662A (en) | 2011-05-25 |
| CN102074662B true CN102074662B (en) | 2013-03-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105966744A Active CN102074662B (en) | 2010-12-21 | 2010-12-21 | Shell structure of lithium ion battery and battery pack combined by battery shell |
Country Status (1)
| Country | Link |
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| CN (1) | CN102074662B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290538A (en) * | 2011-07-22 | 2011-12-21 | 奇瑞汽车股份有限公司 | Lithium-ion power battery shell and power battery |
| CN105576155A (en) * | 2015-12-15 | 2016-05-11 | 上海纳米技术及应用国家工程研究中心有限公司 | Design method of new structural lithium battery |
| CN107591555B (en) * | 2016-07-06 | 2024-03-19 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| JP6989543B2 (en) * | 2019-02-05 | 2022-01-05 | フタバ産業株式会社 | Production method |
| CN110676397A (en) * | 2019-09-06 | 2020-01-10 | 天能电池(芜湖)有限公司 | Lightweight battery case |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728596A (en) * | 2008-10-10 | 2010-06-09 | 比亚迪股份有限公司 | Battery and battery pack comprising the battery |
| CN101764200A (en) * | 2010-01-20 | 2010-06-30 | 张力 | Packaging shell body of battery capacitor |
| CN201608210U (en) * | 2009-12-21 | 2010-10-13 | 潍坊威能环保电源有限公司 | Lithium-ion battery shell |
-
2010
- 2010-12-21 CN CN2010105966744A patent/CN102074662B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728596A (en) * | 2008-10-10 | 2010-06-09 | 比亚迪股份有限公司 | Battery and battery pack comprising the battery |
| CN201608210U (en) * | 2009-12-21 | 2010-10-13 | 潍坊威能环保电源有限公司 | Lithium-ion battery shell |
| CN101764200A (en) * | 2010-01-20 | 2010-06-30 | 张力 | Packaging shell body of battery capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102074662A (en) | 2011-05-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SAIC CHERY AUTOMOBILE CO., LTD. Effective date: 20150703 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150703 Address after: 241000 Yijiang, Anhui Province, Jin Hua Road, No. 226, South Road, No. Patentee after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241009 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee before: Saic Chery Automobile Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: 241003 no.226, South Huajin Road, high tech Industrial Development Zone, Wuhu City, Anhui Province Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |