CN201247785Y - Lithium ion battery case with compound structure - Google Patents
Lithium ion battery case with compound structure Download PDFInfo
- Publication number
- CN201247785Y CN201247785Y CNU2008201311258U CN200820131125U CN201247785Y CN 201247785 Y CN201247785 Y CN 201247785Y CN U2008201311258 U CNU2008201311258 U CN U2008201311258U CN 200820131125 U CN200820131125 U CN 200820131125U CN 201247785 Y CN201247785 Y CN 201247785Y
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- casing
- shell
- polymer
- 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.)
- Expired - Lifetime
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 43
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 150000001875 compounds Chemical group 0.000 title description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims description 40
- 239000002131 composite material Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000000956 alloy Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a composite-structure lithium ion battery shell which comprises a plastic shell provided with an electrode lead-out hole. The composite-structure lithium ion battery shell is characterized in that the plastic shell is wrapped in a metal shell inosculated with the surface of the plastic shell body, and the metal shell is provided with a through hole corresponding to the electrode lead-out hole of the plastic shell. The metal shell arranged outside the plastic shell body can increase the deformation resistant strength of the plastic shell body and improve the appearance of the battery shell. The metal shell can not burn, and can effectively prevent the lithium ion battery from being damaged in a burning mode by the influence of the external environment. The metal shell has strong air tightness, and can make up the defect of the poor air tightness of the plastic shell and improve the air tightness of the shell of the lithium ion battery. Because the optimal heat conductivity of the aluminum alloy material is used, the radiation performance of the lithium ion battery in work can be improved to be helpful for the normal use of the lithium ion battery, and the service life of the lithium ion battery can be prolonged.
Description
Technical field
The utility model relates to battery case, especially a kind of casing of lithium ion battery with composite structure.
Background technology
Lithium ion battery is a kind of battery with high-rate discharge ability, is a kind of high energy density cells.It is compared with onesize nickel-cadmium cell, Ni-MH battery, and the electric weight deposit is maximum, the lightest, the longest-lived of weight.Therefore, lithium ion battery had become the battery of various power-equipment first-selections already.
Lithium ion battery is by the positive pole of a lithium-containing compound as active material, one telling and the lithium material of desorb lithium metal or the carbonizable substance negative pole as active material, and one deck can insulate and can give the separator of electron ion conducting and contain lithium hexafluoro phosphate (LiPF
6) or lithium perchlorate (LiCIO
4) nonaqueous electrolyte and shell form.Because electrolyte has very big corrosivity, therefore, lithium ion battery is to being immersed in the shell that positive and negative electrode in the electrolyte need be equipped with corrosion resistance and good.At present, lithium ion battery adopts the stronger polymer shell of corrosion resistance usually.Though the polymer casing of lithium ion battery can satisfy resistance to corrosion, there is following defective:
One, the intensity of polymer casing of lithium ion battery is lower, easy deformation;
Two, the fire resistance of polymer casing of lithium ion battery is poor, easily burning;
Three, the polymer casing of lithium ion battery to spread thermal effect poor;
Four, polymer casing of lithium ion battery life-span that can be recycled is short;
Five, the poor air-tightness of polymer casing of lithium ion battery.
The utility model content
Technical problem to be solved in the utility model is to remedy the shortcoming that the above-mentioned background technology exists, and proposes a kind of high strength, high sealing, corrosion resistant casing of lithium ion battery with composite structure.
Technical problem of the present utility model is solved by the following technical programs.
This casing of lithium ion battery with composite structure comprises: the polymer housing that is provided with the electrode fairlead.
The characteristics of this casing of lithium ion battery with composite structure are:
The polymer housing is wrapped in the metal shell that matches with its surface, and metal shell is provided with and the corresponding through hole of polymer housing top electrode fairlead.
Technical problem of the present utility model is solved by following further technical scheme.
Described metal shell is an aluminum alloy casing.
Described metal shell surface longitudinal is provided with the concavo-convex groove face that can improve its radiating surface.
Described polymer housing outer wall vertically is provided with the reinforcement groove.
Described metal shell inwall is provided with the embedded groove that matches with polymer housing outer wall waling groove.
Design principle of the present utility model is: giving full play on the strong basis of plastic material corrosion resistance, overcoming the existing defective of individual layer polymer casing of lithium ion battery by increasing metal shell.
The beneficial effect that the utility model is compared with prior art had:
One, is arranged on the outer metal shell of polymer housing and not only can improves its resistance to deformation intensity, and can improve the outward appearance of battery case.
Two, metal shell can not burn, and it can prevent effectively that lithium ion battery is because of the burned damage of external environment influence.
Three, metal shell has stronger air-tightness, and it can remedy the defective of polymer housing poor air-tightness, improves the sealing of casing of lithium ion battery.
Four, the splendid heat conductivity of utilizing aluminum alloy materials and being had can improve and spread hotly in the lithium ion battery work, has both helped the normal use of lithium ion battery, can prolong the useful life of lithium ion battery again.
Five, because this casing of lithium ion battery with composite structure is difficult for deformed damaged, can improve the life-span that recycles of lithium ion battery effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the another kind of structural representation of the utility model embodiment.
Embodiment
Contrast accompanying drawing and the utility model is further described below in conjunction with embodiment.
Embodiment 1: casing of lithium ion battery with composite structure as shown in Figure 1, its profile is identical with existing like product, is flat rectangular configuration.It is made up of polymer inner casing 1 and aluminum alloy casing 2.
Described polymer inner casing 1 is provided with the polymer housing 11 of opening 12 by an end and the polymer cap 13 of opening 12 sealings can be constituted, and described polymer housing 11 has smooth even curface.Described polymer cap 13 is provided with the electrode fairlead of installing for the battery positive and negative electrode 14.
Described aluminum alloy casing 2 is made of Al-alloy casing 21 that is provided with port 22 and the Aluminum Alloy Cover 23 that its port 22 can be sealed.Described Al-alloy casing 21 has smooth smooth inner wall and shell surface.Described Aluminum Alloy Cover 23 is provided with polymer cap 13 top electrodes draws 14 corresponding through holes 24.
The polymer housing 11 of described polymer inner casing 1 is embedded in the Al-alloy casing 21 of aluminum alloy casing 2 with proper fit system, forms the housing of plastic-aluminum combined structure.Polymer cap 13 and Aluminum Alloy Cover 23 are placed on the opening 12 of polymer housing 11 with polymer cap 13 after finishing the assembling of core of lithium ion cell in plastic-aluminum combined structure housing, utilize thermofussion welding that it is sealed.Then Aluminum Alloy Cover 23 is covered in the port 22 of Al-alloy casing 21, its sealing is got final product with metal welding.
Embodiment 2: casing of lithium ion battery with composite structure as shown in Figure 2, and its structure is substantially the same manner as Example 1, and difference only is: polymer inner casing 1 outer wall vertically is provided with reinforcement groove 15; Aluminum alloy casing 2 inwalls are provided with the embedded groove 25 that matches with polymer inner casing 1 outer wall waling groove 15, and aluminum alloy casing 2 surfaces are provided with the concavo-convex groove face 26 that can improve its radiating surface.Cooperate with aluminum alloy casing 2 inlaying of inwall embedded groove 25 by means of being separately positioned on polymer inner casing 1 outer wall reinforcement groove 15, can form the casing of lithium ion battery with composite structure that a kind of structure is better than embodiment 1.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, its framework form can be flexible and changeable, can the subseries product.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (7)
1, a kind of casing of lithium ion battery with composite structure comprises: be provided with the polymer housing of electrode fairlead, it is characterized in that:
The polymer housing is wrapped in the metal shell that matches with its surface, and metal shell is provided with and the corresponding through hole of polymer housing top electrode fairlead.
2, casing of lithium ion battery with composite structure according to claim 1 is characterized in that:
Described metal shell is an aluminum alloy casing.
3, casing of lithium ion battery with composite structure according to claim 1 and 2 is characterized in that:
Described metal shell surface longitudinal is provided with the concavo-convex groove face that can improve its radiating surface.
4, casing of lithium ion battery with composite structure according to claim 3 is characterized in that:
Described polymer housing outer wall vertically is provided with the reinforcement groove.
5, casing of lithium ion battery with composite structure according to claim 4 is characterized in that:
Described metal shell inwall is provided with the embedded groove that matches with polymer housing outer wall waling groove.
6, casing of lithium ion battery with composite structure according to claim 5 is characterized in that:
Described polymer inner casing (1) is provided with the polymer housing (11) of opening (12) by an end and the polymer cap (13) of opening (12) sealing can be constituted, and polymer cap (13) is provided with the electrode fairlead of installing for the battery positive and negative electrode (14).
7, casing of lithium ion battery with composite structure according to claim 6 is characterized in that:
Aluminum alloy casing (2) is by the Al-alloy casing that is provided with port (22) (21) and the Aluminum Alloy Cover (23) of its port (22) sealing can be constituted, and Aluminum Alloy Cover (23) is provided with polymer cap (13) top electrode draws (14) corresponding through hole (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201311258U CN201247785Y (en) | 2008-07-25 | 2008-07-25 | Lithium ion battery case with compound structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201311258U CN201247785Y (en) | 2008-07-25 | 2008-07-25 | Lithium ion battery case with compound structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247785Y true CN201247785Y (en) | 2009-05-27 |
Family
ID=40731610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201311258U Expired - Lifetime CN201247785Y (en) | 2008-07-25 | 2008-07-25 | Lithium ion battery case with compound structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247785Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838805A (en) * | 2010-05-25 | 2010-09-22 | 江苏天鹏电源有限公司 | Rust-proof treatment method of lithium battery steel shell |
| CN102244207A (en) * | 2011-05-25 | 2011-11-16 | 杭州海孚新能源科技有限公司 | Combined type shell structure of lithium ion battery |
| CN103367661A (en) * | 2012-04-10 | 2013-10-23 | 罗伯特·博世有限公司 | Hard shell battery housing having a temperature-control device |
| DE102012213919A1 (en) | 2012-08-06 | 2014-02-06 | Robert Bosch Gmbh | Battery cell i.e. lithium ion battery cell for battery in electric motor powered car, has electrically insulating seal provided between housing and current collector, where material of seal includes nanoparticles |
| CN103972430A (en) * | 2013-02-05 | 2014-08-06 | 三星Sdi株式会社 | Battery pack |
| CN108878727A (en) * | 2018-07-14 | 2018-11-23 | 苏州源欣江碳纤维科技有限公司 | Carbon fiber battery case |
| CN108987614A (en) * | 2017-05-31 | 2018-12-11 | 深圳市比亚迪锂电池有限公司 | A kind of battery case and battery |
| CN110970581A (en) * | 2019-12-23 | 2020-04-07 | 东莞塔菲尔新能源科技有限公司 | Light lithium battery shell and preparation method thereof |
-
2008
- 2008-07-25 CN CNU2008201311258U patent/CN201247785Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838805A (en) * | 2010-05-25 | 2010-09-22 | 江苏天鹏电源有限公司 | Rust-proof treatment method of lithium battery steel shell |
| CN102244207A (en) * | 2011-05-25 | 2011-11-16 | 杭州海孚新能源科技有限公司 | Combined type shell structure of lithium ion battery |
| CN103367661A (en) * | 2012-04-10 | 2013-10-23 | 罗伯特·博世有限公司 | Hard shell battery housing having a temperature-control device |
| DE102012213919A1 (en) | 2012-08-06 | 2014-02-06 | Robert Bosch Gmbh | Battery cell i.e. lithium ion battery cell for battery in electric motor powered car, has electrically insulating seal provided between housing and current collector, where material of seal includes nanoparticles |
| CN103972430A (en) * | 2013-02-05 | 2014-08-06 | 三星Sdi株式会社 | Battery pack |
| CN108987614A (en) * | 2017-05-31 | 2018-12-11 | 深圳市比亚迪锂电池有限公司 | A kind of battery case and battery |
| CN108987614B (en) * | 2017-05-31 | 2022-02-08 | 深圳市比亚迪锂电池有限公司 | Battery shell and battery |
| CN108878727A (en) * | 2018-07-14 | 2018-11-23 | 苏州源欣江碳纤维科技有限公司 | Carbon fiber battery case |
| CN110970581A (en) * | 2019-12-23 | 2020-04-07 | 东莞塔菲尔新能源科技有限公司 | Light lithium battery shell and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhong Lei Tian Energy Technology Co., Ltd. Assignor: Zhong Xinjia|Lei Tian Battery Technology Co., Ltd. Contract record no.: 2010990000223 Denomination of utility model: Casing of lithium ion battery with composite structure Granted publication date: 20090527 License type: Exclusive License Record date: 20100427 |
|
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhong Xinjia Inventor before: Zhong Xinjia |
|
| ASS | Succession or assignment of patent right |
Owner name: LEITIAN WENSIDUN (SHENZHEN) BATTERY CO., LTD. Free format text: FORMER OWNER: LEITIAN BATTERY TECHNOLOGY CO., LTD. Effective date: 20141205 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: HONG KONG, CHINA TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141205 Address after: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation area before Bay Street No. 1 Qianhai road at the Shenzhen Hong Kong Cooperation Area Management Bureau office building A201 room (Qianhai settled in Shenzhen City, Secretary of Commerce Co. Ltd.) Patentee after: Lei Tian Winston (Shenzhen) Battery Co., Ltd. Address before: Room 2108, Gloucester Tower, landmark fifteen, Queen 's Road Central, central, Hongkong, China Patentee before: Leitian Battery Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A (in Shenzhen Qianhai City Secretary of Commerce Co., Ltd.) Patentee after: Ray Winston Battery Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation area before Bay Street No. 1 Qianhai road at the Shenzhen Hong Kong Cooperation Area Management Bureau office building A201 room (Qianhai settled in Shenzhen City, Secretary of Commerce Co. Ltd.) Patentee before: Lei Tian Winston (Shenzhen) Battery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |
|
| CX01 | Expiry of patent term |