CN202172092U - Rubberizing structure for reeling core of lithium ion battery - Google Patents
Rubberizing structure for reeling core of lithium ion battery Download PDFInfo
- Publication number
- CN202172092U CN202172092U CN2011202843329U CN201120284332U CN202172092U CN 202172092 U CN202172092 U CN 202172092U CN 2011202843329 U CN2011202843329 U CN 2011202843329U CN 201120284332 U CN201120284332 U CN 201120284332U CN 202172092 U CN202172092 U CN 202172092U
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- CN
- China
- Prior art keywords
- adhesive tape
- battery
- lithium ion
- core
- ion battery
- 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 - Fee Related
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- 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 utility model relates to a rubberizing structure for a reeling core of a lithium ion battery, which belongs to the field of lithium ion battery manufacturing. The rubberizing structure comprises a bottom adhesive tape, two side adhesive tapes and a top adhesive tape, wherein the top adhesive tape spans the top end of the battery reeling core in an n-shaped manner; the two side adhesive tapes are respectively coated on two sides of the battery reeling core; the side adhesive tapes are positioned above the top adhesive tape at the superposed part of the top adhesive tape and the side adhesive tapes; and the bottom adhesive tape is coated on the bottom edge of the battery reeling core and covers the bottom edges of the two side adhesive tapes. The rubberizing structure provided by the utility model is simple, saves materials, can protect the side edge, the top and the bottom of the battery reeling core, and simultaneously prevent the battery reeling core from being too thick, thereby improving the security of the lithium ion battery.
Description
Technical field
The utility model relates to a kind of lithium ion battery coil heart rubberizing structure, belongs to lithium ion battery and makes the field.
Background technology
Lithium ion battery is advantages such as operating voltage height, volume are little, light weight, environmental protection because it has, and in the secondary cell field, occupy important status.The application of lithium ion battery relates to fields such as communications industry, electric tool, large-scale energy storage and electrokinetic cell.Along with the field of lithium ion battery applications constantly enlarges, each field is also increasingly high to the performance requirement of lithium ion battery, especially security performance.Estimate the security performance of lithium ion battery, except performances such as electrode slice, barrier film and electrolyte, the adhesive tape adhesive structure on battery roll core surface is also very important to the influence of lithium ion battery security ability.
The rubberizing mode of the volume core of rectangular lithium ion battery generally has three kinds, i.e. top glue, primer and side glue.
Chinese patent CN201655910U has announced a kind of rubberizing structure of lithium ion battery coil core, and in this structure, stop adhesive uses large stretch of rubberizing structure; Stop adhesive is on the side elevation that the C type is wrapped in electric core, adhesive tape with two sides and plane all bonding wrap up, this kind structure has following shortcoming: battery is after activation; Pole piece has certain expansion; But owing to stop the parcel constraint of adhesive tape, the volume core has slight distortion, causes the thickness abnormity of battery.In addition, this kind pasted mode, if the rubberizing edge is concordant with volume core top edge; Will wrap up aluminium pole ears together; Be not easy to paste top glue protection aluminium pole ears, and if the rubberizing edge leans on down, the top edge of rolling up the core two sides will can not get the protection of adhesive tape; Go into shell and cause short circuit easily, have certain potential safety hazard.
Chinese patent CN201387921Y has announced a kind of rubberizing structure of lithium ion battery coil core, described volume heart rubberizing structure, and stop adhesive on the battery roll core and bottom glue are connected as a single entity; In the production process between the volume core adhesive tape bond each other, be unfavorable for producing in batches, and this structural base adhesive tape only plays the effect of protection volume heart bottom; Sticker has certain space apart from the top edge of volume core, and the side of volume core can not get protection, and the volume core of lithium ion battery is when going into shell; Can there be collision and friction unavoidably; The side of volume core is scratched easily and is caused short circuit, has potential safety hazard, and the security performance of battery is difficult to guarantee.
Summary of the invention
The utility model is to the deficiency of prior art; Provide a kind of side, top and bottom simple to operate, battery roll core can access the sticker structure of the lithium ion battery coil core of sufficient protection; It can improve the security performance of battery, and the thickness of finished product obviously improves.
The technical scheme of the utility model is following:
A kind of lithium ion battery coil core rubberizing structure; It comprises primer band, both sides adhesive tape and top adhesive tape; It is characterized in that: described top adhesive tape is n shape across on the top of battery roll core, and the both sides adhesive tape is coated on respectively on the dual-side of battery roll core, and the primer band is coated on the base of battery roll core.
The base of said side adhesive tape is 0.5-2cm apart from the battery roll core bottom.
Preferably, the primer band covers the bottom margin of both sides adhesive tape.The advantage of this kind design: the primer band plays protection battery roll core bottom on the one hand, when preventing core winding into shell on the other hand the side adhesive tape sticking not firm be taken up or the bottom margin of side adhesive tape on turn over, scratched by aluminum hull and cause rolling up core, unsafe acts take place.
Preferably, the length of primer band is than the long 1-2mm of the width of battery roll core.
Described top adhesive tape and side adhesive tape superposed part, the side adhesive tape is positioned at the top of top adhesive tape.The advantage of this kind design: the top adhesive tape sticking is not firm when preventing core winding into shell is taken up, and the adhesive tape that takes up might be clipped between aluminum hull and the cover plate, during laser seal welding insecure, cause the gas leakage of electric core to be scrapped; In addition, adhesive tape is taken up, and can increase the thickness at this place, and the thickness of render electrical core exceeds standard and scraps.
The beneficial effect of the utility model is:
1, the side adhesive tape of the battery roll core of the utility model and top adhesive tape are difficult for turning over or being taken up, and play the effect on side, top and the base of protection battery roll core, bring great convenience to battery core winding into shell, and guarantee that the thickness of battery is normal.
2, simple in structure, the fail safe of saving material, improving lithium ion battery of the utility model.
3, the utility model is coated with adhesive tape on top, side and the base of battery roll core, prevents that adhesive tape parcel constraint entire cell volume core from causing the thickness abnormity of battery, and the thickness of finished product is significantly improved.
Description of drawings
Fig. 1 is the structural representation of the utility model battery roll core rubberizing structure;
Fig. 2 is the vertical view of the utility model battery roll core rubberizing structure;
Wherein, 1, side adhesive tape; 2, top adhesive tape; 3, aluminium pole ears; 4, primer band; 5, battery roll core.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done to further describe, but the utility model protection range is not limited thereto.
Embodiment 1:
Like Fig. 1, shown in Figure 2, a kind of lithium ion battery coil core rubberizing structure comprises primer band 4, both sides adhesive tape and top adhesive tape 2; Top adhesive tape 2 is n shape across on the top of battery roll core 5, and the two ends of top adhesive tape 2 stick on respectively on the two relative upright sides of battery roll core 5, and top adhesive tape 2 plays protection aluminium pole ears 3 discord battery roll cores 5 EDGE CONTACT; Prevent to puncture after the lug bending pole piece and the barrier film of volume core marginal position and cause short circuit; When pasting top adhesive tape 2, break aluminium pole ears 3 on one side off with the fingers and thumb gently earlier, on battery roll core 5 tops across sticking top adhesive tape 2; The aluminium pole ears 3 that resets then, top adhesive tape 2 separate aluminium pole ears 3 and battery roll core 5 edges.
The both sides adhesive tape is coated on respectively on the dual-side of battery roll core 5; The base of side adhesive tape 1 is apart from battery roll core 5 bottom 1cm, one side on the upright side that sticks on battery roll core of side adhesive tape 1, another side sticks on another relative upright side of battery roll core; Top adhesive tape 2 and side adhesive tape 1 superposed part; Side adhesive tape 1 is positioned at the top of top adhesive tape 2, and top adhesive tape 2 was pasted not strongly and is taken up when the top that side adhesive tape 1 is positioned at top adhesive tape 2 prevented that battery roll core 5 from going into shell, and the adhesive tape that takes up might be clipped between aluminum hull and the cover plate; Welding is insecure during laser seal, causes the gas leakage of electric core to be scrapped; In addition, adhesive tape is taken up, and can increase the thickness at this place, and the thickness of render electrical core exceeds standard and scraps.
Embodiment 2:
A kind of lithium ion battery coil core rubberizing structure, structure such as embodiment 1 are said, and difference is:
The base of side adhesive tape 1 is apart from battery roll core 5 bottom 2cm,
The length of primer band 4 is than the long 2mm of the width of battery roll core 5.
Claims (5)
1. lithium ion battery coil core rubberizing structure; Comprise primer band, both sides adhesive tape and top adhesive tape; It is characterized in that: described top adhesive tape is n shape across on the top of battery roll core, and the both sides adhesive tape is coated on respectively on the dual-side of battery roll core, and the primer band is coated on the base of battery roll core.
2. a kind of lithium ion battery coil core rubberizing structure as claimed in claim 1 is characterized in that: the base of said side adhesive tape is 0.5-2cm apart from the battery roll core bottom.
3. a kind of lithium ion battery coil core rubberizing structure as claimed in claim 1 is characterized in that: the primer band covers the bottom margin of both sides adhesive tape.
4. a kind of lithium ion battery coil core rubberizing structure as claimed in claim 1, it is characterized in that: the length of said primer band is than the long 1-2mm of the width of battery roll core.
5. a kind of lithium ion battery coil core rubberizing structure as claimed in claim 1 is characterized in that: described top adhesive tape and side adhesive tape superposed part, the side adhesive tape is positioned at the top of top adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202843329U CN202172092U (en) | 2011-08-05 | 2011-08-05 | Rubberizing structure for reeling core of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202843329U CN202172092U (en) | 2011-08-05 | 2011-08-05 | Rubberizing structure for reeling core of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172092U true CN202172092U (en) | 2012-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202843329U Expired - Fee Related CN202172092U (en) | 2011-08-05 | 2011-08-05 | Rubberizing structure for reeling core of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172092U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856589A (en) * | 2012-08-28 | 2013-01-02 | 奇瑞汽车股份有限公司 | Encapsulation method for electric core of power lithium ion battery |
| CN105514352A (en) * | 2015-12-14 | 2016-04-20 | 东莞新能源科技有限公司 | Electrode assembly and lithium-ion battery cell adopting same |
| CN108615924A (en) * | 2015-12-14 | 2018-10-02 | 东莞新能源科技有限公司 | Battery core and the lithium ion battery for using battery core |
| CN111463497A (en) * | 2020-04-17 | 2020-07-28 | 山东聚信新能源科技有限公司 | Local deformation improvement method of high-energy-density flexible package ion battery and battery |
| CN112490402A (en) * | 2019-09-12 | 2021-03-12 | 比亚迪股份有限公司 | Battery, battery module, battery pack and automobile |
| WO2021195850A1 (en) * | 2020-03-30 | 2021-10-07 | 宁德新能源科技有限公司 | Cell and battery having cell |
| CN114175302A (en) * | 2021-03-30 | 2022-03-11 | 宁德新能源科技有限公司 | Battery core and battery |
-
2011
- 2011-08-05 CN CN2011202843329U patent/CN202172092U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856589A (en) * | 2012-08-28 | 2013-01-02 | 奇瑞汽车股份有限公司 | Encapsulation method for electric core of power lithium ion battery |
| CN105514352A (en) * | 2015-12-14 | 2016-04-20 | 东莞新能源科技有限公司 | Electrode assembly and lithium-ion battery cell adopting same |
| CN108615924A (en) * | 2015-12-14 | 2018-10-02 | 东莞新能源科技有限公司 | Battery core and the lithium ion battery for using battery core |
| US20180375160A1 (en) * | 2015-12-14 | 2018-12-27 | Dongguan Amperex Technology Limited | Electrode assembly, and lithium ion electric roll using the electrode assembly |
| US10283816B2 (en) * | 2015-12-14 | 2019-05-07 | Dongguan Amperex Technology Limited | Electrode assembly, and lithium ion electric roll using the electrode assembly |
| US11355775B2 (en) | 2015-12-14 | 2022-06-07 | Dongguan Amperex Technology Limited | Cathode sheet and lithium ion electric roll using the same |
| US10840557B2 (en) | 2015-12-14 | 2020-11-17 | Dongguan Amperex Technology Limited | Electrode assembly, and lithium ion electric roll using the electrode assembly |
| WO2021047450A1 (en) * | 2019-09-12 | 2021-03-18 | 比亚迪股份有限公司 | Battery, battery module, battery pack, and automobile |
| CN112490402A (en) * | 2019-09-12 | 2021-03-12 | 比亚迪股份有限公司 | Battery, battery module, battery pack and automobile |
| WO2021195850A1 (en) * | 2020-03-30 | 2021-10-07 | 宁德新能源科技有限公司 | Cell and battery having cell |
| CN113728496A (en) * | 2020-03-30 | 2021-11-30 | 宁德新能源科技有限公司 | Battery cell and battery with same |
| CN113728496B (en) * | 2020-03-30 | 2023-07-25 | 宁德新能源科技有限公司 | Battery cell and battery with same |
| CN111463497B (en) * | 2020-04-17 | 2021-05-11 | 山东聚信新能源科技有限公司 | Local deformation improvement method of high-energy-density flexible package ion battery and battery |
| CN111463497A (en) * | 2020-04-17 | 2020-07-28 | 山东聚信新能源科技有限公司 | Local deformation improvement method of high-energy-density flexible package ion battery and battery |
| CN114175302A (en) * | 2021-03-30 | 2022-03-11 | 宁德新能源科技有限公司 | Battery core and battery |
| WO2022204943A1 (en) * | 2021-03-30 | 2022-10-06 | 宁德新能源科技有限公司 | Battery cell and battery |
| CN114175302B (en) * | 2021-03-30 | 2024-03-26 | 宁德新能源科技有限公司 | Battery cell and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20200805 |