CN202495510U - Lithium-ion battery and tab structure thereof - Google Patents
Lithium-ion battery and tab structure thereof Download PDFInfo
- Publication number
- CN202495510U CN202495510U CN2012200547486U CN201220054748U CN202495510U CN 202495510 U CN202495510 U CN 202495510U CN 2012200547486 U CN2012200547486 U CN 2012200547486U CN 201220054748 U CN201220054748 U CN 201220054748U CN 202495510 U CN202495510 U CN 202495510U
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- pole piece
- pole
- tab
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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 belongs to the technical field of a lithium-ion battery, and particularly relates to a tab structure with convenience for operation and capability of eliminating battery back step. The tab structure comprises a pole piece connecting section, a bending section and a pole section; the pole piece connecting section is connected with a pole piece; the bending section is connected with the pole piece connecting section; the pole section is connected with the bending section; an included angle between the pole piece connecting section and the bending section is 90 degrees +/- 5 degrees; and the included angle between the bending section and the pole section is 90 degrees +/- 5 degrees. In comparison with the prior art and according to the tab structure provided by the utility model, before packaging the battery, a battery tab is bent to a necessary height, so that the back step of the battery can be furthest eliminated, therefore more configuration spaces are saved for a battery protective plate. The bent battery tab is difficult to deform in the subsequent working processes, so that short circuiting is prevented; and a sealant attached on the tab is difficult to displace in the packaging process, so that a better packaging effect can be obtained. Moreover, the utility model further discloses the lithium-ion battery with the tab.
Description
Technical field
The utility model belongs to technical field of lithium ion, is specifically related to a kind of easy to operate, the extreme ear structure that can eliminate battery " back step ".
Background technology
Lithium ion battery has been widely used in the multiple portable set because of advantages such as its energy density are high, average open-circuit voltage is high and have extended cycle life.In recent years, along with the development of lithium-ion electric pool technology, its cost performance improves constantly, and lithium ion battery size and dimension flexible design, combination property are good, and its increasing demand in each aspect is widened.
At present, the lithium ion battery in many mobile devices all is built-in.Built-in lithium ion battery generally comprises packaging bag, is contained in the electric core in the said packaging bag and is poured into the electrolyte in the said packaging bag; The outer general label of packaging bag; Electricity core front end is provided with lug, and said lug then is welded to connect with the baffle of electric core front end.Wherein, lug generally adopts the orthoscopic bonding jumper.There is certain height poor (hereinafter to be referred as " back step ") in the battery that uses the lug of this structure to process between battery head lug encapsulation region (being the closedtop district) and electric core main body.
Along with development of technology, increasing lithium ion battery demand merchant has higher requirement for the apparent size design of battery.The existence of " back step " can influence the apparent size of battery, also may influence battery in mobile device with the fitness of other spare and accessory parts, cause battery unavailable.
In view of this, necessary a kind of easy to operate, extreme ear structure of being easy to eliminate battery " back step " is provided.
The utility model content
One of purpose of the utility model is: to the deficiency of prior art, and a kind of easy to operate, extreme ear structure of being easy to eliminate battery " back step " is provided.
In order to address the above problem, the utility model adopts following technical scheme:
A kind of extreme ear structure; Comprise the pole piece linkage section that connects pole piece, the bending segment that is connected with said pole piece linkage section, the pole section that is connected with said bending segment; Angle between described pole piece linkage section and the bending segment is 90 ° ± 5 °, and the angle between described bending segment and the pole section is 90 ± 5 °.During practical operation, compress electric core head,, make it approach zero at utmost to eliminate battery " back step " highly with closedtop head briquetting.
As a kind of improvement of the utility model extreme ear structure, the length of described pole piece linkage section is 0～1mm.
As a kind of improvement of the utility model extreme ear structure, the height of described bending segment is the half the of electric core thickness.
As a kind of improvement of the utility model extreme ear structure, post fluid sealant on the described bending segment, to play the effect of insulated enclosure.
As a kind of improvement of the utility model extreme ear structure, described pole Duan Yudian core bottom is concordant.
As a kind of improvement of the utility model extreme ear structure, post fluid sealant on the described pole section, to play the effect of insulated enclosure.
With respect to prior art, the utlity model has following effect:
The extreme ear structure that the utility model provided before cell package, is folded into desired height with cell polar ear, can at utmost eliminate " the back step " of battery, puts the space thereby save more polygamy for electric core baffle.Through the cell polar ear of bending, be not easy in subsequent handling process and use, to deform simultaneously, avoided short circuit; And the fluid sealant that is attached to bending segment and pole section in encapsulation process, be not easy the displacement, can obtain better packaging effect.
Another purpose of the utility model is to provide a kind of lithium ion battery; Comprise packaging bag, be contained in the interior electric core of said packaging bag, be poured into the electrolyte in the said packaging bag; Said electric core front end is provided with lug, and said lug is the described extreme ear structure of above-mentioned paragraph.
With respect to prior art, the structure of the utility model lithium ion battery is compact more, and energy density is higher, and design is more flexible, can satisfy the dimensional requirement of built-in lithium ion battery.
Description of drawings
Fig. 1 is the utility model extreme ear structure sketch map;
Fig. 2 is the structural representation of the utility model lithium ion battery.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
As shown in Figure 1; A kind of extreme ear structure of the utility model; Comprise the pole piece linkage section 1 that connects pole piece, the bending segment 2 that is connected with said pole piece linkage section 1, the pole section 3 that is connected with said bending segment 2; Angle between described pole piece linkage section 1 and the bending segment 2 is 90 ° ± 5 °, and the angle between described bending segment 2 and the pole section 3 is 90 ± 5 °." the back step " that contain the lithium ion battery of this extreme ear structure can be eliminated well, puts the space thereby save more polygamy for electric core baffle, with satisfy built-in lithium ion battery in mobile device with the cooperating of other spare and accessory parts.
Wherein, the length of described pole piece linkage section 1 is 0～1mm.
The height of described bending segment 2 is the half the of electric core thickness, specifically can about the 0.5mm that squints.
Described pole section 3 is concordant with electric core bottom.
With respect to prior art, the utility model only can reach the purpose that farthest reduces or eliminate " the back step " of battery through the bending of lug, and the lug through bending, and is not easy to cause distortion in the operation process, has avoided short circuit; And the fluid sealant 4 that is attached to bending segment 2 and pole section 3 is not easy displacement in encapsulation process, can obtain better packaging effect.
As shown in Figure 2, a kind of lithium ion battery comprises packaging bag 5, is contained in electric core 6 in the said packaging bag 5, is poured into the electrolyte in the said packaging bag 5, and said electric core 6 front ends are provided with lug 7, and said lug 7 is the described extreme ear structure of above-mentioned paragraph.
With respect to prior art, the structure of the utility model lithium ion battery is compact more, and energy density is higher, and design is more flexible, can satisfy the dimensional requirement of built-in lithium ion battery.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.The embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (7)
1. extreme ear structure; Comprise the pole piece linkage section that connects pole piece; The bending segment that is connected with said pole piece linkage section; The pole section that is connected with said bending segment is characterized in that: the angle between described pole piece linkage section and the bending segment is 90 ° ± 5 °, and the angle between described bending segment and the pole section is 90 ± 5 °.
2. extreme ear structure according to claim 1 is characterized in that: the length of described pole piece linkage section is 0～1mm.
3. extreme ear structure according to claim 1 is characterized in that: the height of described bending segment is the half the of electric core thickness.
4. extreme ear structure according to claim 1 is characterized in that: post fluid sealant on the described bending segment.
5. extreme ear structure according to claim 1 is characterized in that: described pole Duan Yudian core bottom is concordant.
6. extreme ear structure according to claim 1 is characterized in that: post fluid sealant on the described pole section.
7. a lithium ion battery comprises packaging bag, is contained in the interior electric core of said packaging bag, is poured into the electrolyte in the said packaging bag, and said electric core front end is provided with lug, it is characterized in that: said lug is each described extreme ear structure of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200547486U CN202495510U (en) | 2012-02-20 | 2012-02-20 | Lithium-ion battery and tab structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200547486U CN202495510U (en) | 2012-02-20 | 2012-02-20 | Lithium-ion battery and tab structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495510U true CN202495510U (en) | 2012-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200547486U Expired - Lifetime CN202495510U (en) | 2012-02-20 | 2012-02-20 | Lithium-ion battery and tab structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495510U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810523A (en) * | 2014-01-23 | 2015-07-29 | 罗伯特·博世有限公司 | storage battery single cell having at least one electrode assembly |
| CN105355830A (en) * | 2015-11-30 | 2016-02-24 | 江门市拓联电子科技有限公司 | Anti-short-circuit lithium battery electrode lug |
| CN108054334A (en) * | 2017-10-31 | 2018-05-18 | 珠海格力电器股份有限公司 | A kind of battery pole ear and battery |
| CN109192916A (en) * | 2018-09-14 | 2019-01-11 | 骆驼集团武汉光谷研发中心有限公司 | Universal soft-package battery mould group |
| CN109428041A (en) * | 2017-09-04 | 2019-03-05 | 宁德新能源科技有限公司 | Battery pole ear forming method and battery |
| CN109659594A (en) * | 2018-12-11 | 2019-04-19 | 努比亚技术有限公司 | A kind of battery and the electronic product with it |
| CN110021777A (en) * | 2018-01-08 | 2019-07-16 | 比亚迪股份有限公司 | Pole piece, battery unit, battery modules and automobile |
| WO2021195924A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery cell structure and battery |
| CN114614069A (en) * | 2022-05-09 | 2022-06-10 | 宁德时代新能源科技股份有限公司 | Battery cell, manufacturing method thereof, battery and electric device |
-
2012
- 2012-02-20 CN CN2012200547486U patent/CN202495510U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810523A (en) * | 2014-01-23 | 2015-07-29 | 罗伯特·博世有限公司 | storage battery single cell having at least one electrode assembly |
| CN105355830A (en) * | 2015-11-30 | 2016-02-24 | 江门市拓联电子科技有限公司 | Anti-short-circuit lithium battery electrode lug |
| CN109428041A (en) * | 2017-09-04 | 2019-03-05 | 宁德新能源科技有限公司 | Battery pole ear forming method and battery |
| CN108054334A (en) * | 2017-10-31 | 2018-05-18 | 珠海格力电器股份有限公司 | A kind of battery pole ear and battery |
| CN110021777A (en) * | 2018-01-08 | 2019-07-16 | 比亚迪股份有限公司 | Pole piece, battery unit, battery modules and automobile |
| CN109192916A (en) * | 2018-09-14 | 2019-01-11 | 骆驼集团武汉光谷研发中心有限公司 | Universal soft-package battery mould group |
| CN109192916B (en) * | 2018-09-14 | 2024-02-02 | 骆驼集团武汉光谷研发中心有限公司 | Universal soft package battery module |
| CN109659594A (en) * | 2018-12-11 | 2019-04-19 | 努比亚技术有限公司 | A kind of battery and the electronic product with it |
| WO2021195924A1 (en) * | 2020-03-31 | 2021-10-07 | 宁德新能源科技有限公司 | Battery cell structure and battery |
| CN114614069A (en) * | 2022-05-09 | 2022-06-10 | 宁德时代新能源科技股份有限公司 | Battery cell, manufacturing method thereof, battery and electric device |
| CN114614069B (en) * | 2022-05-09 | 2022-08-26 | 宁德时代新能源科技股份有限公司 | Battery cell, manufacturing method thereof, battery and electric device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |
|
| CX01 | Expiry of patent term |