CN203434238U - Negative pole nickel sheet and lithium ion battery cover - Google Patents

Negative pole nickel sheet and lithium ion battery cover Download PDF

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Publication number
CN203434238U
CN203434238U CN201320433509.6U CN201320433509U CN203434238U CN 203434238 U CN203434238 U CN 203434238U CN 201320433509 U CN201320433509 U CN 201320433509U CN 203434238 U CN203434238 U CN 203434238U
Authority
CN
China
Prior art keywords
negative pole
nickel sheet
pole nickel
ion battery
lithium ion
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
Application number
CN201320433509.6U
Other languages
Chinese (zh)
Inventor
刘璟
卜雪涛
马遂杰
张大治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Lishen Battery JSCL
Original Assignee
Tianjin Lishen Battery JSCL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Lishen Battery JSCL filed Critical Tianjin Lishen Battery JSCL
Priority to CN201320433509.6U priority Critical patent/CN203434238U/en
Application granted granted Critical
Publication of CN203434238U publication Critical patent/CN203434238U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

The utility model provides a negative pole nickel sheet which comprises a nickel sheet main body. One end of the nickel sheet main body is provided with a rivet hole; the middle end of the nickel sheet main body is provided with a crease close to the rivet hole. The utility model also relates to a lithium ion battery cover which comprises the negative pole nickel sheet, a cover plate, an insulating material frame and a rivet, wherein the negative pole nickel sheet is sequentially riveted and firmly fixed with the insulating material frame and the cover plate by the rivet hole. Due to the ingenious design of the crease of the negative pole nickel sheet, the tail part of the negative pole nickel sheet does not cock after the negative pole nickel sheet is riveted, and the negative pole nickel sheet clings to the insulating material frame; furthermore, the negative pole nickel sheet is in a horizontal plane form, so that a negative pole lug is in horizontal contact with the negative pole nickel sheet in a welding process, the welding performance of the negative pole lug and the negative pole nickel sheet can be guaranteed, the welding tension of the negative pole lug is improved, the possibility of loose weld of the negative pole lug can be reduced in a battery assembling process, and the yield of the lithium ion battery cover with the negative pole nickel sheet and a lithium ion battery can be increased. Therefore, the negative pole nickel sheet and the lithium ion battery cover can meet the demand of large-scale industrial production.

Description

A kind of negative pole nickel sheet and lithium-ion battery
Technical field
The utility model relates to electrokinetic cell and manufactures field, especially a kind of negative pole nickel sheet and lithium-ion battery.
Background technology
Square lithium ion battery has been widely used in the mobile products such as MP3, MP4, personal digital assistant, mobile phone, digital camera, toy, has the advantages such as voltage is high, electricity capacity large, long circulation life, memory-less effect, quality is light, working range is wide.But related industry is in high speed development, the safety problem of lithium ion battery is still perplexing people.
In prior art, the battery cover of square lithium ion battery generally includes cover plate, insulating material framework, negative pole nickel sheet and rivet.In the assembling process of battery, utmost point group negative pole lug welding, on battery cover negative pole nickel sheet, if negative electrode lug fails to contact with negative pole nickel sheet level, will affect the welding pulling force of negative electrode lug, there is the negative electrode lug sealing-off phenomenon in battery assembling process, thereby seriously affected the yield of non-defective unit battery.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of negative pole nickel sheet.
Another technical problem to be solved in the utility model is to provide a kind of lithium-ion battery of applying above-mentioned negative pole nickel sheet.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A nickel sheet, comprises nickel sheet main body, and nickel sheet main body one end is provided with rivet hole, at nickel sheet main body middle part, near rivet hole one end, is provided with folding line one.
Preferably, above-mentioned negative pole nickel sheet, described folding line is the folding line at 20 ° of angles before riveted joint, is reduced to 15 ° of angles after riveted joint.
, comprising cover plate, insulating material framework, above-mentioned negative pole nickel sheet and rivet, described negative pole nickel sheet utilizes rivet hole and described insulating material framework and cover plate is riveted successively and closely fixing.
Preferably, above-mentioned lithium-ion battery, the material of described insulating material framework is polytetrafluoroethylene alkoxyl resin (PFA).
The utility model structure has following beneficial effect:
Above-mentioned negative pole nickel sheet, simple in structure, by the ingehious design of folding line, make negative pole nickel sheet afterbody perk can not occur after riveted joint, can be close on insulating material framework, guarantee that negative pole nickel sheet is a horizontal plane simultaneously, and then in welding process, make negative electrode lug to contact with negative pole nickel sheet level, guaranteed the welding performance of negative electrode lug and negative pole nickel sheet, increased the welding pulling force of negative electrode lug, reduced the negative electrode lug sealing-off phenomenon in battery assembling process, improved and applied the lithium-ion battery of this negative pole nickel sheet and the non-defective unit yield of lithium ion battery, the needs that are applicable to large-scale industrial production.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of applying the lithium-ion battery of negative pole nickel sheet described in the utility model.
In figure: 1-cover plate 2-insulating material framework 3-nickel sheet main body 4-folding line
Embodiment
For further illustrating the utility model, now coordinate accompanying drawing to be described in detail:
As shown in Figure 1, described negative pole nickel sheet, comprises nickel sheet main body 3, and nickel sheet main body 3 one end are provided with rivet hole, at nickel sheet main body 3 middle parts, near rivet hole one end, is provided with folding line 4 one, and described folding line 4 is the folding line 4 at 20 ° of angles before riveted joint, is reduced to 15 ° of angles after riveted joint.
Described lithium-ion battery, comprise cover plate 1, the insulating material framework 2 of polytetrafluoroethylene alkoxyl resin (PFA) material, above-mentioned negative pole nickel sheet and rivet, described negative pole nickel sheet utilizes rivet hole and described insulating material framework 2 and cover plate 1 to rivet successively and closely fix, because described negative pole nickel sheet has folding line 4 one near rivet hole one end, make negative pole nickel sheet afterbody perk can not occur after riveted joint, can be close on insulating material framework 2; Guarantee that negative pole nickel sheet is a horizontal plane, and then negative electrode lug can contact with negative pole nickel sheet level in welding process simultaneously.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (4)

1. a negative pole nickel sheet, comprises nickel sheet main body, and nickel sheet main body one end is provided with rivet hole, it is characterized in that: at nickel sheet main body middle part, near rivet hole one end, be provided with folding line one.
2. negative pole nickel sheet according to claim 1, is characterized in that: described folding line is the folding line at 20 ° of angles before riveted joint, is reduced to 15 ° of angles after riveted joint.
3. a lithium-ion battery, comprises negative pole nickel sheet and rivet described in cover plate, insulating material framework, claim 1 or 2, and described negative pole nickel sheet utilizes rivet hole and described insulating material framework and cover plate is riveted successively and closely fixing.
4. lithium-ion battery according to claim 3, is characterized in that: the material of described insulating material framework is polytetrafluoroethylene alkoxyl resin.
CN201320433509.6U 2013-07-19 2013-07-19 Negative pole nickel sheet and lithium ion battery cover Expired - Fee Related CN203434238U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320433509.6U CN203434238U (en) 2013-07-19 2013-07-19 Negative pole nickel sheet and lithium ion battery cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320433509.6U CN203434238U (en) 2013-07-19 2013-07-19 Negative pole nickel sheet and lithium ion battery cover

Publications (1)

Publication Number Publication Date
CN203434238U true CN203434238U (en) 2014-02-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320433509.6U Expired - Fee Related CN203434238U (en) 2013-07-19 2013-07-19 Negative pole nickel sheet and lithium ion battery cover

Country Status (1)

Country Link
CN (1) CN203434238U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105870495A (en) * 2016-06-06 2016-08-17 惠州亿纬锂能股份有限公司 Hard shell lithium ion battery and preparing method thereof
CN113923890A (en) * 2021-09-16 2022-01-11 景旺电子科技(龙川)有限公司 Circuit board mounting method and circuit board

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105870495A (en) * 2016-06-06 2016-08-17 惠州亿纬锂能股份有限公司 Hard shell lithium ion battery and preparing method thereof
CN113923890A (en) * 2021-09-16 2022-01-11 景旺电子科技(龙川)有限公司 Circuit board mounting method and circuit board

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140212

Termination date: 20150719

EXPY Termination of patent right or utility model