CN204179167U - Takeup type quadrate lithium battery - Google Patents

Takeup type quadrate lithium battery Download PDF

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Publication number
CN204179167U
CN204179167U CN201420447891.0U CN201420447891U CN204179167U CN 204179167 U CN204179167 U CN 204179167U CN 201420447891 U CN201420447891 U CN 201420447891U CN 204179167 U CN204179167 U CN 204179167U
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CN
China
Prior art keywords
battery
core
volume pin
takeup type
utility
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
CN201420447891.0U
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Chinese (zh)
Inventor
贾飞翔
马振忠
王瑞州
张敏敏
王宗忠
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.)
Shaanxi De Fei New Energy Technology Co Ltd
Original Assignee
Shaanxi De Fei New Energy Technology Co Ltd
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 Shaanxi De Fei New Energy Technology Co Ltd filed Critical Shaanxi De Fei New Energy Technology Co Ltd
Priority to CN201420447891.0U priority Critical patent/CN204179167U/en
Application granted granted Critical
Publication of CN204179167U publication Critical patent/CN204179167U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The utility model discloses a kind of takeup type quadrate lithium battery, comprise core, core comprises disposable volume pin, and disposable volume pin is wound with battery anode slice and battery cathode sheet, and two surfaces of battery anode slice and battery cathode sheet are equipped with barrier film.The material of disposable volume pin is polyethylene or polypropylene.The width of disposable volume pin be described core width 85-89%, be highly 45-55% that the 75-92% of described core height, thickness are described core thickness.The cycle life and the security performance that improve battery are high.

Description

Takeup type quadrate lithium battery
Technical field
The utility model relates to a kind of new forms of energy, lithium ion battery (group), particularly relates to a kind of takeup type quadrate lithium battery.
Background technology
At present, lithium ion battery (group) is widely used in each field with its superior performance.
In prior art, quadrate lithium battery particularly takeup type quadrate lithium battery because of core hollow to cause in core lamination process that pole piece deformation in edge is large, pole piece easy fracture and dry linting, core hollow pole piece outer tight in pine, battery charging let slip that ectonexine pole piece bulging factor in journey is inconsistent, internal layer pole piece repeatedly easily produces after discharge and recharge and analyse the problems such as lithium.Battery cycle life is poor, and battery security is poor.
Utility model content
The purpose of this utility model is to provide a kind of takeup type quadrate lithium battery high with security performance that have extended cycle life.
The purpose of this utility model is achieved through the following technical solutions:
Takeup type quadrate lithium battery of the present utility model, comprises core, and described core comprises disposable volume pin, and described disposable core is wound with battery anode slice and battery cathode sheet, and two surfaces of described battery anode slice and battery cathode sheet are equipped with barrier film.
The technical scheme provided as can be seen from above-mentioned the utility model, the takeup type quadrate lithium battery that the utility model embodiment provides, because core comprises disposable volume pin, disposable volume pin is wound with battery anode slice and battery cathode sheet, two surfaces of described battery anode slice and battery cathode sheet are equipped with barrier film, and the cycle life and the security performance that improve battery are high.
Accompanying drawing explanation
Fig. 1 a is the planar structure schematic diagram of disposable volume pin in the utility model embodiment;
Fig. 1 b is the end face structure schematic diagram of disposable volume pin in the utility model embodiment;
Fig. 2 is the structural representation of core in the utility model embodiment.
Embodiment
To be described in further detail the utility model embodiment below.
Takeup type quadrate lithium battery of the present utility model, its preferably embodiment be:
Comprise core, described core comprises disposable volume pin, and described disposable volume pin is wound with battery anode slice and battery cathode sheet, and two surfaces of described battery anode slice and battery cathode sheet are equipped with barrier film.
The material of described disposable volume pin is polyethylene or polypropylene.
The width of described disposable volume pin be described core width 85-89%, be highly 45-55% that the 75-92% of described core height, thickness are described core thickness.
Takeup type quadrate lithium battery of the present utility model, solve quadrate lithium battery particularly takeup type quadrate lithium battery to cause in core lamination process pole piece deformation in edge large because of core hollow, pole piece easy fracture and dry linting; Pine in core hollow pole piece is outer tight, it is inconsistent that ectonexine pole piece bulging factor in journey is let slip in battery charging, and internal layer pole piece repeatedly easily produces after discharge and recharge and analyses the problems such as lithium.Improve battery cycle life difference, the problems such as battery security difference, the cycle life and the security performance that improve battery are high.
Specific embodiment:
As shown in Figure 1 a, 1 b, for pin schematic diagram rolled up by disposable high-intensity polyethylene (PP) or polypropylene (PE), together with rolling up pin lamination, toasting, being fitted in battery after pole piece coiling.Volume pin width is the 85-89% of core width, and be highly the 75-92% of core height, thickness is the 45-55% of core thickness.
As shown in Figure 2, be core structural representation prepared by the utility model, comprise disposable volume pin 1, battery anode slice 2, battery cathode sheet 3, barrier film 4.
The utility model effectively solve quadrate lithium battery particularly takeup type quadrate lithium battery to cause in core lamination process pole piece deformation in edge large because of core hollow, pole piece easy fracture and dry linting; Pine in core hollow pole piece is outer tight, it is inconsistent that ectonexine pole piece bulging factor in journey is let slip in battery charging, and internal layer pole piece repeatedly easily produces after discharge and recharge and analyses lithium etc.Improve battery cycle life difference, the problems such as battery security difference.Because winding changes disposable volume pin into, save the input of high automation winding apparatus, improve production efficiency simultaneously.To enterprise's survival and development, Foreign Competition plays vital effect.
The utility model application principle is simple and reliable, feasible, and implementation process is easy to control, handling safety, flow process are smooth and easy, easy processing easily purchased by raw material, is mature and reliable technically, possesses commercial application.In addition, application the utility model is enhanced productivity, cost-saving, high in technological content, added value large, is also feasible economically, and has larger social effect.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.

Claims (2)

1. a takeup type quadrate lithium battery, comprises core, it is characterized in that, described core comprises disposable volume pin, and described disposable volume pin is wound with battery anode slice and battery cathode sheet, and two surfaces of described battery anode slice and battery cathode sheet are equipped with barrier film;
The material of described disposable volume pin is polyethylene or polypropylene.
2. takeup type quadrate lithium battery according to claim 1, is characterized in that, the width of described disposable volume pin is the 85-89% of described core width, is highly 45-55% that the 75-92% of described core height, thickness are described core thickness.
CN201420447891.0U 2014-08-08 2014-08-08 Takeup type quadrate lithium battery Expired - Fee Related CN204179167U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420447891.0U CN204179167U (en) 2014-08-08 2014-08-08 Takeup type quadrate lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420447891.0U CN204179167U (en) 2014-08-08 2014-08-08 Takeup type quadrate lithium battery

Publications (1)

Publication Number Publication Date
CN204179167U true CN204179167U (en) 2015-02-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420447891.0U Expired - Fee Related CN204179167U (en) 2014-08-08 2014-08-08 Takeup type quadrate lithium battery

Country Status (1)

Country Link
CN (1) CN204179167U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104966852A (en) * 2015-07-07 2015-10-07 李震祺 Square lithium ion battery winding cell and manufacturing method for same
CN106410257A (en) * 2016-11-07 2017-02-15 珠海格力电器股份有限公司 Winding supporting core, secondary battery, manufacturing method of secondary battery, and battery winding machine
WO2020062295A1 (en) * 2018-09-30 2020-04-02 深圳市大疆创新科技有限公司 Lithium cell, smart battery, and method for manufacturing lithium cell

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104966852A (en) * 2015-07-07 2015-10-07 李震祺 Square lithium ion battery winding cell and manufacturing method for same
CN104966852B (en) * 2015-07-07 2017-11-24 李震祺 A kind of square lithium ion battery winding battery core and preparation method thereof
CN106410257A (en) * 2016-11-07 2017-02-15 珠海格力电器股份有限公司 Winding supporting core, secondary battery, manufacturing method of secondary battery, and battery winding machine
CN106410257B (en) * 2016-11-07 2024-01-30 珠海格力电器股份有限公司 Winding support core, secondary battery, method of manufacturing the same, and battery winding machine
WO2020062295A1 (en) * 2018-09-30 2020-04-02 深圳市大疆创新科技有限公司 Lithium cell, smart battery, and method for manufacturing lithium cell

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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: 20150225

Termination date: 20190808

CF01 Termination of patent right due to non-payment of annual fee