CN1540792A - 一种软包装锂离子动力电池电芯的制作方法 - Google Patents

一种软包装锂离子动力电池电芯的制作方法 Download PDF

Info

Publication number
CN1540792A
CN1540792A CNA2003101034261A CN200310103426A CN1540792A CN 1540792 A CN1540792 A CN 1540792A CN A2003101034261 A CNA2003101034261 A CN A2003101034261A CN 200310103426 A CN200310103426 A CN 200310103426A CN 1540792 A CN1540792 A CN 1540792A
Authority
CN
China
Prior art keywords
pole
positive
length
plate
positive plate
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.)
Granted
Application number
CNA2003101034261A
Other languages
English (en)
Other versions
CN1266800C (zh
Inventor
载 岳
岳载
其鲁
晨晖
慈云祥
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.)
CITIC Guoan Mengguli New Energy Technology Co Ltd
Original Assignee
Zhongxinguoan Mengguli Power Supply 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 Zhongxinguoan Mengguli Power Supply Technology Co Ltd filed Critical Zhongxinguoan Mengguli Power Supply Technology Co Ltd
Priority to CNB2003101034261A priority Critical patent/CN1266800C/zh
Publication of CN1540792A publication Critical patent/CN1540792A/zh
Application granted granted Critical
Publication of CN1266800C publication Critical patent/CN1266800C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Sealing Battery Cases Or Jackets (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

本发明涉及一种软包装锂离子动力电池电芯的制作方法,其特征在于:将n条相同的正极片重叠一起,然后将n个正极片一端焊在正极极耳上组成正极片组,再将n条负极片,其中n-1条的负极片与n个正极片的长度、厚度相同,其宽度大于正极片宽度和一条长于n-1条的长负极片,用隔膜包裹,再逐一将封闭端插入正极片组的极片之间,长负极片在外层,n个负极片露出端焊在一条负极极耳上,组成整体叠片,将长负极片折转180度紧贴在内层的正极片上,再以长出部分为电芯宽度扁平卷绕成电芯,它具有制作方法简单,电池内阻小,适用大容量软包装锂子动力电池电芯的优点及效果。

Description

一种软包装锂离子动力电池电芯的制作方法
技术领域
本发明涉及一种软包装锂离子动力电池电芯的制作方法,属于动力电池部件。
背景技术
目前生产的软包装锂离子动力电池的电芯,有两种制作方法,一种是用单片正极、负极和隔膜三者重叠后卷绕而成,通称卷绕式方法,另一种方法是将正极片、负极片和隔膜切成尺寸近似相同的多个小片,并在每个正、负极片上引出一个极耳,然后按着正极片-隔膜-负极片顺序叠加整齐,通称叠片式方法,第一种方法的缺点是电池内阻大,不适用大容量电池,第二种方法缺点是制作方法复杂,同样不适合做大容量的电池,特别不适合做大容量软包装锂离子动力电池。
发明内容
本发明的目的正是为了克服上述已有技术的缺点与不足而提供一种制作方法简单,电池内阻小,适合大容量的软包装锂离子动力电池的电芯的制作方法,从而提高了电池的质量。
本发明的目的是通过下列技术方案实现的:
软包装锂离子动力电池电芯的制作方法,其特征在于它按下述步骤进行:
a)将n条相同长度、宽度和厚度的正极片(3)重叠对齐在一起,然后将n个正极片一端焊在一条正极极耳(1)上,组成正极片组;
b)再将与正极片相同数量的n条负极片,其中n-1条的负极片(4)与n个正极片的长度、厚度相同,其宽度大于正极片宽度2-3mm和一条长于n-1条的长度,其长出的长度为电芯宽度的长负极片(6),分别用隔膜包裹,且负极片一端露出,另端封闭,再逐一将封闭端插入正极片组的极片之间呈交错排列,长于n-1条长度的负极片在外层,n个负极片末包裹隔膜的露出端焊在一条负极极耳(2)上,组成整体叠片;
c)最后将外层的长负极片折转180度紧贴在内层的正极片(3)上,再用常规方法以长出部分为电芯宽度将整体叠片扁平卷绕成电芯。
其中正极片和负极片的条数为1-25的整数,正、负极片和隔膜俩的长度、宽度及n的数值可根据电池容量选择。
按上述方法制作的电芯用在锂离子电池上,正极片或负极片的电阻,可等效原有正极片或负极片被截成等长的的n片电阻的并联,其并联电阻是原长片电阻的n平方之一,因此大大降低它的阻值,适合做大容量动力电池。
由于采取上述技术方案使本发明技术与已有技术相比具有制作方法简单,电池内阻小,适用大容量软包装锂离子动力电池电芯的优点及效果。
附图说明
图1为本发明电芯展开结构示意图,
图2为图1俯视图,
图3为电芯外观图,
图中(1)为正极极耳,(2)为负极极耳,(3)为正极片,(4)为负极片,(5)为隔膜,(6)为长负极片。
具体实施方式
实施例1
制作一块100Ah的软包装锂离子动力电池电芯,按图1所示,选用20条正极片(3),其长度为540mm,宽度为196mm,厚度为0.15mm,重叠对齐,组成正极片组,20条正极片一端焊在一条正极极耳(1)上,再取20条负极片,宽度为198mm,厚度为0.15mm,其中三条负极片(4)长度为540mm,用三条长度为1100mm,宽度为200mm,厚度为35mm的隔膜(5)分别包裹,另一条长负极片(6)的长度为620mm,用一条长度为1240mm隔膜包裹,上述20条用隔膜包裹的负极片一端露出,另端为封闭,再将用隔膜封闭端分别插入正极片组的正极极片之间呈交错排列,长负极片在外层,最后将长出的80mm折转180度贴紧内层正极片,最后按80mm的宽度将重叠好片子扁平卷绕后,再将负极片未包裹隔膜的露出端焊在负极极耳(2)上,即制作成电池电芯。
实施例2
制作一块5Ah的软包装锂离子动力电池电芯,按图1所示,选用1条正极片(3),其长度为540mm,宽度为196mm,厚度为0.15mm,为正极片组,正极片一端焊在一条正极极耳(1)上,再取条长负极片(6),宽度为198mm,厚度为0.15mm,长度为620mm,用一条长度为1240mm隔膜(5)包裹,用隔膜包裹的长负极片一端露出,另端为封闭,长负极片在外层,最后将长出的80mm折转180度贴紧内层正极片,最后按80mm的宽度将重叠好片子扁平卷绕后,再将负极片未包裹隔膜的露出端焊在负极极耳(2)上,即制作成电池电芯。
实施例3
制作一块20Ah的软包装锂离子动力电池电芯,按图1所示,选用4条正极片(3),其长度为540mm,宽度为196mm,厚度为0.15mm,重叠对齐,组成正极片组,4条正极片一端焊在一条正极极耳(1)上,再取4条负极片,宽度多199mm,厚度为0.15mm,其中三条负极片(4)长度为540mm,用三条长度为1100mm,宽度为200mm,厚度为35mm的隔膜分别包裹,另一条长负极片的长度为620mm,用一条长度为1240mm隔膜包裹,上述4条用隔膜(5)包裹的负极片一端露出,另端为封闭,再将用隔膜封闭端分别插入正极片组的正极极片之间呈交错排列,长负极片在外层,最后将长出的80mm折转180度贴紧内层正极片,最后按80mm的宽度将重叠好片子扁平卷绕后,再将负极片未包裹隔膜的露出端焊在负极极耳(2)上,即制作成电池电芯。
实施例4
制作一块250Ah的软包装锂离子动力电池电芯,按图1所示,选用25条正极片(3),其长度为1080mm,宽度为196mm,厚度为0.15mm,重叠对齐,组成正极片组,25条正极片一端焊在一条正极极耳(1)上,再取25条负极片,宽度为198mm,厚度为0.15mm,其中24条负极片(4)长度为1080mm,用24条长度为2200mm,宽度为200mm,厚度为35mm的隔膜(5)分别包裹,另一条长负极片(6)的长度为1180mm,用一条长度为2400mm隔膜包裹,上述25条用隔膜包裹的负极片一端露出,另端为封闭,再将用隔膜封闭端分别插入正极片组的正极极片之间呈交错排列,长负极片在外层,最后将长出的100mm折转180度贴紧内层正极片,最后按100mm的宽度将重叠好片子扁平卷绕后再将负极片未包裹隔膜的露出端焊在负极极耳(2)上,即制作成电池电芯。

Claims (2)

1.一种软包装锂离子动力电池电芯的制作方法,其特征在于它按下述步骤进行:
a)将n条相同长度、宽度和厚度的正极片(3)重叠对齐在一起,然后将n个正极片一端焊在一条正极极耳(1)上,组成正极片组;
b)再将与正极片相同数量的n条负极片,其中n-1条的负极片(4)与n个正极片的长度、厚度相同,其宽度大于正极片宽度2-3mm和一条长于n-1条的长度,其长出的长度为电芯宽度的长负极片(6),分别用隔膜(5)包裹,且负极片一端露出,另端封闭,再逐一将封闭端插入正极片组的极片之间呈交错排列,长于n-1条长度的长负极片在外层,n个负极片未包裹隔膜的露出端焊在一条负极极耳(2)上,组成整体叠片;
c)最后将外层的长负极片折转180度紧贴在内层的正极片(3)上,再用常规方法以长出部分为电芯宽度将整体叠片扁平卷绕成电芯。
2、根据权利要求1所述的电池电芯的制作方法,其特征在于正极片和负极片的条数n为1-25的整数。
CNB2003101034261A 2003-10-31 2003-10-31 一种软包装锂离子动力电池电芯的制作方法 Expired - Fee Related CN1266800C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2003101034261A CN1266800C (zh) 2003-10-31 2003-10-31 一种软包装锂离子动力电池电芯的制作方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2003101034261A CN1266800C (zh) 2003-10-31 2003-10-31 一种软包装锂离子动力电池电芯的制作方法

Publications (2)

Publication Number Publication Date
CN1540792A true CN1540792A (zh) 2004-10-27
CN1266800C CN1266800C (zh) 2006-07-26

Family

ID=34333295

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2003101034261A Expired - Fee Related CN1266800C (zh) 2003-10-31 2003-10-31 一种软包装锂离子动力电池电芯的制作方法

Country Status (1)

Country Link
CN (1) CN1266800C (zh)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007107037A1 (en) * 2006-03-20 2007-09-27 Citic Guoan Mengguli New Energy Technology Co., Ltd. A soft packaged and high capacity lithium ion battery and the manufacture method of the same
CN100414742C (zh) * 2006-11-07 2008-08-27 曾坚义 卡扣式滤芯聚合物电池的极耳焊接方法
CN100438139C (zh) * 2005-08-25 2008-11-26 比亚迪股份有限公司 热安全性电池及其制备方法
WO2009079961A1 (en) * 2007-12-25 2009-07-02 Byd Company Limited Optimized dimensional relationships for an electrochemical cell having coiled core
CN1992415B (zh) * 2005-12-30 2010-05-05 比亚迪股份有限公司 卷绕电极组结构及采用该结构的二次电池以及该结构的卷绕方法
US8007935B2 (en) 2006-10-30 2011-08-30 Byd Co., Ltd. Plate assembly, core and lithium ion battery
CN102227031A (zh) * 2011-05-20 2011-10-26 无锡市明杨电池有限公司 一种具有高倍率放电特性的锂离子电池
US8092936B2 (en) 2007-12-25 2012-01-10 Byd Co. Ltd. Electrochemical cell having a coiled core
US8178230B2 (en) 2007-12-18 2012-05-15 Byd Co., Ltd. Battery pack
US8178225B2 (en) 2007-11-29 2012-05-15 Byd Co., Ltd. Battery and preparation method thereof
US8193770B2 (en) 2007-12-25 2012-06-05 BYD Co. Ltd Battery system for a vehicle having an over-current/over-temperature protective feature
US8276695B2 (en) 2007-12-25 2012-10-02 Byd Co. Ltd. Battery electrode sheet
US8420254B2 (en) 2007-12-25 2013-04-16 Byd Co. Ltd. End cover assembly for an electrochemical cell
CN104810561A (zh) * 2014-03-20 2015-07-29 万向A一二三系统有限公司 一种锂离子动力电池电芯的制备方法
US10038182B2 (en) 2011-05-12 2018-07-31 Ningbo Institute Of Material Technology And Engineering, Chinese Academy Of Sciences Graphene coating modified electrode plate for lithium secondary battery and method for producing the same

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100438139C (zh) * 2005-08-25 2008-11-26 比亚迪股份有限公司 热安全性电池及其制备方法
CN1992415B (zh) * 2005-12-30 2010-05-05 比亚迪股份有限公司 卷绕电极组结构及采用该结构的二次电池以及该结构的卷绕方法
WO2007107037A1 (en) * 2006-03-20 2007-09-27 Citic Guoan Mengguli New Energy Technology Co., Ltd. A soft packaged and high capacity lithium ion battery and the manufacture method of the same
CN101401250B (zh) * 2006-03-20 2010-05-19 中信国安盟固利新能源科技有限公司 一种软包装大容量锂离子电池及其制作方法
US8007935B2 (en) 2006-10-30 2011-08-30 Byd Co., Ltd. Plate assembly, core and lithium ion battery
CN100414742C (zh) * 2006-11-07 2008-08-27 曾坚义 卡扣式滤芯聚合物电池的极耳焊接方法
US8178225B2 (en) 2007-11-29 2012-05-15 Byd Co., Ltd. Battery and preparation method thereof
US8178230B2 (en) 2007-12-18 2012-05-15 Byd Co., Ltd. Battery pack
US8202644B2 (en) 2007-12-25 2012-06-19 Byd Co. Ltd. Protection cover for an end cap assembly of a battery cell
US8404379B2 (en) 2007-12-25 2013-03-26 Byd Co., Ltd. Vehicle with a battery system
US10381632B2 (en) 2007-12-25 2019-08-13 Shenzhen Byd Auto R&D Company Limited Construction of electrochemical storage cell with conductive bridge
US8193770B2 (en) 2007-12-25 2012-06-05 BYD Co. Ltd Battery system for a vehicle having an over-current/over-temperature protective feature
WO2009079961A1 (en) * 2007-12-25 2009-07-02 Byd Company Limited Optimized dimensional relationships for an electrochemical cell having coiled core
US8276695B2 (en) 2007-12-25 2012-10-02 Byd Co. Ltd. Battery electrode sheet
EA017128B1 (ru) * 2007-12-25 2012-10-30 Бид Компани Лимитед Оптимизированные отношения размеров для электрохимического аккумуляторного элемента, имеющего намотанную сердцевину
US8383257B2 (en) 2007-12-25 2013-02-26 Byd Co. Ltd. Electrochemical storage cell with blow out vents
US8399116B2 (en) 2007-12-25 2013-03-19 Byd Co. Ltd. Optimized dimensional relationships for an electrochemical cell having a coiled core
US8092936B2 (en) 2007-12-25 2012-01-10 Byd Co. Ltd. Electrochemical cell having a coiled core
US8420254B2 (en) 2007-12-25 2013-04-16 Byd Co. Ltd. End cover assembly for an electrochemical cell
US8865335B2 (en) 2007-12-25 2014-10-21 Byd Co. Ltd. Electrochemical storage cell
US10147930B2 (en) 2007-12-25 2018-12-04 Shenzhen Byd Auto R&D Company Limited Construction of electrochemical storage cell with conductive block
US9741996B2 (en) 2007-12-25 2017-08-22 Byd Co. Ltd. Construction of electrochemical storage cell
US10038182B2 (en) 2011-05-12 2018-07-31 Ningbo Institute Of Material Technology And Engineering, Chinese Academy Of Sciences Graphene coating modified electrode plate for lithium secondary battery and method for producing the same
CN102227031A (zh) * 2011-05-20 2011-10-26 无锡市明杨电池有限公司 一种具有高倍率放电特性的锂离子电池
CN104810561B (zh) * 2014-03-20 2018-06-19 万向一二三股份公司 一种锂离子动力电池电芯的制备方法
CN104810561A (zh) * 2014-03-20 2015-07-29 万向A一二三系统有限公司 一种锂离子动力电池电芯的制备方法

Also Published As

Publication number Publication date
CN1266800C (zh) 2006-07-26

Similar Documents

Publication Publication Date Title
CN1266800C (zh) 一种软包装锂离子动力电池电芯的制作方法
WO2013177815A1 (zh) 立体三角形结构的非晶合金变压器铁心
CN1750295A (zh) 折叠式锂离子电池极组及其制作方法
JP2007510259A (ja) リチウムイオン2次電池
CN212907831U (zh) 一种锂离子电池
CN103943885A (zh) 一种弯形软包锂离子充电电池及其制作方法
CN1874045A (zh) 电池卷芯半自动卷绕设备
CN110718718B (zh) 一种电芯卷绕机及电芯卷绕方法
CN201528015U (zh) 一种方形电池卷绕装置
KR101370801B1 (ko) 2차 전지 내부 셀 스택 제조 방법
CN102208688A (zh) 卷绕式高功率锂电池电芯及制作方法
CN105811016A (zh) 一种叠片锂离子电池的制作方法
EP0039901B1 (fr) Bobine électrique d'inductance shunt et machine automatique pour découper des tôles
CN105742721A (zh) 一种高能比、低内阻的圆柱锂离子电池
CN102157754A (zh) 一种锂离子电芯的卷绕方法
WO2000041252A2 (en) Arrangement of electrochemical cells
CN113299879A (zh) 软包方形电池电极结构、电池、电子设备及制备工艺
CN1967929A (zh) 聚合物电池的卷绕生产方法
CN207938729U (zh) 一种大电流锂锰扣式电池
CN113437348B (zh) 一种双向可弯曲柔性电池及制造方法
CN218101372U (zh) 叠片电池的叠片设备及电芯
CN207303265U (zh) 360°卷绕双极耳电芯
CN209447966U (zh) 一种卷绕式叠片电池
CN100490244C (zh) 一种锂离子电池电芯的制作方法
CN110277538A (zh) 一种叠片电池极片的制作方法及叠片电池

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CITIC GUOAN MENGGULI NEW ENERGY SCIENCE CO., LTD.

Free format text: FORMER OWNER: ZHONGXINGUOAN MENGGULI ELECTRIC SOURCE TECHNOLOGY CO., LTD.

Effective date: 20061110

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20061110

Address after: 102200 Beijing city Changping District Bai Fu Road 18

Patentee after: Zhongxin Guoan Mengguli New Energy Sources Science and Technology Co., Ltd.

Address before: 102200 Beijing city Changping District Bai Fu Road 18

Patentee before: Zhongxinguoan Mengguli Power Supply Technology Co., Ltd.

EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhongxinguoan Mengguli Power Supply Technology Co., Ltd.

Assignor: Zhongxin Guoan Mengguli New Energy Sources Science and Technology Co., Ltd.

Contract record no.: 2011110000118

Denomination of invention: Method for making core of soft packaged lithium ion dynamic battery

Granted publication date: 20060726

License type: Exclusive License

Open date: 20041027

Record date: 20110720

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

Granted publication date: 20060726

Termination date: 20151031

EXPY Termination of patent right or utility model