CN108886126B - 二次电池 - Google Patents
二次电池 Download PDFInfo
- Publication number
- CN108886126B CN108886126B CN201680069506.5A CN201680069506A CN108886126B CN 108886126 B CN108886126 B CN 108886126B CN 201680069506 A CN201680069506 A CN 201680069506A CN 108886126 B CN108886126 B CN 108886126B
- Authority
- CN
- China
- Prior art keywords
- width
- secondary battery
- tab
- width direction
- packaging
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
- H01M50/557—Plate-shaped terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/198—Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
一种二次电池,其包括卷绕式裸电芯(1)、包装袋(2)以及密封片(3)。卷绕式裸电芯(1)包括隔离膜(11)和极耳(12)。密封片(3)包裹卷绕式裸电芯(1)的极耳(12)的一部分,用于将卷绕式裸电芯(1)的极耳(12)从二次电池的包装袋(2)中密封伸出,具有:封装部(31),位于所述二次电池的包装袋(2)的封装区域(P);以及伸入部(32),设置于包装袋(2)的内部。其中,封装部(31)沿宽度方向(W)的第一宽度(W1)大于极耳(12)的第二宽度(W2),伸入部(32)沿宽度方向(W)的第三宽度(W3)不小于极耳(12)的第二宽度(W2)且伸入部(32)沿宽度方向(W)的第三宽度(W3)小于封装部(31)的第一宽度(W1),伸入部(32)沿宽度方向(W)的外侧缘与隔离膜(11)在宽度方向(W)上间隔开,且封装部(31)的沿上下方向(L)的下侧缘与隔离膜(11)的上侧缘在上下方向(L)上间隔开。
Description
技术领域
本发明涉及电池领域,尤其涉及一种二次电池。
背景技术
参照图1,现有技术的二次电池中的密封片3为常规的矩形,是为了保证密封片可以有效的被包装袋2的顶部封印。
然而,如果密封片3边缘和隔离膜11相距太近,就会有很大概率使得密封片和隔膜内圈发生干涉(如图1中的干涉区域S),影响隔离膜11的卷绕,降低卷绕优率。
现有技术还可以减少密封片3的肩宽来减少和隔离膜11的干涉,但是密封片3的肩宽不能无限减少,目前1.0mm的肩宽已经是极限了,再减少会造成封装漏液的风险。
发明内容
鉴于背景技术中存在的问题,本发明的目的在于提供一种二次电池,其能实现包装袋与卷绕式裸电芯的安全密封,同时避免卷绕式裸电芯在卷绕成型时隔离膜与密封片发生干涉,提高卷绕效率和卷绕质量。
为了实现上述目的,本发明提供了一种二次电池,其包括卷绕式裸电芯、包装袋以及密封片。
卷绕式裸电芯包括隔离膜和极耳。
密封片包裹卷绕式裸电芯的极耳的一部分,用于将卷绕式裸电芯的极耳从二次电池的包装袋中密封伸出,具有:封装部,位于所述二次电池的包装袋的封装区域;以及伸入部,设置于包装袋的内部。
其中,封装部沿宽度方向的第一宽度大于极耳的第二宽度,伸入部沿宽度方向的第三宽度不小于极耳的第二宽度且伸入部沿宽度方向的第三宽度小于封装部的第一宽度,伸入部沿宽度方向的外侧缘与隔离膜在宽度方向上间隔开,且封装部的沿上下方向的下侧缘与隔离膜的上侧缘在上下方向上间隔开。
本发明的有益效果如下:
在根据本发明的二次电池中,封装部沿宽度方向的第一宽度大于极耳的第二宽度,且封装部位于所述二次电池的包装袋的封装区域,从而使卷绕式裸电芯的极耳从二次电池的包装袋中密封伸出,经过封装后能够避免二次电池在极耳从包装袋中伸出的部位处漏液;伸入部包裹卷绕式裸电芯的极耳位于包装袋内部的部分,防止过多极耳裸露造成的电池内部短路和腐蚀;同时,伸入部沿宽度方向的第三宽度不小于极耳的第二宽度且伸入部沿宽度方向的第三宽度小于封装部的第一宽度,并保证伸入部沿宽度方向的外侧缘与隔离膜在宽度方向上间隔开,这样能够避免卷绕式裸电芯在卷绕成型时隔离膜与伸入部沿宽度方向的外侧缘发生干涉,提高卷绕效率和卷绕质量;由于伸入部的第三宽度的缩小,可以提高二次电池的宽度以及极耳间隔的极限尺寸,增加产品尺寸的多样性;封装部的沿上下方向的下侧缘与隔离膜的上侧缘在上下方向上间隔开,能够避免二次电池在封装时隔离膜与封装部以及包装袋干涉,提高了对极耳封装的密封效果。
附图说明
图1为现有技术的二次电池的剖视图;
图2为根据本发明的二次电池的立体图,其中包装袋省略;
图3为根据本发明的二次电池的剖视图,其中包装袋省略;
图4为图3圆圈部分的放大图;
图5为根据本发明的二次电池的示意图。
其中,附图标记说明如下:
1卷绕式裸电芯 L1第一长度
11隔离膜 D1第一距离
12极耳 D2第二距离
2包装袋 W宽度方向
3密封片 L上下方向
31封装部 C圆角
32伸入部 A轴线
W1第一宽度 S干涉区域
W2第二宽度 P封装区域
W3第三宽度
具体实施方式
下面参照附图来详细说明本发明的二次电池。
参照图2至图5,根据本发明的二次电池包括卷绕式裸电芯1、包装袋2以及密封片3。
卷绕式裸电芯1包括隔离膜11和极耳12。
密封片3包裹卷绕式裸电芯1的极耳12的一部分,用于将卷绕式裸电芯1的极耳12从二次电池的包装袋2中密封伸出,具有:封装部31,位于所述二次电池的包装袋2的封装区域P;以及伸入部32,设置于包装袋2的内部。
其中,封装部31沿宽度方向W的第一宽度W1大于极耳12的第二宽度W2,伸入部32沿宽度方向W的第三宽度W3不小于极耳12的第二宽度W2且伸入部32沿宽度方向W的第三宽度W3小于封装部31的第一宽度W1,伸入部32沿宽度方向W的外侧缘与隔离膜11在宽度方向W上间隔开,且封装部31的沿上下方向L的下侧缘与隔离膜11的上侧缘在上下方向L上间隔开。
在根据本发明的二次电池中,封装部31沿宽度方向W的第一宽度W1大于极耳12的第二宽度W2,且封装部31位于所述二次电池的包装袋2的封装区域P,从而使卷绕式裸电芯1的极耳12从二次电池的包装袋2中密封伸出,经过封装后能够避免二次电池在极耳12从包装袋2中伸出的部位处漏液;伸入部32包裹卷绕式裸电芯1的极耳12位于包装袋2内部的部分,防止极耳12过多裸露造成的电池内部短路和腐蚀;同时,伸入部32沿宽度方向W的第三宽度W3不小于极耳12的第二宽度W2且伸入部32沿宽度方向W的第三宽度W3小于封装部31的第一宽度W1,并保证伸入部32沿宽度方向W的外侧缘与隔离膜11在宽度方向W上间隔开,这样能够避免卷绕式裸电芯1在卷绕成型时隔离膜11与伸入部32沿宽度方向W的外侧缘发生干涉,提高卷绕效率和卷绕质量;由于伸入部32的第三宽度W3的缩小,可以提高二次电池的宽度以及极耳12间隔的极限尺寸,增加产品尺寸的多样性;封装部31的沿上下方向L的下侧缘与隔离膜11的上侧缘在上下方向L上间隔开,能够避免二次电池在封装时隔离膜11与封装部31以及包装袋2干涉,提高了对极耳12封装的密封效果。
在根据本发明的二次电池中,参照图4,在一实施例中,伸入部32沿宽度方向W的外侧缘到极耳12的沿宽度方向W的外侧缘之间间隔第一距离D1,0mm≤D1≤10mm。
在根据本发明的二次电池中,参照图4,在一实施例中,伸入部32沿宽度方向W的内侧缘到极耳12的沿宽度方向W的内侧缘之间间隔第二距离D2,0mm≤D2≤10mm。
在根据本发明的二次电池中,参照图4,在一实施例中,伸入部32沿上下方向L的第一长度L1,0.2mm≤L1<10mm。
在根据本发明的二次电池中,参照图4,在一实施例中,伸入部32沿宽度方向W的外侧缘与封装部31沿上下方向L的下侧缘之间设有圆角C。在密封片3的成型过程中或者成型后,需要切除部分材料以形成伸入部32,而圆角C能保证密封片3不会对隔离膜造成划痕或撕裂,从而也确保了在密封片伸入部32成型过程中切除部分的易去除。
在根据本发明的二次电池中,在一实施例中,圆角C的半径可为0mm~10mm。
在根据本发明的二次电池中,参照图3和图4,在一实施例中,伸入部32沿上下方向L的下侧缘至少延伸至极耳12突出于卷绕式裸电芯1的极片的位置。伸入部32的下侧缘延伸至极耳12突出于卷绕式裸电芯1的极片的位置,能够包裹极耳12在包装袋2内部的部分,避免所述二次电池的内部短路和极耳12的腐蚀。
在根据本发明的二次电池中,参照图4,在一实施例中,密封片3相对极耳12的平行于上下方向L的轴线A左右对称。
在根据本发明的二次电池中,在一实施例中,所述二次电池的包装袋2可为软包装袋。上述软包装袋由铝塑膜制成。
在根据本发明的二次电池中,在一实施例中,二次电池可为锂离子电池、钠离子电池或锌离子电池。
Claims (10)
1.一种二次电池,包括:
电芯,包括隔离膜,极片和设置于所述极片上的极耳;
包装袋,封装所述电芯;以及
密封片,位于所述极耳的表面,具有:
封装部,位于所述包装袋的封装区域;以及
伸入部,位于所述包装袋的内部;
其特征在于,
沿宽度方向,所述封装部的第一宽度大于所述极耳的第二宽度;
沿宽度方向,所述伸入部的第三宽度不小于所述极耳的第二宽度;
沿宽度方向,所述伸入部的第三宽度小于所述封装部的第一宽度;
所述密封片不与所述隔离膜接触,
其中,沿上下方向,所述封装部的下侧缘与所述隔离膜的上侧缘间隔开,所述伸入部沿上下方向的下侧缘延伸至所述极耳突出于所述电芯的极片的位置,并且所述隔离膜具有高于所述伸入部的所述下侧缘的部分。
2.根据权利要求1所述的二次电池,其特征在于,沿宽度方向,所述伸入部的外侧缘到所述极耳的外侧缘的距离D1,0mm≤D1≤10mm。
3.根据权利要求1所述的二次电池,其特征在于,沿宽度方向,所述伸入部的内侧缘到所述极耳的内侧缘的距离D2,0mm≤D2≤10mm。
4.根据权利要求1所述的二次电池,其特征在于,沿长度方向,所述伸入部的长度L1,0.2mm≤L1<10mm。
5.根据权利要求1所述的二次电池,其特征在于,所述伸入部沿宽度方向的外侧缘与所述封装部沿长度方向的下侧缘之间设有圆角。
6.根据权利要求5所述的二次电池,其特征在于,所述圆角的半径为0mm~10mm。
7.根据权利要求1所述的二次电池,其特征在于,所述伸入部沿长度方向与所述电芯的极片接触。
8.根据权利要求1-7中任一项所述的二次电池,其特征在于,所述密封片相对所述极耳的轴线对称。
9.根据权利要求1所述的二次电池,其特征在于,所述包装袋为软包装袋。
10.根据权利要求1所述的二次电池,其特征在于,所述二次电池为锂离子电池、钠离子电池或锌离子电池。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2016/070298 WO2017117748A1 (zh) | 2016-01-06 | 2016-01-06 | 二次电池 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108886126A CN108886126A (zh) | 2018-11-23 |
CN108886126B true CN108886126B (zh) | 2021-11-26 |
Family
ID=59273340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201680069506.5A Active CN108886126B (zh) | 2016-01-06 | 2016-01-06 | 二次电池 |
Country Status (3)
Country | Link |
---|---|
US (2) | US10886570B2 (zh) |
CN (1) | CN108886126B (zh) |
WO (1) | WO2017117748A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112531156A (zh) * | 2019-09-19 | 2021-03-19 | 株式会社东芝 | 电极组、非水电解质二次电池、电池包及车辆 |
KR20220145410A (ko) * | 2020-03-24 | 2022-10-28 | 동관 파워앰프 테크놀로지 리미티드 | 전기화학 장치 및 전자 장치 |
CN113644389B (zh) * | 2020-04-27 | 2023-05-16 | 北京小米移动软件有限公司 | 电池模组及其制作方法 |
CN112563580B (zh) * | 2020-11-30 | 2022-06-03 | 合肥国轩高科动力能源有限公司 | 一种改善绝缘不良的软包锂电池制造方法 |
CN115458873B (zh) * | 2022-11-11 | 2023-09-26 | 深圳海辰储能控制技术有限公司 | 储能装置、用电设备以及卷绕方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103490031A (zh) * | 2013-08-09 | 2014-01-01 | 范能文 | 一种正极耳、软包锂离子电池和正极耳的制造方法 |
CN203800133U (zh) * | 2014-03-20 | 2014-08-27 | 宁德新能源科技有限公司 | 卷绕式电芯及电化学装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100544119B1 (ko) * | 2003-06-24 | 2006-01-23 | 삼성에스디아이 주식회사 | 파우치형 리튬 이차 전지 |
JP2005222887A (ja) * | 2004-02-09 | 2005-08-18 | Sony Corp | 電極捲回型電池 |
KR101048225B1 (ko) * | 2006-02-23 | 2011-07-08 | 에스케이이노베이션 주식회사 | 고출력 전지용 단락 안전 장치 |
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 |
CN200997416Y (zh) | 2006-12-19 | 2007-12-26 | 比亚迪股份有限公司 | 高安全性能极片及含有该极片的锂离子电池 |
CN201466126U (zh) * | 2009-04-30 | 2010-05-12 | 比亚迪股份有限公司 | 一种单体电池及包括该单体电池的动力电池组 |
CN102610779A (zh) * | 2012-02-07 | 2012-07-25 | 范能文 | 一种正极耳、软包锂离子电池和正极耳的制造方法 |
CN202454645U (zh) * | 2012-02-07 | 2012-09-26 | 范能文 | 一种正极耳和软包锂离子电池 |
KR101370265B1 (ko) * | 2012-04-17 | 2014-03-04 | 주식회사 엘지화학 | 이차전지, 이에 적용되는 이차전지용 부품 및 이차전지의 제조 방법 |
US20140030560A1 (en) * | 2012-07-25 | 2014-01-30 | GM Global Technology Operations LLC | Battery with solid state cooling |
CN203406363U (zh) * | 2013-08-09 | 2014-01-22 | 范能文 | 一种正极耳和软包锂离子电池 |
US10020545B2 (en) * | 2014-11-25 | 2018-07-10 | American Lithium Energy Corporation | Rechargeable battery with resistive layer for enhanced safety |
-
2016
- 2016-01-06 WO PCT/CN2016/070298 patent/WO2017117748A1/zh active Application Filing
- 2016-01-06 CN CN201680069506.5A patent/CN108886126B/zh active Active
-
2018
- 2018-05-31 US US15/994,190 patent/US10886570B2/en active Active
-
2020
- 2020-11-20 US US17/100,639 patent/US11688885B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103490031A (zh) * | 2013-08-09 | 2014-01-01 | 范能文 | 一种正极耳、软包锂离子电池和正极耳的制造方法 |
CN203800133U (zh) * | 2014-03-20 | 2014-08-27 | 宁德新能源科技有限公司 | 卷绕式电芯及电化学装置 |
Also Published As
Publication number | Publication date |
---|---|
CN108886126A (zh) | 2018-11-23 |
US10886570B2 (en) | 2021-01-05 |
US20180277902A1 (en) | 2018-09-27 |
US11688885B2 (en) | 2023-06-27 |
WO2017117748A1 (zh) | 2017-07-13 |
US20210075066A1 (en) | 2021-03-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108886126B (zh) | 二次电池 | |
EP3734685B1 (en) | Battery | |
KR101766966B1 (ko) | 이차 전지의 파우치 폴딩 장치 | |
CN1610166B (zh) | 袋式蓄电池 | |
JP6975942B2 (ja) | 円筒型電池 | |
CN202167546U (zh) | 一种方形软包装电池 | |
CN209785987U (zh) | 二次电池 | |
CN107820641A (zh) | 用于将电池元件固定在电池子模块中的压紧装置和电池子模块 | |
CN112803125B (zh) | 软包扣式锂离子电池及其制作方法 | |
EP3051611B1 (en) | Battery cell comprising means for protecting short circuit | |
CN112086585B (zh) | 电池 | |
KR20170132565A (ko) | 이차전지의 제조방법 | |
WO2021003781A1 (zh) | 二次电池 | |
EP3624208B1 (en) | Cell packaging structure | |
TW201817077A (zh) | 一種同時具有以圈撓方式和堆疊方式生產之優點的二次電池 | |
CN211088324U (zh) | 铝塑膜及软包电池 | |
US11757154B2 (en) | Battery apparatus and electronic device | |
CN205452466U (zh) | 二次电池 | |
CN211605332U (zh) | 一种软包锂离子电池的封装结构 | |
CN113131003A (zh) | 一种软包电芯的封装工艺 | |
JP2016225200A (ja) | 蓄電装置及び蓄電装置の製造方法 | |
KR20130028384A (ko) | 이차전지용 캡 조립체의 제조방법과 그에 따라 제조된 캡 조립체 및 이를 채용한 이차전지 | |
CN203950857U (zh) | 软包装电池及电池模组 | |
US20230369690A1 (en) | Secondary Battery And Method For Manufacturing The Same | |
CN105378966A (zh) | 容纳装置、电池以及机动车辆 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |