CN109565084A - 卷绕式电芯 - Google Patents

卷绕式电芯 Download PDF

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Publication number
CN109565084A
CN109565084A CN201680083816.2A CN201680083816A CN109565084A CN 109565084 A CN109565084 A CN 109565084A CN 201680083816 A CN201680083816 A CN 201680083816A CN 109565084 A CN109565084 A CN 109565084A
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CN
China
Prior art keywords
tab
battery core
collector
pole piece
type battery
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.)
Pending
Application number
CN201680083816.2A
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English (en)
Inventor
郭培培
肖良针
高伟
王可飞
赵义
何平
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Ningde Amperex Technology Ltd
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Ningde Amperex Technology Ltd
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Publication date
Application filed by Ningde Amperex Technology Ltd filed Critical Ningde Amperex Technology Ltd
Priority to CN202210662249.3A priority Critical patent/CN115020825A/zh
Publication of CN109565084A publication Critical patent/CN109565084A/zh
Pending legal-status Critical Current

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Classifications

    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/70—Carriers or collectors characterised by shape or form
    • 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
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

一种卷绕式电芯，包括：第一极片(1)、第一极耳(2)、第二极片(3)、第二极耳(4)以及隔离膜(5)。第一极片包括第一集流体(11)和第一活性物质层(12)。第二极片包括第二集流体(31)和第二活性物质层(32)。第一极片的第一卷绕起始段(B1)的第一集流体的正反两个表面上均未涂覆第一活性物质层并定义为第一头部空白集流体(111)，第一头部空白集流体焊接于一个第一极耳。第二极片形成有第二极耳收容凹槽(33)，第二极耳收容凹槽的底部为第二集流体而周侧为第二活性物质层，第二极耳收容于第二极耳收容凹槽内并电连接于第二极耳收容凹槽处的第二集流体。该卷绕式电芯提高了卷绕式电芯的容量密度并降低了内阻，解决了电芯在循环使用过程中容易变形、循环膨胀率较大的问题。

Description

PCT国内申请，说明书已公开。

Claims (17)

  1. PCT国内申请，权利要求书已公开。
CN201680083816.2A 2016-06-24 2016-06-24 卷绕式电芯 Pending CN109565084A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210662249.3A CN115020825A (zh) 2016-06-24 2016-06-24 卷绕式电芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/087027 WO2017219345A1 (zh) 2016-06-24 2016-06-24 卷绕式电芯

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202210662249.3A Division CN115020825A (zh) 2016-06-24 2016-06-24 卷绕式电芯

Publications (1)

Publication Number Publication Date
CN109565084A true CN109565084A (zh) 2019-04-02

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CN202210662249.3A Pending CN115020825A (zh) 2016-06-24 2016-06-24 卷绕式电芯
CN201680083816.2A Pending CN109565084A (zh) 2016-06-24 2016-06-24 卷绕式电芯

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CN202210662249.3A Pending CN115020825A (zh) 2016-06-24 2016-06-24 卷绕式电芯

Country Status (3)

Country Link
US (1) US11658344B2 (zh)
CN (2) CN115020825A (zh)
WO (1) WO2017219345A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114430095A (zh) * 2022-04-06 2022-05-03 宁德新能源科技有限公司 电化学装置及电子设备
CN114447443A (zh) * 2022-02-11 2022-05-06 宁德新能源科技有限公司 电化学装置、电化学装置的制造方法及用电设备
CN114788085A (zh) * 2021-09-30 2022-07-22 宁德新能源科技有限公司 电芯以及应用所述电芯的用电设备
CN116435670A (zh) * 2023-06-12 2023-07-14 宁德新能源科技有限公司 一种电化学装置及用电设备

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KR20190098560A (ko) * 2018-02-14 2019-08-22 삼성에스디아이 주식회사 전극 조립체 및 이를 포함하는 이차전지
CN110380108B (zh) * 2018-04-12 2021-10-08 宁德新能源科技有限公司 电芯及具有其的电化学装置
CN110808377B (zh) * 2018-08-06 2021-04-27 宁德新能源科技有限公司 电芯、电池以及电子设备
CN110148777A (zh) * 2019-06-10 2019-08-20 合肥众禾动力新能源科技有限公司 一种锂离子电池中间极耳卷芯
CN111554982B (zh) * 2020-05-11 2021-09-07 珠海冠宇电池股份有限公司 卷绕电芯及其制备方法、电池以及电子产品
CN114094045A (zh) * 2021-11-18 2022-02-25 珠海冠宇电池股份有限公司 极片和电池
CN114171852A (zh) * 2021-12-06 2022-03-11 珠海冠宇电池股份有限公司 电芯及电池
CN114361734B (zh) * 2022-03-21 2022-06-17 宁德新能源科技有限公司 电芯组件、电化学装置及用电设备
CN114665228B (zh) * 2022-03-31 2024-05-07 东莞新能安科技有限公司 电化学装置与电子装置
CN114649559A (zh) * 2022-03-31 2022-06-21 东莞新能安科技有限公司 电化学装置与电子装置

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CN102437378A (zh) * 2011-12-29 2012-05-02 广东国光电子有限公司 一种锂离子电池卷绕成型方法
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CN204204984U (zh) * 2014-10-09 2015-03-11 深圳市比克电池有限公司 圆柱动力锂离子电池中间极耳卷芯结构及卷芯制作方法
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CN205828573U (zh) * 2016-06-24 2016-12-21 宁德新能源科技有限公司 卷绕式电芯

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JP4968182B2 (ja) * 2008-05-29 2012-07-04 ソニー株式会社 巻回電極体及び非水電解質二次電池
KR101009517B1 (ko) * 2008-06-23 2011-01-18 삼성에스디아이 주식회사 전극 조립체와 이를 이용한 리튬 이차 전지
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CN102484240A (zh) * 2009-01-28 2012-05-30 K2能源解决方案公司 电池极耳结构
US20130316207A1 (en) * 2011-02-03 2013-11-28 Sanyo Electric Co., Ltd. Nonaqueous electrolyte secondary battery
CN102437378A (zh) * 2011-12-29 2012-05-02 广东国光电子有限公司 一种锂离子电池卷绕成型方法
CN203119046U (zh) * 2012-12-24 2013-08-07 东莞市安德丰电池有限公司 一种低内阻锂离子电池卷芯
CN203733873U (zh) * 2014-02-13 2014-07-23 东莞市安德丰电池有限公司 一种多极耳电池卷芯及多极耳多卷芯锂离子电池
CN204204984U (zh) * 2014-10-09 2015-03-11 深圳市比克电池有限公司 圆柱动力锂离子电池中间极耳卷芯结构及卷芯制作方法
CN204577504U (zh) * 2015-04-21 2015-08-19 宁德时代新能源科技有限公司 金属锂电池
CN204809314U (zh) * 2015-06-12 2015-11-25 宁德时代新能源科技有限公司 二次电池电芯
CN205828573U (zh) * 2016-06-24 2016-12-21 宁德新能源科技有限公司 卷绕式电芯

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114788085A (zh) * 2021-09-30 2022-07-22 宁德新能源科技有限公司 电芯以及应用所述电芯的用电设备
CN114447443A (zh) * 2022-02-11 2022-05-06 宁德新能源科技有限公司 电化学装置、电化学装置的制造方法及用电设备
CN114430095A (zh) * 2022-04-06 2022-05-03 宁德新能源科技有限公司 电化学装置及电子设备
CN114430095B (zh) * 2022-04-06 2022-07-08 宁德新能源科技有限公司 电化学装置及电子设备
CN116435670A (zh) * 2023-06-12 2023-07-14 宁德新能源科技有限公司 一种电化学装置及用电设备
CN116435670B (zh) * 2023-06-12 2023-09-15 宁德新能源科技有限公司 一种电化学装置及用电设备

Also Published As

Publication number Publication date
US11658344B2 (en) 2023-05-23
CN115020825A (zh) 2022-09-06
WO2017219345A1 (zh) 2017-12-28
US20190089005A1 (en) 2019-03-21

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