CN113348580A - 电芯 - Google Patents

电芯 Download PDF

Info

Publication number
CN113348580A
CN113348580A CN201980039672.4A CN201980039672A CN113348580A CN 113348580 A CN113348580 A CN 113348580A CN 201980039672 A CN201980039672 A CN 201980039672A CN 113348580 A CN113348580 A CN 113348580A
Authority
CN
China
Prior art keywords
electrode assembly
bonding layer
electrode
layer
maximum distance
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
CN201980039672.4A
Other languages
English (en)
Other versions
CN113348580B (zh
Inventor
肖良针
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.)
Ningde Amperex Technology Ltd
Original Assignee
Ningde Amperex Technology 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 Ningde Amperex Technology Ltd filed Critical Ningde Amperex Technology Ltd
Publication of CN113348580A publication Critical patent/CN113348580A/zh
Application granted granted Critical
Publication of CN113348580B publication Critical patent/CN113348580B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M10/058—Construction or manufacture
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H01M50/1243—Primary casings; Jackets or wrappings characterised by the material having a layered structure characterised by the internal coating on the casing
    • 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
    • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like 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
    • H01M10/04—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
    • H01M10/058—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
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/121—Organic material
    • 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
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • 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)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

本申请提供一种电芯，包括电极组件、包装袋、粘结层及电解液，所述电极组件封装在所述包装袋内并通过所述粘结层与所述包装袋相粘接。所述电极组件、所述包装袋和所述电解液的总重量m(g)，所述电极组件的极耳与所述包装袋之间的最小封装强度F(N)，所述粘结层的最大粘结力f(N)，所述粘结层在所述电极组件的宽度方向上的最大距离x(mm)，以及所述粘结层在所述电极组件的长度方向上的最大距离y(mm)满足以下关系：0.098m/a≤f＜F，其中a为x和y中较小的值，其在跌落后，电极组件撕裂或电极组件冲开包装袋的风险较小。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN201980039672.4A 2019-12-16 2019-12-16 电芯 Active CN113348580B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/125628 WO2021119911A1 (zh) 2019-12-16 2019-12-16 电芯

Publications (2)

Publication Number Publication Date
CN113348580A true CN113348580A (zh) 2021-09-03
CN113348580B CN113348580B (zh) 2024-03-12

Family

ID=76476926

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980039672.4A Active CN113348580B (zh) 2019-12-16 2019-12-16 电芯

Country Status (3)

Country Link
EP (1) EP3866248A4 (zh)
CN (1) CN113348580B (zh)
WO (1) WO2021119911A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114335664A (zh) * 2021-12-21 2022-04-12 宁德新能源科技有限公司 电化学装置以及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011249269A (ja) * 2010-05-31 2011-12-08 Panasonic Corp ラミネート電池
CN203690420U (zh) * 2014-01-23 2014-07-02 东莞新能源科技有限公司 锂离子电池
CN104143642A (zh) * 2014-08-06 2014-11-12 武汉美格科技有限公司 一种透明的锂电池及其制造方法
CN105449255A (zh) * 2014-08-05 2016-03-30 东莞新能源科技有限公司 电化学储能装置
CN105742712A (zh) * 2014-12-08 2016-07-06 东莞新能源科技有限公司 电化学储能装置
CN211017287U (zh) * 2019-12-16 2020-07-14 宁德新能源科技有限公司 电芯

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1221054C (zh) * 2003-06-18 2005-09-28 福建南平南孚電池有限公司 袋式锂离子电池的制备方法
CN103887556B (zh) * 2014-03-13 2015-08-19 深圳格林德能源有限公司 一种动力储能聚合物锂离子电池及制备方法
JP2017010809A (ja) * 2015-06-23 2017-01-12 住友電気工業株式会社 レドックスフロー電池、及びレドックスフロー電池用電極
CN206293555U (zh) * 2016-12-06 2017-06-30 齐齐哈尔工程学院 一种软包装石墨烯锂离子电池
CN109449322A (zh) * 2018-12-21 2019-03-08 河南鼎能电子科技有限公司 一种具有超薄金属外壳的新型锂电池
CN110416443A (zh) * 2019-07-31 2019-11-05 安徽相源新能源有限公司 一种不易折损的锂电芯及其生产方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011249269A (ja) * 2010-05-31 2011-12-08 Panasonic Corp ラミネート電池
CN203690420U (zh) * 2014-01-23 2014-07-02 东莞新能源科技有限公司 锂离子电池
CN105449255A (zh) * 2014-08-05 2016-03-30 东莞新能源科技有限公司 电化学储能装置
CN104143642A (zh) * 2014-08-06 2014-11-12 武汉美格科技有限公司 一种透明的锂电池及其制造方法
CN105742712A (zh) * 2014-12-08 2016-07-06 东莞新能源科技有限公司 电化学储能装置
CN211017287U (zh) * 2019-12-16 2020-07-14 宁德新能源科技有限公司 电芯

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114335664A (zh) * 2021-12-21 2022-04-12 宁德新能源科技有限公司 电化学装置以及电子设备

Also Published As

Publication number Publication date
CN113348580B (zh) 2024-03-12
EP3866248A1 (en) 2021-08-18
WO2021119911A1 (zh) 2021-06-24
EP3866248A4 (en) 2021-09-29

Similar Documents

Publication Publication Date Title
CN211017287U (zh) 电芯
US10109826B2 (en) Secondary battery
CN211907597U (zh) 电芯和应用所述电芯的电池
EP3131134B1 (en) Outer casing material for electricity storage devices, electricity storage device and method for producing embossed outer casing material
JP2016091939A (ja) 端子用樹脂フィルム、それを用いたタブ及び蓄電デバイス
CN110190319B (zh) 电极组件和二次电池
WO2021003780A1 (zh) 二次电池
CN112534607B (zh) 电池及电子装置
CN113348580A (zh) 电芯
JP6738171B2 (ja) 蓄電デバイス用外装材及び蓄電デバイス
JP2001176459A (ja) 二次電池用外装材料及びその製造方法
KR20100005810A (ko) 접착력이 향상된 파우치, 이의 제조방법, 및 이를 포함하는이차전지
CN109428108A (zh) 二次电池用电极组件及二次电池用电极组件的制造方法
CN210030536U (zh) 用于电池电芯的胶纸
CN116826258A (zh) 二次电池及包含其的电子装置
CN111837284B (zh) 电极组件、包含其的二次电池、用于制造二次电池的方法及电池组
JP2001229911A (ja) 密閉型電池
KR20150137654A (ko) 이차전지 및 이의 제조방법
WO2018049576A1 (zh) 软包电池壳体
CN113728496B (zh) 电芯及具有该电芯的电池
KR20210081609A (ko) 멀티 탭의 용접 강도 측정방법
CN106356581A (zh) 一种新型能源膜及其制作方法
CN113544900A (zh) 电芯及具有该电芯的电池
WO2024060145A1 (zh) 二次电池及包含其的电子装置
US11749828B2 (en) Wound cell and battery using the same

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