CN112913076A - 智能电池及其锂电芯 - Google Patents

智能电池及其锂电芯 Download PDF

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Publication number
CN112913076A
CN112913076A CN201880099025.8A CN201880099025A CN112913076A CN 112913076 A CN112913076 A CN 112913076A CN 201880099025 A CN201880099025 A CN 201880099025A CN 112913076 A CN112913076 A CN 112913076A
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China
Prior art keywords
tab
lithium battery
battery cell
welding
electrode assembly
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CN201880099025.8A
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English (en)
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时文平
刘东任
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SZ DJI Technology Co Ltd
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SZ DJI Technology Co Ltd
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Publication of CN112913076A publication Critical patent/CN112913076A/zh
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    • 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
    • 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
    • H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

一种锂电芯，所述锂电芯包括：卷绕式电极组件，所述卷绕式电极组件主要由正极片、隔膜和负极片叠合并卷绕而成；所述卷绕式电极组件的第一端设置有至少两个连接极耳，其中一个连接极耳与所述正极片连接，另外一个连接极耳与所述负极片连接；铝塑膜，包覆所述卷绕式电极组件，并且密封所述卷绕式电极组件。在一些示例中，卷绕式电极组件的第二端可以包覆电极保护胶；在另一些示例中，该锂电芯还包括有一端伸入到铝塑膜的容腔内并与连接极耳远离正极片和负极片的焊接段焊接的转接极耳，在转接极耳和连接极耳焊接的焊印的外表面包覆有焊印保护胶。通过设置电极保护胶或者焊印保护胶，可以降低铝塑膜被刺破的风险，提高锂电芯的安全性。本发明还提供一种智能电池。

Description

PCT国内申请，说明书已公开。

Claims (25)

  1. PCT国内申请，权利要求书已公开。
CN201880099025.8A 2018-11-21 2018-11-21 智能电池及其锂电芯 Pending CN112913076A (zh)

Applications Claiming Priority (1)

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PCT/CN2018/116634 WO2020103014A1 (zh) 2018-11-21 2018-11-21 智能电池及其锂电芯

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CN112913076A true CN112913076A (zh) 2021-06-04

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WO (1) WO2020103014A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113437444A (zh) * 2021-06-23 2021-09-24 东莞新能安科技有限公司 电化学装置和电子装置
CN116053714A (zh) * 2022-12-31 2023-05-02 宁德新能源科技有限公司 电极组件、电池和用电设备

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WO2021237711A1 (zh) * 2020-05-29 2021-12-02 宁德新能源科技有限公司 电池和具有所述电池的用电装置
CN111697170B (zh) * 2020-06-23 2023-10-31 欣旺达动力科技股份有限公司 一种双通单体电池及其组装方法、电池包
CN114552136A (zh) * 2020-11-20 2022-05-27 北京小米移动软件有限公司 电源组件及其制作方法
CN112635922B (zh) * 2020-12-16 2022-03-08 宁德新能源科技有限公司 电芯、电池及用电设备
CN114695971A (zh) * 2020-12-31 2022-07-01 华为技术有限公司 一种电池芯、电池和电子设备
CN113966567B (zh) * 2021-03-24 2023-06-20 宁德新能源科技有限公司 电芯与用电装置
CN113097570B (zh) * 2021-03-26 2022-08-30 宁德新能源科技有限公司 卷绕电芯及用于其的极耳错位测量方法
CN115133232A (zh) * 2021-03-26 2022-09-30 宁德新能源科技有限公司 电芯及用电装置
CN113097660A (zh) * 2021-03-30 2021-07-09 东莞新能安科技有限公司 电化学装置及应用其的用电装置
CN113131055A (zh) * 2021-03-30 2021-07-16 宁德新能源科技有限公司 电芯以及用电设备
CN113270671B (zh) * 2021-05-13 2024-04-16 宁德新能源科技有限公司 电芯及用电装置
CN113363642B (zh) * 2021-05-31 2023-12-29 宁德新能源科技有限公司 电芯及用电装置
CN113571845B (zh) * 2021-06-24 2022-11-18 惠州锂威新能源科技有限公司 一种多极耳电芯的折极耳方法
CN113675535B (zh) * 2021-07-14 2024-02-23 宁德新能源科技有限公司 电芯及电子装置
CN114361725B (zh) * 2021-07-15 2023-08-22 北京卫蓝新能源科技有限公司 软包电池组
WO2023004826A1 (zh) * 2021-07-30 2023-02-02 宁德时代新能源科技股份有限公司 电池单体、电池、用电设备及电池单体的制造方法和设备
CN113708021B (zh) * 2021-08-02 2023-06-13 惠州锂威新能源科技有限公司 一种多极耳电池的制造方法及其多极耳电池
CN114628857A (zh) * 2021-08-16 2022-06-14 万向一二三股份公司 用于软包锂电池的负极耳
CN114188677A (zh) * 2021-12-13 2022-03-15 珠海冠宇电池股份有限公司 一种开关元件、电池及制作方法
CN114597601B (zh) * 2022-03-11 2024-03-19 上海兰钧新能源科技有限公司 一种极耳焊接方法及电芯
CN118352745A (zh) * 2022-03-31 2024-07-16 东莞新能安科技有限公司 电化学装置与电子装置
CN116154413A (zh) * 2022-10-26 2023-05-23 厦门海辰储能科技股份有限公司 极耳连接结构与连接方法、电池、电池模组和用电设备
WO2024138323A1 (zh) * 2022-12-26 2024-07-04 东莞新能源科技有限公司 二次电池及电子装置

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CN106450497A (zh) * 2016-12-08 2017-02-22 东莞市迈科新能源有限公司 一种多卷芯双极耳软包电池的制备方法及其电池
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CN207765527U (zh) * 2018-01-29 2018-08-24 宁德新能源科技有限公司 极耳组件、电极组件及电池

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KR100891078B1 (ko) * 2006-04-03 2009-03-30 주식회사 엘지화학 안전성과 용량이 증가된 리튬 이차전지
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* Cited by examiner, † Cited by third party
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CN102064308A (zh) * 2009-11-18 2011-05-18 三星Sdi株式会社 二次电池
WO2011070918A1 (ja) * 2009-12-07 2011-06-16 株式会社 村田製作所 蓄電デバイスとその製造方法
CN205028971U (zh) * 2015-10-15 2016-02-10 青岛领军节能与新材料研究院 一种圆柱型软包装锂离子电池
CN106450497A (zh) * 2016-12-08 2017-02-22 东莞市迈科新能源有限公司 一种多卷芯双极耳软包电池的制备方法及其电池
CN206432322U (zh) * 2017-02-09 2017-08-22 宁德时代新能源科技股份有限公司 电芯极片及卷绕式裸电芯
CN207765527U (zh) * 2018-01-29 2018-08-24 宁德新能源科技有限公司 极耳组件、电极组件及电池

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113437444A (zh) * 2021-06-23 2021-09-24 东莞新能安科技有限公司 电化学装置和电子装置
WO2022267925A1 (zh) * 2021-06-23 2022-12-29 东莞新能安科技有限公司 电化学装置和电子装置
CN113437444B (zh) * 2021-06-23 2023-10-27 东莞新能安科技有限公司 电化学装置和电子装置
CN116053714A (zh) * 2022-12-31 2023-05-02 宁德新能源科技有限公司 电极组件、电池和用电设备

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