CN105428560A - 一种功率型锂电池低电阻盖帽 - Google Patents

一种功率型锂电池低电阻盖帽 Download PDF

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Publication number
CN105428560A
CN105428560A CN201511009380.6A CN201511009380A CN105428560A CN 105428560 A CN105428560 A CN 105428560A CN 201511009380 A CN201511009380 A CN 201511009380A CN 105428560 A CN105428560 A CN 105428560A
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China
Prior art keywords
outer ring
explosion
lithium battery
upper cover
proof diaphragm
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CN201511009380.6A
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English (en)
Inventor
熊超
詹新峰
马海霞
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TAIXING ZHENGXING ELECTRON CO Ltd
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TAIXING ZHENGXING ELECTRON CO Ltd
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Priority to CN201511009380.6A priority Critical patent/CN105428560A/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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • 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
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

本发明涉及一种功率型锂电池低电阻盖帽，其特征在于：包括密封外圈、上盖、防爆膜片和孔板，所述防爆膜片上边四周朝内折弯热熔焊接于上盖四边的环形区域，所述密封外圈上边四周朝内折弯压紧防爆膜片折弯区域。

Description

一种功率型锂电池低电阻盖帽
技术领域
本发明涉及一种盖帽，具体说是一种功率型锂电池低电阻盖帽。
背景技术
锂离子电池盖帽是锂离子电池的关键部件，它直接关系到锂离子电池的可靠性、使用寿命、容量大小、生产者和消费者生产使用安全。现有的锂电池盖帽采用密封外圈包裹上盖、垫片和防爆膜，并在防爆膜下方焊接孔板，对与电阻要求较高的锂电池电阻而言，上盖、垫片和防爆膜间的焊接直接影响到盖帽的电阻，垫片的材质、加工增加了生产成本、生产工序，垫片与上盖和防爆膜的性能差异、安装工艺精度导致盖帽性能参差不齐，影响盖帽质量。
发明内容
针对现有技术的上述不足，本发明提供了一种结构简单、成本低、加工、组装方便，能有效确保盖帽低电阻性能一致性和稳定性的功率型锂电池低电阻盖帽。
本发明的技术方案是：一种功率型锂电池低电阻盖帽，其特征在于：包括密封外圈、上盖、防爆膜片和孔板，所述防爆膜片上边四周朝内折弯热熔焊接于上盖四边的环形区域，所述密封外圈上边四周朝内折弯压紧防爆膜片折弯区域。
进一步地，所述密封外圈下端设有同轴、相连在密封圈上的朝下凸出的内、外环形凸环，内环形凸环凸起高度小于外环形凸环，内、外环形凸环之间的密封外圈上均布开设有多个镂空孔，所述内环形凸环内同轴设有朝向的环形凹台，孔板支撑于环形凹台内且焊接在防爆膜片下底面。
再进一步地，所述防爆膜片下底面设有一圈对应孔板或对应上盖四边环形区域内边的一圈环形泄压刻槽。
本发明采用防爆膜朝上翻转折弯焊接上盖上面，防爆膜与上盖间无需垫片组装、焊接，加以密封外圈朝内折弯压紧防爆膜和上盖，其结构简单、紧凑，生产、组装便捷、成本低，焊接部件间的高精度组装焊接，能有效确保盖帽的低电阻性能一致性和稳定性。
附图说明
图1为本发明结构示意图。
图中：密封外圈1，上盖2，上盖环形区域3，防爆膜片4，防爆膜片环形区域5，环形泄压刻槽6，内环形凸环7，外环形凸环8，镂空孔9，环形凹台10，孔板11。
具体实施方式
以下结合附图和实施例作进一步说明。
图1所示：一种功率型锂电池低电阻盖帽包括密封外圈1、上盖2、防爆膜片4和孔板11，防爆膜片4上边四周的防爆膜片环形区域5朝内折弯热熔焊接于上盖2四边的上盖环形区域3，密封外圈上边四周朝内折弯压紧防爆膜片折弯的防爆膜片环形区域5。密封外圈1下端设有同轴、相连在密封圈上的朝下凸出的内、外环形凸环6、7，内环形凸环凸起高度小于外环形凸环，内、外环形凸环之间的密封外圈上均布开设有多个镂空孔9，内环形凸环内同轴设有朝向的环形凹台10，孔板11支撑于环形凹台内且焊接在防爆膜片下底面。防爆膜片4下底面设有一圈对应孔板或对应上盖四边环形区域内边的一圈环形泄压刻槽6。

Claims (3)

1.一种功率型锂电池低电阻盖帽，其特征在于：包括密封外圈、上盖、防爆膜片和孔板，所述防爆膜片上边四周朝内折弯热熔焊接于上盖四边的环形区域，所述密封外圈上边四周朝内折弯压紧防爆膜片折弯区域。
2.根据权利要求1所述的一种功率型锂电池低电阻盖帽，其特征是：所述密封外圈下端设有同轴、相连在密封圈上的朝下凸出的内、外环形凸环，内环形凸环凸起高度小于外环形凸环，内、外环形凸环之间的密封外圈上均布开设有多个镂空孔，所述内环形凸环内同轴设有朝向的环形凹台，孔板支撑于环形凹台内且焊接在防爆膜片下底面。
3.根据权利要求1所述的一种功率型锂电池低电阻盖帽，其特征是：所述防爆膜片下底面设有一圈对应孔板或对应上盖四边环形区域内边的一圈环形泄压刻槽。
CN201511009380.6A 2015-12-30 2015-12-30 一种功率型锂电池低电阻盖帽 Pending CN105428560A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107785507A (zh) * 2017-10-27 2018-03-09 新乡市旭兴电源科技有限公司 圆柱锂离子电池组合盖帽及其制作工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102005549A (zh) * 2010-10-27 2011-04-06 杨学新 大功率动力电池防爆组合盖帽
CN102142531A (zh) * 2010-01-28 2011-08-03 深圳市比克电池有限公司 一种电池、电池保护装置及其制作方法
CN103236505A (zh) * 2013-04-28 2013-08-07 泰兴市振兴电子有限公司 一种功率型锂离子电池盖帽及其焊接工艺
CN103296227A (zh) * 2013-05-20 2013-09-11 泰兴市振兴电子有限公司 锂离子功率型电池盖帽及其焊接工艺
WO2015068353A1 (ja) * 2013-11-05 2015-05-14 三洋電機株式会社 密閉型電池用封口体及び密閉型電池
CN204464332U (zh) * 2015-04-09 2015-07-08 常州市武进中瑞电子有限公司 便于激光焊接的组合帽

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102142531A (zh) * 2010-01-28 2011-08-03 深圳市比克电池有限公司 一种电池、电池保护装置及其制作方法
CN102005549A (zh) * 2010-10-27 2011-04-06 杨学新 大功率动力电池防爆组合盖帽
CN103236505A (zh) * 2013-04-28 2013-08-07 泰兴市振兴电子有限公司 一种功率型锂离子电池盖帽及其焊接工艺
CN103296227A (zh) * 2013-05-20 2013-09-11 泰兴市振兴电子有限公司 锂离子功率型电池盖帽及其焊接工艺
WO2015068353A1 (ja) * 2013-11-05 2015-05-14 三洋電機株式会社 密閉型電池用封口体及び密閉型電池
CN204464332U (zh) * 2015-04-09 2015-07-08 常州市武进中瑞电子有限公司 便于激光焊接的组合帽

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107785507A (zh) * 2017-10-27 2018-03-09 新乡市旭兴电源科技有限公司 圆柱锂离子电池组合盖帽及其制作工艺

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