CN107394250A - 具有开孔式极片的纽扣锂电池 - Google Patents

具有开孔式极片的纽扣锂电池 Download PDF

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CN107394250A
CN107394250A CN201710663558.1A CN201710663558A CN107394250A CN 107394250 A CN107394250 A CN 107394250A CN 201710663558 A CN201710663558 A CN 201710663558A CN 107394250 A CN107394250 A CN 107394250A
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朱程显
张耀坤
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Dongguan Jinbang Technology Co ltd
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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • H01M10/0427—Button cells
    • 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
    • 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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  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)
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Abstract

本发明公开了一种具有开孔式极片的纽扣锂电池，包括负极盖、正极壳、负极盖外缘与正极壳上收口之间设有绝缘密封环，正极壳内由上至下依次设有锂离子负极片、电池隔膜、正极片，正极片与正极壳之间设有极片钢环，正极壳内填充有电解液，所述正极片开设有至少一个开孔；由于正极片设有开孔，在保证了电池正极片的直径及厚度尺寸的前提下，有效提高了电解液的储存空间，借助增加电解液能提供更佳活性，从而提升了纽扣锂电池的性能及使用寿命。

Description

具有开孔式极片的纽扣锂电池
技术领域
本发明涉及一种纽扣锂电池，特别是一种具有开孔式极片的纽扣锂电池。
背景技术
纽扣锂电池是指外形尺寸象一颗小纽扣的锂离子电池，相对于柱状电池来说纽扣电池直径较大，厚度较薄，如厚度仅为1.6mm、3.2 mm等。纽扣锂电池结构如图1所示，包括负极盖1’、正极壳2’、负极盖外缘与正极壳上收口之间设有绝缘密封环3’，正极壳内由上至下依次设有锂离子负极片4’、电池隔膜5’、正极片6’, 极片钢环9’，正极壳内填充有电解液；现有的纽扣锂电池均采用一块较薄的负极片与一块较厚的碳基正极片的配对结构。对于这类电池来说，理论上电解液越多，其性能及使用寿命越有保障，但由于正极片及其它部件已占用了较大的空间。因此，如何合理改进结构以便于储存更多的电解液成为本发明人重点研究的内容。
发明内容
本发明要解决的技术问题是提供一种可储存更多电解液、空间利用率高，使用寿命长的具有开孔式极片的纽扣锂电池。
为了解决上述技术问题，本发明的具有开孔式极片的纽扣锂电池，包括负极盖、正极壳、负极盖外缘与正极壳上收口之间设有绝缘密封环，正极壳内由上至下依次设有锂离子负极片、电池隔膜、正极片，正极片与正极壳之间设有极片钢环，正极壳内填充有电解液，所述正极片开设有至少一个开孔。
本发明的进一步改进，所述开孔为开设于正极片上的通孔、盲孔或凹位。
本发明的进一步改进，所述通孔开设于正极片中间。
本发明的有益效果是：由于正极片设有开孔，在保证了电池正极片的直径及厚度尺寸的前提下，有效提高了电解液的储存空间，借助增加电解液能提供更佳活性，从而提升了纽扣锂电池的性能及使用寿命。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图1是传统纽扣锂电池的结构示意图。
图2是本发明的结构示意图。
具体实施方式
参照图2所示，具有开孔式极片的纽扣锂电池，包括负极盖1、正极壳2、负极盖1外缘与正极壳2上收口之间设有绝缘密封环3，正极壳2内由上至下依次设有锂离子负极片4、电池隔膜5、正极片，正极片与正极壳2之间设有极片钢环，正极壳2内填充有电解液，正极片开设有至少一个开孔。进一步，开孔为开设于正极片中间或中间周围的上下贯通的通孔、盲孔或凹位。由于正极片设有开孔，在保证了电池正极片的直径及厚度尺寸的前提下，有效提高了电解液的储存空间，从而提升了纽扣锂电池的性能及使用寿命。
以上所述只是本发明优选的实施方式，其并不构成对本发明保护范围的限制，只要是以基本相同的手段实现本发明的目的都应属于本发明的保护范围。

Claims (3)

1.具有开孔式极片的纽扣锂电池，包括负极盖（1）、正极壳（2）、负极盖（1）外缘与正极壳（2）上收口之间设有绝缘密封环（3），正极壳（2）内由上至下依次设有锂离子负极片（4）、电池隔膜（5）、正极片，正极片与正极壳（2）之间设有极片钢环，正极壳（2）内填充有电解液，其特征在于：所述正极片开设有至少一个开孔。
2.根据权利要求1所述的具有开孔式极片的纽扣锂电池，其特征在于：所述开孔为开设于正极片上的通孔、盲孔或凹位。
3.根据权利要求2所述的具有开孔式极片的纽扣锂电池，其特征在于：所述通孔开设于正极片中间。
CN201710663558.1A 2017-08-06 2017-08-06 具有开孔式极片的纽扣锂电池 Withdrawn CN107394250A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109817885A (zh) * 2019-03-15 2019-05-28 湖北锂诺新能源科技有限公司 一种高性能蜂窝状锂离子纽扣电池

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001052683A (ja) * 1999-07-28 2001-02-23 Mitsubishi Chemicals Corp 空隙格子層を有する電極および当該電極を有する電池
CN201112477Y (zh) * 2007-09-19 2008-09-10 艾斯塔有限责任公司 防集流网脱落的扣式电池正极片
JP2010118164A (ja) * 2008-11-11 2010-05-27 Mazda Motor Corp 二次電池の電極
CN201594568U (zh) * 2009-11-06 2010-09-29 王海林 扣式锂锰一次电池正极片结构
CN203312383U (zh) * 2013-03-28 2013-11-27 深圳市力电电池有限公司 具有金属聚能环的纽扣式锂电池
CN106654289A (zh) * 2016-12-29 2017-05-10 深圳先进技术研究院 一种多孔铝箔负极及其制备方法和锂二次电池
CN206992237U (zh) * 2017-08-06 2018-02-09 朱程显 具有开孔式极片的纽扣锂电池

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001052683A (ja) * 1999-07-28 2001-02-23 Mitsubishi Chemicals Corp 空隙格子層を有する電極および当該電極を有する電池
CN201112477Y (zh) * 2007-09-19 2008-09-10 艾斯塔有限责任公司 防集流网脱落的扣式电池正极片
JP2010118164A (ja) * 2008-11-11 2010-05-27 Mazda Motor Corp 二次電池の電極
CN201594568U (zh) * 2009-11-06 2010-09-29 王海林 扣式锂锰一次电池正极片结构
CN203312383U (zh) * 2013-03-28 2013-11-27 深圳市力电电池有限公司 具有金属聚能环的纽扣式锂电池
CN106654289A (zh) * 2016-12-29 2017-05-10 深圳先进技术研究院 一种多孔铝箔负极及其制备方法和锂二次电池
CN206992237U (zh) * 2017-08-06 2018-02-09 朱程显 具有开孔式极片的纽扣锂电池

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109817885A (zh) * 2019-03-15 2019-05-28 湖北锂诺新能源科技有限公司 一种高性能蜂窝状锂离子纽扣电池

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Application publication date: 20171124