CN101202330B - 圆柱形锂电池 - Google Patents

圆柱形锂电池 Download PDF

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CN101202330B
CN101202330B CN2006101574456A CN200610157445A CN101202330B CN 101202330 B CN101202330 B CN 101202330B CN 2006101574456 A CN2006101574456 A CN 2006101574456A CN 200610157445 A CN200610157445 A CN 200610157445A CN 101202330 B CN101202330 B CN 101202330B
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cylinder
battery
lithium battery
type lithium
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CN101202330A (zh
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王春光
任灿
卫志远
陈保同
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Shenzhen Bak Power Battery Co Ltd
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    • 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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Abstract

本发明涉及一种圆柱形锂电池，其包括筒体、容纳于筒体内部的电池单元、用于密封筒体的上盖板、下盖板，电池单元轴心设置有支撑物，该支撑物为中空的金属筒，金属筒具有轴向开口，筒壁上设置有多个小孔，并且支撑物上端呈收拢状，支撑物的下端与下盖板连接为一体，支撑物的下端可通过焊接的方式与下盖板连接为一体；为进一步将电池单元固定于筒体内，电池单元的两端还设置有绝缘垫片。这种结构的电池，其中心富集的热量能及时传递至下盖板，从而具有良好的散热性能，故电池的安全性高，不易爆炸。

Description

圆柱形锂电池
【技术领域】
本发明涉锂电池领域，具体涉及圆柱形锂电池。
【背景技术】
随着电子工业、信息产业的迅速发展，人们对各类电器电源的要求越来越高。圆柱形锂离子电池作为高能电源被应用多种移动设备，如移动电话、数码相机、笔记本电脑、便携式电动工具。
通常锂电池就其外形可主要分为方形锂电池、圆柱形锂电池，圆柱形锂电池较方形锂电池具有较小的表面积与容量比，因此散热效果较较方形电池差很多。所以圆柱形锂电池内部的热量更容易产生安全隐患，特别是当大电流放电时极易导致电池爆炸。
【发明内容】
本发明的目的是提供一种易于散热、安全性能好的圆柱形锂电池。
本发明采用如下技术方案：一种圆柱形锂电池，包括筒体、容纳于筒体内部的电池单元、用于密封筒体的上盖板、下盖板，电池单元轴心设置有支撑物，该支撑物与下盖板连接为一体。
进一步地，所述支撑物为中空的金属筒；更进一步地，所述支撑物的侧壁上设置有多个小孔。
进一步地，所述支撑物具有轴向开口。
进一步地，所述支撑物的上端呈收拢状。
根据实施例，阐述本发明的有益效果：1)由于支撑物与下盖板连接为一体，所以电池中心富集的热量能及时传递至下盖板，因此能使电池及时散热，提高电池的安全性；2)支撑物为中空的金属筒，其具有质量轻的有点；3)支撑物地侧壁上设置地多个小孔易于电池内部点解液的渗透；4)支撑物设置有轴向开口，方便在电池装配；5)支撑物地上端呈收拢状，方便制造过程中的电池装配。
【附图说明】
图1是实施例1中圆柱形锂电池的剖面图；
图2是实施例2中圆柱形锂电池的剖面图；
图3是实施例1、2中支撑物的结构图；
图4是图3的A-A剖视图。
【具体实施方式】
实施例1，参阅图1、图3、图4，一种圆柱形锂电池，包括筒体1、容纳于筒体1内部的电池单元2、用于密封筒体1的上盖板3、下盖板4，电池单元2轴心设置有支撑物5，该支撑物5为中空的金属筒，金属筒具有轴向开口8，筒壁上设置有多个小孔6，并且支撑物5上端7呈收拢状，支撑物5的下端与下盖板4连接为一体，支撑物5的下端可通过焊接的方式与下盖板4连接为一体；为进一步将电池单元2固定于筒体1内，电池单元2的两端还设置有绝缘垫片9。
实施例2，参阅图2、图3、图4，一种圆柱形锂电池，包括筒体1、容纳于筒体1内部的电池单元2、用于密封筒体1的上盖板3、下盖板4，电池单元2轴心设置有支撑物5，该支撑物5为中空的金属筒，金属筒具有轴向开口8，筒壁上设置有多个小孔6，并且支撑物5上端7呈收拢状，其支撑物5的下端与下盖板4连接为一体，支撑物5的下端可通过焊接的方式与下盖板4连接为一体；为进一步将电池单元2固定于筒体1内，电池单元2的两端还设置有绝缘垫片9。

Claims (4)

1.一种圆柱形锂电池，包括筒体、容纳于筒体内部的电池单元、用于密封筒体的上盖板、下盖板，电池单元轴心设置有支撑物，其特征是，支撑物为中空的金属筒，支撑物与下盖板焊接为一体。
2.根据权利要求1所述的圆柱形锂电池，其特征是，支撑物的上端呈收拢状。
3.根据权利要求1所述的圆柱形锂电池，其特征是，所述支撑物的侧壁上设置有多个小孔。
4.根据权利要求1所述的圆柱形锂电池，其特征是，所述支撑物具有轴向开口。
CN2006101574456A 2006-12-11 2006-12-11 圆柱形锂电池 Active CN101202330B (zh)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5147882B2 (ja) * 2010-03-18 2013-02-20 日立ビークルエナジー株式会社 二次電池
CN101969135A (zh) * 2010-06-18 2011-02-09 艾诺技术有限公司 一种内设金属导管的锂电池
EP2659540B1 (en) 2010-12-31 2018-03-07 Shenzhen BYD Auto R&D Company Limited Battery
JP5656654B2 (ja) * 2011-01-11 2015-01-21 古河電池株式会社 ベント形蓄電池
WO2018161348A1 (zh) * 2017-03-10 2018-09-13 深圳普益电池科技有限公司 一种具有中空极柱的圆柱锂离子电池
CN108832232A (zh) * 2018-08-24 2018-11-16 德朗能（张家港）动力电池有限公司 便于散热的圆柱形锂电池

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1423361A (zh) * 2001-11-28 2003-06-11 三洋电机株式会社 密闭电池
CN1473368A (zh) * 2001-08-20 2004-02-04 ���ṫ˾ 电池

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1473368A (zh) * 2001-08-20 2004-02-04 ���ṫ˾ 电池
CN1423361A (zh) * 2001-11-28 2003-06-11 三洋电机株式会社 密闭电池

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JP特开2003-22791A 2003.01.24
JP特开2006-324245A 2006.11.30

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