CN201490257U - 一种电池的防爆结构 - Google Patents

一种电池的防爆结构 Download PDF

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CN201490257U
CN201490257U CN2009201667252U CN200920166725U CN201490257U CN 201490257 U CN201490257 U CN 201490257U CN 2009201667252 U CN2009201667252 U CN 2009201667252U CN 200920166725 U CN200920166725 U CN 200920166725U CN 201490257 U CN201490257 U CN 201490257U
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battery
metal shell
utility
indentation
model
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薛华
李俊
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HEDY Industy Automation Control Co., Ltd.
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薛华
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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

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Abstract

本实用新型公开了一种电池的防爆结构，包括电池的金属壳体(1)，该金属壳体(1)上设有刻痕(2)，该刻痕处的壁体厚度比其他部位的壁体厚度小。本实用新型在锂电池壳体的端部和/或圆周面的壁体上设计出薄弱环节，当电池内部的压力升高到一定值时，电池壁体上的这些薄弱环节首先裂开，用以释放内部压力，从而防止电池爆炸而产生危害。本实用新型结构简单，便于生产及其控制。

Description

一种电池的防爆结构
技术领域
本实用新型涉及锂电池领域，具体涉及一种电池的防爆结构。
背景技术
当前锂电池作为高能电源，得到了越来越多的应用。但是，锂电池内部的热量，容易造成安全隐患，特别是大电流充放电时，极易导致电池爆炸，而产生危害。市场销售的锂电池没有设计防爆结构，安全隐患不能减小消除；或者防爆结构较为复杂，不便于生产，且工艺控制要求高而复杂，容易造成误动作。
发明内容
本实用新型为了解决现有锂电池防爆性能较差的技术问题，提供一种具有较好防爆性能的锂电池防爆结构。
为了解决上述技术问题，本实用新型提出的技术方案是构造一种电池的防爆结构，其包括电池的金属壳体。该金属壳体上设有刻痕，该刻痕处的壁体厚度比其他部位的壁体厚度小。
其中，所述的刻痕可以设于金属壳体的端面或圆周面上；也可以同时设于金属壳体的端面和圆周面上。
所述的刻痕可以是由金属壳体外表面向内形成的凹槽；刻痕也可以是由金属壳体内表面向外形成的凸棱。
所述的刻痕可以为环形或十字形，该刻痕页可以为环形和十字形的组合。所述的刻痕还可以是其他图形或多种图形的组合。
本实用新型通过利用锂电池壳体端部或圆周面的部件较少、结构相对简单的特点，在其端部或圆周面的壁体上设计出薄弱环节，当电池内部的压力升高到一定值时，电池壁体上的这些薄弱环节首先裂开，用以释放内部压力，从而防止电池爆炸，产生危害。本实用新型结构简单，便于生产及其控制。
附图说明
下面结合附图和实施例对本实用新型做进一步的说明：
图1为本实用新型第一实施例的主视图；
图2为图1的剖视图；
图3为图1中A处的放大图；
图4为图2中B处的放大图；
图5为本实用新型第二实施例的立体示意图；
图6为本实用新型第二实施例的剖视图；
图7为图6中C处的放大图。
具体实施方式
图1和图2示出了本实用新型第一实施例的基本结构，所述的电池的防爆结构，其包括电池的金属壳体1，该金属壳体1上设有刻痕2，该刻痕处的壁体厚度比其他部位的壁体厚度小。参阅图3和图4，本实施例中，所述的刻痕形成于金属壳体1下部的圆周面上，由金属壳体外表面向内形成环形凹槽2。根据需要，刻痕2也可以由金属壳体1内表面向外形成凸棱。刻痕还可以是其他图形，如十字形，或为多种图形的组合。
如图5、图6和图7所示，本实用新型第二实施例的基本结构，该实施例的基本结构与第一实施例大致相同，所不同的是：刻痕形成于金属壳体1的端面上，由金属壳体外表面向内形成环形凹槽2。根据需要，刻痕也可以同时形成于金属壳体的端面和圆周面上，刻痕的形状和数量可以根据需要选取。
本实用新型在锂电池壳体的端部和/或圆周面的壁体上设计出薄弱环节，当电池内部的压力升高到一定值时，电池壁体上的这些薄弱环节首先裂开，用以释放内部压力，从而防止电池爆炸而产生危害。本实用新型结构简单，便于生产及其控制。

Claims (4)

1.一种电池的防爆结构，包括电池的金属壳体(1)，其特征在于：所述金属壳体(1)上设有刻痕(2)，该刻痕处的壁体厚度比其他部位的壁体厚度小。
2.根据权利要求1所述的电池的防爆结构，其特征在于：所述的刻痕(2)设于金属壳体(1)的端面和/或圆周面上。
3.根据权利要求2所述的电池的防爆结构，其特征在于：所述的刻痕(2)是由金属壳体(1)外表面向内形成的凹槽或是由金属壳体(1)内表面向外形成的凸棱。
4.根据权利要求3所述的电池的防爆结构，其特征在于：所述的刻痕(2)为环形和/或十字形。
CN2009201667252U 2009-07-31 2009-07-31 一种电池的防爆结构 Expired - Fee Related CN201490257U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102290539A (zh) * 2011-08-02 2011-12-21 深圳市豪鹏科技有限公司 电池壳生产工艺及电池壳
US9391311B2 (en) 2011-08-24 2016-07-12 Huawei Device Co., Ltd. Battery and mobile terminal for detecting battery cell deformation
WO2024040534A1 (zh) * 2022-08-25 2024-02-29 宁德时代新能源科技股份有限公司 电池单体的壳体、电池单体、电池和用电设备

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102290539A (zh) * 2011-08-02 2011-12-21 深圳市豪鹏科技有限公司 电池壳生产工艺及电池壳
US9391311B2 (en) 2011-08-24 2016-07-12 Huawei Device Co., Ltd. Battery and mobile terminal for detecting battery cell deformation
WO2024040534A1 (zh) * 2022-08-25 2024-02-29 宁德时代新能源科技股份有限公司 电池单体的壳体、电池单体、电池和用电设备

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