CN106784424A - 一种锂离子电池用的紧配合铝壳与盖板 - Google Patents

一种锂离子电池用的紧配合铝壳与盖板 Download PDF

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Publication number
CN106784424A
CN106784424A CN201710013196.1A CN201710013196A CN106784424A CN 106784424 A CN106784424 A CN 106784424A CN 201710013196 A CN201710013196 A CN 201710013196A CN 106784424 A CN106784424 A CN 106784424A
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cover plate
aluminum hull
lithium ion
ion battery
tight fit
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王宾
薛驰
缪永华
赵映军
徐洲
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Zhongtian Energy Storage Technology Co Ltd
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Zhongtian Energy Storage 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • 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
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • 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
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

本发明公开了一种锂离子电池用的紧配合铝壳与盖板，包括铝壳和盖板，所述铝壳内侧四个棱角处都开设有凹槽，所述盖板的四个倒角处都设有凸起，所述凸起和凹槽都为等边梯形直四棱体结构，所述凸起和凹槽相配合。其优点在于：本发明成本较低、结构简单，铝壳内侧棱角处的凹槽与盖板倒角棱角处的凸起互相配合，增加了铝壳与盖板的接触面积和受力方向，提高了铝壳与盖板的配合度，增加了铝壳与盖板的焊接良品率，降低材料成本，提高生产效益。

Description

一种锂离子电池用的紧配合铝壳与盖板
技术领域
本发明涉及锂离子电池用铝壳技术领域，特别是一种锂离子电池用的紧配合铝壳与盖板。
背景技术
随着人们对新能源领域的不断追求，锂离子电池得到了快速的发展。现如今市场上出现的锂离子电池根据其外包装可分为圆形锂离子电池、方形锂离子电池和软包锂离子电池。而方形锂离子电池由于电池结构为方形，故其铝壳与盖板的接触面为方形。
方形就意味着铝壳与盖板的接触点必定是有棱有角的，棱角的存在在一定程度上影响了铝壳与盖板的配合度。而圆形电池，因为铝壳与盖板的接触面为圆形，只要在盖板上设定好一定的倒角，通过加压盖板即可与铝壳紧配合。而方形电池因为棱角的存在，一旦盖板与铝壳有一定的位置偏差，即使压力再大，盖板也不可能铝壳紧配合好。而一旦盖板与铝壳的配合不好，那么在将盖板与铝壳激光焊一起时，就会出现焊缝、焊偏等焊接不良的情况。这不但造成了原材料的浪费，也影响了生产线的正常流转，造成不可估量的损失。
而目前常见的盖板与铝壳的紧配合方式为盖板的倒角与铝壳的配合，这虽然可以通过减少公差来提高盖板与铝壳的配合度，但直线配合还是存在一定缺陷，要么是配合度不够，盖板易掉落，要么就是配合过紧，盖板盖不上。
发明内容
本发明的目的是提供一种能够能增加盖板与铝壳的配合度，提高生产效率，增加产业的经济效益的锂离子电池用的紧配合铝壳与盖板。
本发明解决其技术问题所采取的技术方案是：
一种锂离子电池用的紧配合铝壳与盖板，包括铝壳和盖板，其创新点在于：所述铝壳内侧四个棱角处都开设有凹槽，所述盖板的四个倒角处都设有凸起，所述凸起和凹槽都为等边梯形直四棱体结构，所述凸起和凹槽相配合。
进一步的，所述盖板与凸起一体成型。
本发明的有益效果如下：
本发明成本较低、结构简单，铝壳内侧棱角处的凹槽与盖板倒角棱角处的凸起互相配合，增加了铝壳与盖板的接触面积和受力方向，提高了铝壳与盖板的配合度，增加了铝壳与盖板的焊接良品率，降低材料成本，提高生产效益。
附图说明
下面结合附图和具体实施方式对本发明做进一步详细说明。
图1为本发明的结构示意图。
图中：1铝壳、2盖板、3凹槽、4凸起。
具体实施方式
一种锂离子电池用的紧配合铝壳与盖板，包括铝壳1和盖板2，铝壳1内侧四个棱角处都开设有凹槽3，盖板2的四个倒角处都设有凸起4，凸起4和凹槽3都为等边梯形直四棱体结构，凸起4和凹槽3相配合；盖板2和凸起4是通过注塑一体成型结构。这样当盖板2与铝壳1配合在一起时，除了常见的倒角配合外，增加了一个凹凸结构，提高了盖板2与铝壳1的配合度，增加了铝壳1与盖板2的焊接良品率，提高了生产效率。凸起2为定位销，凹槽3为销孔，以加工件公差等级IT6为基准，实现过盈配合，入壳使用时定位销进行凹槽从而形成倒勾，使定位销固定，确保产品在运输过程中，盖板与壳体不易分离，杜绝因铝壳与盖板分离造成的产品报废。
以上所述是本发明的优选实施方式，不能以此来限定本发明之权利范围。应当指出，对于本技术领域的普通技术人员来说，对本发明的技术方案进行修改或者等同替换，都不脱离本发明的保护范围。

Claims (2)

1.一种锂离子电池用的紧配合铝壳与盖板，包括铝壳和盖板，其特征在于：所述铝壳内侧四个棱角处都开设有凹槽，所述盖板的四个倒角处都设有凸起，所述凸起和凹槽都为等边梯形直四棱体结构，所述凸起和凹槽相配合。
2.根据权利要求1所述的一种锂离子电池用的紧配合铝壳与盖板，其特征在于：所述盖板与凸起一体成型,壳体与凹槽一体成型。
CN201710013196.1A 2017-01-09 2017-01-09 一种锂离子电池用的紧配合铝壳与盖板 Pending CN106784424A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107611471A (zh) * 2017-10-17 2018-01-19 广东正业科技股份有限公司 一种电池及其制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202150498U (zh) * 2011-07-27 2012-02-22 圣豹电源有限公司 蓄电池外壳定位结构
CN202474114U (zh) * 2012-03-22 2012-10-03 广东猛狮电源科技股份有限公司 一种摩托车起动用锂离子蓄电池
CN206312950U (zh) * 2017-01-09 2017-07-07 中天储能科技有限公司 一种锂离子电池用的紧配合铝壳与盖板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202150498U (zh) * 2011-07-27 2012-02-22 圣豹电源有限公司 蓄电池外壳定位结构
CN202474114U (zh) * 2012-03-22 2012-10-03 广东猛狮电源科技股份有限公司 一种摩托车起动用锂离子蓄电池
CN206312950U (zh) * 2017-01-09 2017-07-07 中天储能科技有限公司 一种锂离子电池用的紧配合铝壳与盖板

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107611471A (zh) * 2017-10-17 2018-01-19 广东正业科技股份有限公司 一种电池及其制造方法

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