CN1412866A - 电池组 - Google Patents

电池组 Download PDF

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Publication number
CN1412866A
CN1412866A CN02147109A CN02147109A CN1412866A CN 1412866 A CN1412866 A CN 1412866A CN 02147109 A CN02147109 A CN 02147109A CN 02147109 A CN02147109 A CN 02147109A CN 1412866 A CN1412866 A CN 1412866A
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battery
battery pack
inside components
resiliency
heat
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CN1184704C (zh
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乡州贵司
藤塚幸一
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Envision Aesc Energy Components Co ltd
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NEC Tokin Tochigi 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

提供一种在利用柔性外包装材料包覆的电池组中，即使受到外部冲击也不会受到损伤的电池组，所述电池组，在用柔性构件将电池包覆的电池组中，在至少包括保护电路基板的电池组内装部件上，配置将压力消除之后将变形复原的缓冲性构件，利用热收缩性管或装于电池密封外壳上的粘接带将缓冲性构件安装到电池表面上。

Description

电池组
技术领域
本发明涉及电池组，特别是涉及利用所谓软包装的柔性合成树脂膜等包覆的电池组。
背景技术
锂离子电池等充放电容量密度大的电池很少单独使用，通常组装成和内装部件一起容纳到合成树脂制造的框体等的内部的电池组，将该电池组安装到使用电池的设备中使用，其中，所述内装部件由当电池的端子短路等原因流过太大的电流时、或在电池温度过高时、以及过放电时等情况下将电流切断、保护电池的充放电保护电路和PTC元件等构成。
作为电池组，通常使用将电池和内装部件一起容纳到框体中、用薄的合成树脂膜等将框体表面设置导电端子的部位、电池及内装部件包覆，并安装有与使用电池的设备连接的导电连接端子的称作软包装的电池组。
在把电池及内装部件容纳在合成树脂等构成的框体中的电池组中，由于利用框体保护电池及内装部件，所以不必设置保护电池及内装部件不受冲击用的保护构件。
但是，在软包装中，有必要对内装部件及电池进行保护，使之不受落下时加在电池组上的冲击等来自外部的冲击的影响。
图3是说明现有技术的电池组的一个例子的图示。
图3(A)是说明电池组的剖面图，电池组1在电池密封外壳2的表面上安装具有电池保护电路等的内装部件3，在安装内装部件3及保护上表面的保护构件4之后，用柔性外包装材料5包覆，设置与外部设备连接用的导电连接端子6。
与使用电池的设备小型化相对应，将电池组薄型化，同时将安装到内装部件上的电子零部件小型化，但用于保护电路等的电子零部件，为了使电池的充放电电流稳定，与信号系统的零部件不同，其尺寸不得不较大。
如图3(B)中电池组的剖面图所示，在对应于设备的小型化将容纳在电池组1内的电池2进行薄型化的情况下，当将其厚度薄型化到与内装部件3的大小相等时，保护构件4超过电池的横向宽度，向两侧突出，事实上不能安装保护构件。
此外，如图3(C)中与电池组的厚度方向垂直的剖面图所示，在把沿电池的长度方向延伸的长度方向的保护构件4A装到安装内装部件3的表面上时，长度方向的保护构件4A弯曲，当把外部冲击加到电池组上时，长度方向的保护构件4A的中央部将以虚线所示的方式弯曲，与内装部件碰撞，有可能将内装部件破坏。
发明内容
在利用柔性构件包覆电池的电池组中，本发明是一种在至少包括保护电路基板的内装部件上配置有压力消除后将变形恢复的缓冲性构件的电池组。
此外，在前述电池组中，缓冲性构件是从发泡合成树脂、发泡橡胶中选择出来的至少一种电绝缘性构件。
在前述电池组中，缓冲性构件利用热收缩性管安装到电池表面上。
在前述电池组中，内装部件利用粘接带安装到电池表面上。
附图的详细说明
图1是说明本发明的电池组的一个实施例的剖面图。
图2是说明本发明的电池组的制造过程的一个实施例的图示。
图3是说明现有技术的电池组的一个例子的图示。
对优选实施例的描述
本发明提供一种电池组，在利用柔性构件包覆的电池组中，通过利用热收缩性管或粘接带安装对含有电池组的保护电路的内装部件等外部冲击进行保护、在消除压力后恢复到原来状态的缓冲性构件，在使用厚度薄的薄型电池的电池组中、缩小外部冲击对内装部件的影响的同时，不会因内装部件的保护构件而导致厚度的增大。
下面参照附图对本发明进行说明。
图1是说明本发明的电池组的一个实施例的剖面图。
本发明的电池组1，在把具有电池保护回路等的内装部件3安装到电池2的表面上之后，在内装部件3上配置因压缩而变形、同时可在将压力解除之后恢复原状的缓冲性构件7，利用热收缩性管8将缓冲性构件7固定到电池2上。同时，它们的外表面用柔性外包装材料5包覆。此外，在电池组上，设置与外部设备连接用的导电连接端子6。
图2是说明本发明的电池组的制造过程的一个例子的图示。
图2(A)是说明容纳到本发明的电池组内的电池2的图示。如图2(B)所示，在将具有电池保护电池等的内装部件3与电池2的电极端子导电连接，将导电连接端子6连线之后，如图2(C)所示，将缓冲性构件7载置于内装部件3上，利用缓冲性构件7覆盖内装部件3。
作为缓冲性构件7，可以列举出发泡聚氨酯树脂、发泡聚苯乙烯树脂等电绝缘性发泡合成树脂、橡胶等。
通过使缓冲性构件为3至4mm厚，使得在从1.5m左右的高度落到水泥地面上时，也可以保护内装部件不受损坏。
然后，如图2(D)所示，在用热收缩性管8包覆之后，利用热风使热收缩性管收缩，将缓冲性构件7安装到电池2上。
对于热收缩性管，优选地采用聚丙烯，聚乙烯，聚氯乙烯等在较低的温度通过短时间的加热产生大的收缩的合成树脂膜。作为热收缩性管，采用厚度为0.05mm至1mm的制品。借此，利用热收缩性管，不会增大电池组的厚度，能够可靠地安装缓冲性构件。
此外，缓冲性构件的安装，也可以使用粘接带。作为粘接带，可以采用和热收缩性管相同的厚度。
其次，如图2(E)所示，将它们全部用外包装材料5包覆完成电池组的制造。
由于本发明的电池组利用薄的热收缩性管等将配置到保护电路基板等内装部件上的缓冲性构件固定，所以可以提供对落下等外部冲击的强度很高的薄型电池组。
如上所述，由于本发明的电池组在安装于电池表面上的包括电池保护电路在内的内装部件上配置由于推压引起可复原的变形的缓冲性构件，并且将缓冲性构件利用热收缩性管或装于电池密封外壳上的粘接带安装到电池表面上，从而可以提供一种因安装缓冲性保护构件使外形尺寸的增加量不大的电池组。

Claims (6)

1、一种电池组，是利用柔性构件包覆电池的电池组，其特征为，在至少包括保护电路基板的内装部件上配置在消除压力后将变形复原的缓冲性构件。
2、如权利要求1所述的电池组，其特征为，缓冲性构件为从发泡合成树脂、发泡橡胶中选择出来的至少一种电绝缘构件。
3、如权利要求1所述的电池组，其特征为，缓冲性构件利用热收缩性管安装到电池表面上。
4、如权利要求2所述的电池组，其特征为，缓冲性构件利用热收缩性管安装到电池表面上。
5、如权利要求1所述的电池组，其特征为，内装部件用粘接带安装到电池表面上。
6、如权利要求2所述的电池组，其特征为，内装部件用粘接带安装到电池表面上。
CNB021471096A 2001-10-16 2002-10-16 电池组 Expired - Lifetime CN1184704C (zh)

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JP318137/2001 2001-10-16
JP2001318137A JP2003123714A (ja) 2001-10-16 2001-10-16 電池パック

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CN1184704C CN1184704C (zh) 2005-01-12

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US (1) US20030072994A1 (zh)
JP (1) JP2003123714A (zh)
KR (1) KR100458438B1 (zh)
CN (1) CN1184704C (zh)
TW (1) TW571454B (zh)

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CN101401229B (zh) * 2006-03-13 2012-06-13 株式会社Lg化学 采用冲击吸收构件的中型或大型蓄电池模块
CN103138015A (zh) * 2011-11-30 2013-06-05 天津三星电子有限公司 一种锂电池、电池仓及电源装置
CN107160744A (zh) * 2016-03-07 2017-09-15 辉能科技股份有限公司 柔性外包装
CN109075280A (zh) * 2016-04-13 2018-12-21 株式会社半导体能源研究所 电池模块、电池模块的制造方法以及电子设备
CN111052438A (zh) * 2017-10-12 2020-04-21 麦克赛尔控股株式会社 层叠型电池

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Publication number Priority date Publication date Assignee Title
CN101401229B (zh) * 2006-03-13 2012-06-13 株式会社Lg化学 采用冲击吸收构件的中型或大型蓄电池模块
CN103138015A (zh) * 2011-11-30 2013-06-05 天津三星电子有限公司 一种锂电池、电池仓及电源装置
CN103138015B (zh) * 2011-11-30 2016-08-31 天津三星电子有限公司 一种锂电池、电池仓及电源装置
CN107160744A (zh) * 2016-03-07 2017-09-15 辉能科技股份有限公司 柔性外包装
CN109075280A (zh) * 2016-04-13 2018-12-21 株式会社半导体能源研究所 电池模块、电池模块的制造方法以及电子设备
CN109075280B (zh) * 2016-04-13 2022-12-13 株式会社半导体能源研究所 电池模块、电池模块的制造方法以及电子设备
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CN111052438A (zh) * 2017-10-12 2020-04-21 麦克赛尔控股株式会社 层叠型电池
CN111052438B (zh) * 2017-10-12 2022-08-09 麦克赛尔株式会社 层叠型电池

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KR20030031872A (ko) 2003-04-23
JP2003123714A (ja) 2003-04-25
CN1184704C (zh) 2005-01-12
KR100458438B1 (ko) 2004-11-26
TW571454B (en) 2004-01-11
US20030072994A1 (en) 2003-04-17

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