CN202585658U - 锂离子电池卷芯电解液透过性胶纸 - Google Patents

锂离子电池卷芯电解液透过性胶纸 Download PDF

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CN202585658U
CN202585658U CN2012202335913U CN201220233591U CN202585658U CN 202585658 U CN202585658 U CN 202585658U CN 2012202335913 U CN2012202335913 U CN 2012202335913U CN 201220233591 U CN201220233591 U CN 201220233591U CN 202585658 U CN202585658 U CN 202585658U
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electrolyte
battery
winding core
lithium ion
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秦莲芝
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SHENZHEN DIKTE BATTERY SCIENCE AND TECHNOLOGY Co Ltd
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    • YGENERAL 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
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Abstract

本实用新型揭露了一种锂离子电池卷芯电解液透过性胶纸,所述锂离子电池包括一铝壳、设置于铝壳内的卷芯,所述电解液透过性胶纸设置于卷芯底部,包括一电池原料隔膜纸以及涂在电池原料隔膜纸边缘上的粘性胶,通过粘性胶将电池原料隔膜纸固定在卷芯底部,因为电解液能自由穿过电池原料隔膜纸,铝壳底部的电解液很容易就能渗透到卷芯内部,从而大大提高了电解液的利用率,使电解液更好的参与正、负极片反应,提高电池的循环使用寿命。

Description

锂离子电池卷芯电解液透过性胶纸
技术领域
本实用新型涉及锂离子电池,特别是涉及锂离子电池卷芯底部贴胶。
背景技术
随着锂离子电池技术的发展,消费者对电池循环要求也不断提高,而电池的循环又对卷芯电解液量提出了更高的要求。公知技术中,锂离子电池卷芯底部贴胶为透明胶,但是电解液对胶明胶无透过性,从而电解液只能由卷芯上部进入,而电解液被注入铝壳后很多都聚集在铝壳底部,因透明胶的存在,铝壳底部的电解液很难渗透入卷芯内部,也就是说电解液没有得到充分的利用,因而卷芯内电解液不足,从而导致电池循环使用寿命就较短。
实用新型内容  
 本实用新型的目的在于克服目前技术的不足,提供一种锂离子电池卷芯电解液透过性胶纸,采用此种胶纸后,能提高电解液的利用率,从而提高电池的循环使用寿命。
为实现上述目的,本实用新型所采用的技术方案是:
一种锂离子电池卷芯电解液透过性胶纸,所述锂离子电池包括一铝壳、设置于铝壳内的卷芯,所述电解液透过性胶纸设置于卷芯底部,包括一电池原料隔膜纸以及涂在电池原料隔膜纸边缘上的粘性胶,通过粘性胶将电池原料隔膜纸固定在卷芯底部。
本实用新型的有益效果为:因为电解液能自由穿过电池原料隔膜纸,铝壳底部的电解液很容易就能渗透到卷芯内部,从而卷芯内的电解液量增加,即大大提高了电解液的利用率,使电解液更好的参与正、负极片反应,提高电池的循环使用寿命。
附图说明
图1为本实用新型锂离子电池示意图;
图2为本实用新型锂离子电池卷芯电解液透过性胶纸放大示意图。
具体实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本实用新型进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本实用新型,并不用于限定本实用新型。
如图1所示,本实用新型锂离子电池包括一铝壳1、设置于铝壳1内的卷芯2、设置于卷芯2底部的电解液透过性胶纸3。
如图2所示,所述电解液透过性胶纸3包括一电池原料隔膜纸31以及涂在电池原料隔膜纸31边缘上的粘性胶32,通过粘性胶32将电池原料隔膜纸31固定在卷芯2底部。因为电解液4(如图1所示)能自由穿过电池原料隔膜纸31,铝壳1底部的电解液4很容易就能渗透到卷芯2内部,从而卷芯2内的电解液量增加,即大大提高了电解液4的利用率,使电解液4更好的参与正、负极片(图未示)反应,提高电池的循环使用寿命。
所述电解液透过性胶纸3同样可以用于电池的隔圈胶(图未示)上。

Claims (1)

1.一种锂离子电池卷芯电解液透过性胶纸,所述锂离子电池包括一铝壳、设置于铝壳内的卷芯,其特征在于:所述电解液透过性胶纸设置于卷芯底部,包括一电池原料隔膜纸以及涂在电池原料隔膜纸边缘上的粘性胶,通过粘性胶将电池原料隔膜纸固定在卷芯底部。
CN2012202335913U 2012-05-23 2012-05-23 锂离子电池卷芯电解液透过性胶纸 Expired - Fee Related CN202585658U (zh)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105742712A (zh) * 2014-12-08 2016-07-06 东莞新能源科技有限公司 电化学储能装置
WO2016192051A1 (zh) * 2015-06-03 2016-12-08 宁德新能源科技有限公司 电化学储能装置
CN106410108A (zh) * 2016-11-10 2017-02-15 东莞市振华新能源科技有限公司 一种锂离子电池用的多孔高温绝缘胶纸
CN113540706A (zh) * 2021-07-12 2021-10-22 欣旺达电动汽车电池有限公司 电芯以及电池

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105742712A (zh) * 2014-12-08 2016-07-06 东莞新能源科技有限公司 电化学储能装置
WO2016192051A1 (zh) * 2015-06-03 2016-12-08 宁德新能源科技有限公司 电化学储能装置
US10326170B2 (en) 2015-06-03 2019-06-18 Ningde Amperex Technology Limited Electrochemical energy storage device
CN106410108A (zh) * 2016-11-10 2017-02-15 东莞市振华新能源科技有限公司 一种锂离子电池用的多孔高温绝缘胶纸
CN113540706A (zh) * 2021-07-12 2021-10-22 欣旺达电动汽车电池有限公司 电芯以及电池

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