CN108091934A - 利用互联网监测的新能源锂离子电池组中使用的电解液 - Google Patents

利用互联网监测的新能源锂离子电池组中使用的电解液 Download PDF

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CN108091934A
CN108091934A CN201711338245.5A CN201711338245A CN108091934A CN 108091934 A CN108091934 A CN 108091934A CN 201711338245 A CN201711338245 A CN 201711338245A CN 108091934 A CN108091934 A CN 108091934A
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张成如
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Shandong Xinghuo Science Technology Institute
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Abstract

本发明涉及利用互联网监测的新能源锂离子电池组中使用的电解液,使用的电解液包括溶质四氟硼酸锂和双氟磺酰亚胺锂,溶剂碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯,阻燃添加剂三氟代甲基碳酸乙烯酸和三氟均三嗪,负极成膜添加剂马来酸酐;新能源锂离子电池组的上固定板上设有通孔A,下固定板上设有通孔B,通孔A和通孔B的内壁上均设有橡胶垫,通孔A和通孔B将多个锂离子电池固定,将多个锂离子电池并联后封装,置于壳体内,铝塑包装膜的外表面设有温度检测装置,温度检测装置与温度显示器连接。本发明避免了电池组颠簸过程中锂离子电池收到的损伤,有较强的耐燃能力,提高的锂离子电池的使用寿命。

Description

利用互联网监测的新能源锂离子电池组中使用的电解液
技术领域
本发明涉及利用互联网监测的新能源锂离子电池组中使用的电解液,属于新能源技术领域。
背景技术
新能源指在新技术基础上加以开发利用的可再生能源,包括太阳能、生物质能、水能、风能、地热能、波浪能、洋流能和潮汐能,以及海洋表面与深层之间的热循环等;此外,还有氢能、沼气、酒精、甲醇等,而已经广泛利用的煤炭、石油、天然气、水能、等能源,称为常规能源。随着常规能源的有限性以及环境问题的日益突出,以环保和可再生为特质的新能源越来越得到各国的重视。随着新能源的发展,新能源锂离子电池越来越多的应用于电动汽车中。然而,锂离子电池在使用过程中容易产生热量,当电池过热时,不仅降低锂离子电池的使用寿命,且易造成安全隐患。
电解液对于锂离子电池的使用寿命具有决定性的作用,尤其是锂离子电池在使用过程中,由于碰撞或者挤压,易将电解液泄露,进一步引起燃烧甚至爆炸。
发明内容
本发明旨在解决上述问题,提供了利用互联网监测的新能源锂离子电池组中使用的电解液,本发明可以实时的对新能源锂电池进行检测,尤其是充放电过程中锂离子电池的温度检测,本发明中的电解液不仅具有抗燃能力,且提高了导电性,可以快速充电,同时,本发明提高锂离子电池的使用寿命,避免隐患的发生。本发明的技术方案如下:
利用互联网监测的新能源锂离子电池组中使用的电解液,使用的电解液包括溶质四氟硼酸锂和双氟磺酰亚胺锂,溶剂碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯,阻燃添加剂三氟代甲基碳酸乙烯酸和三氟均三嗪,负极成膜添加剂马来酸酐;其中,在电解液中,溶质占的量为1.5-2mol/L,阻燃添加剂占的质量分数为4.5-6%,负极成膜添加剂占的质量分数为5.5-6.5%,其余为溶剂;
新能源锂离子电池组包括多个锂离子电池、上固定板、下固定板、铝塑包装膜和壳体,上固定板上设有与锂离子电池数量相同的通孔A,下固定板上设有与通孔A相对应的通孔B,通孔A和通孔B的内壁上均设有橡胶垫,通孔A的顶部设有与上固定板上板面在同一水平面的定位环A,通孔B的底部设有与下固定板下板面在同一水平面的定位环B,通孔A和通孔B将多个锂离子电池固定,橡胶垫避免了锂离子电池外壁的损伤,定位环A和定位环B对锂离子电池进行定位,避免锂离子电池上下移动,多个锂离子电池并联,铝塑包装膜将并联后的锂离子电池封装,将封装后的多个锂离子电池置于壳体内,铝塑包装膜的外表面设有温度检测装置,温度检测装置与温度显示器连接,温度显示器设置于壳体的外部,新能源锂离子电池组充放电时,可以监测内部电池的温度变化,避免温度过高,造成安全隐患。
进一步的,四氟硼酸锂和双氟磺酰亚胺锂的质量比为2:1;碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯的质量比为1:1:1.5;三氟代甲基碳酸乙烯酸和三氟均三嗪的质量比为1:1.2。
更进一步的,卷绕式锂离子电池的电解液中,溶质占的量为1.8mol/L,阻燃添加剂占的质量分数为5.5%,负极成膜添加剂占的质量分数为6%,其余为溶剂。
在上述技术方案的基础上,温度检测装置与51单片机连接,51单片机可将信号通过无线通讯模块传输至手机端;优选的,无线通信模块为WIFI模块;更优选的,51单片机还与报警装置连接;报警装置优选为语音报警装置。
在上述技术方案的基础上,锂离子电池为卷绕式锂离子电池。
本发明具有如下优点:
本发明锂离子电池组中的电池安装更加牢固,避免了电池组颠簸过程中锂离子电池收到的损伤,本发明通过互联网可以实时的对电池热量进行检测,锂离子电池使用的电解质中,溶质为四氟硼酸锂和双氟磺酰亚胺锂,阻燃添加剂为三氟代甲基碳酸乙烯酸和三氟均三嗪,溶质为碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯,另外,还添加了负极成膜添加剂马来酸酐;本发明提高了电池的导电性,有较强的耐燃能力,提高了电池的快充性能,提高了电解液和负极界面的稳定性。
附图说明
图1为本发明结构示意图;
图2为上固定板结构示意图;
图3为下固定板结构示意图;
图4为定位环A结构示意图;
图5为定位环B结构示意图。
符号说明
1.锂离子电池、2.上固定板、3.下固定板、4.铝塑包装膜、5.壳体、6.通孔A、7.通孔B、8.橡胶垫、9.定位环A、10.定位环B、11.温度检测装置、12.温度显示器、13.51单片机、14.手机端、15.报警装置。
具体实施方式
下面结合附图和实例对本发明作进一步说明:
实施例1
利用互联网监测的新能源锂离子电池组中使用的电解液,使用的电解液包括溶质四氟硼酸锂和双氟磺酰亚胺锂,溶剂碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯,阻燃添加剂三氟代甲基碳酸乙烯酸和三氟均三嗪,负极成膜添加剂马来酸酐;其中,在电解液中,溶质占的量为1.8mol/L,阻燃添加剂占的质量分数为5.5%,负极成膜添加剂占的质量分数为6%,其余为溶剂;四氟硼酸锂和双氟磺酰亚胺锂的质量比为2:1;碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯的质量比为1:1:1.5;三氟代甲基碳酸乙烯酸和三氟均三嗪的质量比为1:1.2;
如图1-5所示,新能源锂离子电池组包括多个锂离子电池1、上固定板2、下固定板3、铝塑包装膜4和壳体5,上固定板2上设有与锂离子电池1数量相同的通孔A 6,下固定板3上设有与通孔A 6相对应的通孔B 7,通孔A 6和通孔B 7的内壁上均设有橡胶垫8,通孔A 6的顶部设有与上固定板2上板面在同一水平面的定位环A 9,通孔B 7的底部设有与下固定板3下板面在同一水平面的定位环B 10,通孔A 6和通孔B 7将多个锂离子电池1固定,多个锂离子电池1并联,铝塑包装膜4将并联后的锂离子电池1封装,将封装后的多个锂离子电池1置于壳体5内,铝塑包装膜4的外表面设有温度检测装置11,温度检测装置11与温度显示器12连接,温度显示器12设置于壳体5的外部。
实施例2
在实施例1的基础上,如图1-5所示,温度检测装置11与51单片机13连接,51单片机13可将信号通过WIFI模块传输至手机端14;51单片机13还与语音报警装置15连接;锂离子电池1为卷绕式锂离子电池。
试验例
电解液:本发明实施例1中的电解液;
正极:活性物质为钴酸锂、导电材料为乙炔黑;
负极:活性物质为人造石墨、导电材料为乙炔黑。
按照常规工艺将电解液、正极、负极组装成锂离子电池,测试锂离子电池在循环充放电300次后, 25℃时电池容量百分率为90%,85℃下搁置4h后电池膨胀率为43%,25℃的电导率为12.65ms/cm,60℃的电导率为10.11ms/cm,70℃的电导率为8.23ms/cm。
上面以举例方式对本发明进行了说明,但本发明不限于上述具体实施例,凡基于本发明所做的任何改动或变型均属于本发明要求保护的范围。

Claims (8)

1.利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,使用的电解液包括溶质四氟硼酸锂和双氟磺酰亚胺锂,溶剂碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯,阻燃添加剂三氟代甲基碳酸乙烯酸和三氟均三嗪,负极成膜添加剂马来酸酐;其中,在电解液中,溶质占的量为1.5-2mol/L,阻燃添加剂占的质量分数为4.5-6%,负极成膜添加剂占的质量分数为5.5-6.5%,其余为溶剂;
新能源锂离子电池组包括多个锂离子电池、上固定板、下固定板、铝塑包装膜和壳体,上固定板上设有与锂离子电池数量相同的通孔A,下固定板上设有与通孔A相对应的通孔B,通孔A和通孔B的内壁上均设有橡胶垫,通孔A的顶部设有与上固定板上板面在同一水平面的定位环A,通孔B的底部设有与下固定板下板面在同一水平面的定位环B,通孔A和通孔B将多个锂离子电池固定,多个锂离子电池并联,铝塑包装膜将并联后的锂离子电池封装,将封装后的多个锂离子电池置于壳体内,铝塑包装膜的外表面设有温度检测装置,温度检测装置与温度显示器连接,温度显示器设置于壳体的外部。
2.根据权利要求1所述的利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,四氟硼酸锂和双氟磺酰亚胺锂的质量比为2:1;碳酸乙烯酯、碳酸丙烯酯和碳酸二乙酯的质量比为1:1:1.5;三氟代甲基碳酸乙烯酸和三氟均三嗪的质量比为1:1.2。
3.根据权利要求1所述的利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,在电解液中,溶质占的量为1.8mol/L,阻燃添加剂占的质量分数为5.5%,负极成膜添加剂占的质量分数为6%,其余为溶剂。
4.根据权利要求1所述的利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,温度检测装置与51单片机连接,51单片机可将信号通过无线通讯模块传输至手机端。
5.根据权利要求4所述的利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,无线通信模块为WIFI模块。
6.根据权利要求4所述的利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,51单片机还与报警装置连接。
7.根据权利要求6所述的利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,报警装置为语音报警装置。
8.根据权利要求1所述的利用互联网监测的新能源锂离子电池组中使用的电解液,其特征在于,锂离子电池为卷绕式锂离子电池。
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