Thermal-responsive electrolytes for reversible self-protection of electrochemical storage devices at excessive temperature
Thermal-responsive electrolytes for reversible self-protection of electrochemical storage devices at excessive temperature
复制标题
用于电化学存储装置在过高温度下可逆自我保护的热响应电解质
DOI:
10.1007/s11581-022-04714-0
复制
发表时间:
2022-09
期刊:
影响因子:
2.8
通讯作者:
Xu Xinhua
中科院分区:
文献类型:
--
作者:
Liu Shiteng;Ma Shaoshuai;Zhang Qian;Xu Xinhua
With the significant improvement of energy density and power density of electrochemical energy storage devices, a large amount of heat will be generated during operation, and fire or explosion may occur due to high internal temperature. However, the traditional method of controlling thermal runaway is slow and irreversible. Here, we investigate a reversible electrolyte system based on thermal-responsive polymers consisting of Pluronic F127, ionic liquid (IL) [EMIM]BF4, and a lithium salt. Pluronic-IL electrolyte responds by sol–gel transformation above the lower-critical solution temperature (LCST), which inhibits electrochemical energy conversion and effectively prevents thermal runaway at 160 ℃. We investigated the effects of operating temperature, lithium-ion concentration, and Pluronic concentration on electrochemical performance and proved that by regulating the concentration of Pluronic, the loss rate of capacitance can reach nearly 70%. It can be seen that this is a green and efficient method to control thermal runaway and may be practically used in lithium-ion batteries in the future.
登录
查看更多内容
影响因子:
29.4
作者:
Hui Yang;Zhiyuan Liu;Bevita K. Chandran;Jiyang Deng;Jiancan Yu;Dianpeng Qi;Wenlong Li;Yuxin Tang-Yuxin
通讯作者:
Hui Yang;Zhiyuan Liu;Bevita K. Chandran;Jiyang Deng;Jiancan Yu;Dianpeng Qi;Wenlong Li;Yuxin Tang-Yuxin
影响因子:
29.4
作者:
Yun Yang;Dandan Yu;Hua Wang;Lin Guo
通讯作者:
Yun Yang;Dandan Yu;Hua Wang;Lin Guo
影响因子:
16.6
作者:
Wu, Hui;Zhuo, Denys;Cui, Yi
通讯作者:
Cui, Yi
影响因子:
29.4
作者:
Shi, Ye;Ha, Heonjoo;Yu, Guihua
通讯作者:
Yu, Guihua
影响因子:
32.5
作者:
Panpan Zhang;Jinhui Wang;Wenbo Sheng;Faxing Wang;Jian Zhang;Feng Zhu;Xiaodong Zhuang;Rainer Jordan-R
通讯作者:
Panpan Zhang;Jinhui Wang;Wenbo Sheng;Faxing Wang;Jian Zhang;Feng Zhu;Xiaodong Zhuang;Rainer Jordan-R