Self-Regulative Nanogelator Solid Electrolyte: A New Option to Improve the Safety of Lithium Battery

被引：73

作者：

Wu, Feng ^{[1
,2
]}

Chen, Nan ^{[1
]}

Chen, Renjie ^{[1
,2
]}

Zhu, Qizhen ^{[1
]}

Tan, Guoqiang ^{[1
]}

Li, Li ^{[1
,2
]}

机构：

[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China

[2] Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China

来源：

ADVANCED SCIENCE | 2016年 / 3卷 / 01期

基金：

美国国家科学基金会;

关键词：

ELECTRICAL ENERGY-STORAGE; IONIC-LIQUID; POLYMER ELECTROLYTES; GEL ELECTROLYTES; HIGH-PERFORMANCE; COMPOSITES; IONOGELS;

D O I：

10.1002/advs.201500306

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The lack of suitable nonflammable electrolytes has delayed battery application in electric vehicles. A new approach to improve the safety performance for lithium battery is proposed here. This technology is based on a nanogelator-based solid electrolyte made of porous oxides and an ionic liquid. The electrolyte is fabricated using an in situ method and the porous oxides serve as a nonflammable "nanogelator" that spontaneously immobilizes the ionic liquid. The electrolyte exhibits a high liquid-like apparent ionic conductivity of 2.93 x 10(-3) S cm(-1) at room temperature. The results show that the nanogelator, which possess self-regulating ability, is able to immobilize imidazolium-, pyrrolidinium-, or piperidinium-based ionic liquids, simply by adjusting the ion transport channels. Our prototype batteries made of Ti-nanogeltor solid electrolyte outperform conventional lithium batteries made using ionic liquid and commercial organic liquid electrolytes.

引用

页数：9

共 37 条

[1]

An YX, 2011, INT J ELECTROCHEM SC, V6, P2398

[2]

Armand M, 2009, NAT MATER, V8, P621, DOI [10.1038/NMAT2448, 10.1038/nmat2448]

[3] Thermal instability of Olivine-type LiMnPO4 cathodes [J].