title: Self-Regulative Nanogelator Solid Electrolyte: A New Option to Improve the Safety of Lithium Battery.
abstract: 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 × 10-3S cm-1at 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.
authors: Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P.R. China; Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081 P. R. China.
authors: Feng
authors: F
authors: Wu
authors: Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P.R. China.
authors: Nan
authors: N
authors: Chen
authors: Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P.R. China; Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081 P. R. China.
authors: Renjie
authors: R
authors: Chen
authors: Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P.R. China.
authors: Qizhen
authors: Q
authors: Zhu
authors: Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P.R. China.
authors: Guoqiang
authors: G
authors: Tan
authors: Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P.R. China; Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081 P. R. China.
authors: Li
authors: L
authors: Li
keywords: ionic liquid; lithium battery technology; nanogelators; solid electrolyte