title: A Highly Thermostable Ceramic-Grafted Microporous Polyethylene Separator for Safer Lithium-Ion Batteries.
abstract: The safety concern is a critical obstacle to large-scale energy storage applications of lithium-ion batteries. A thermostable separator is one of the most effective means to construct the safe lithium-ion batteries. Herein, we demonstrate a novel ceramic (SiO2)-grafted PE separator prepared by electron beam irradiation. The separator shows similar thickness and pore structure to the bare separator, while displaying strong dimensional thermostability, as the shrinkage ratio is only 20% even at an elevated temperature of 180 °C. Besides, the separator is highly electrochemically inert, showing no adverse effect on the energy and power output of the batteries. Considering the excellent electrochemical and thermal stability, the SiO2-grafted PE separator developed in this work is greatly beneficial for constructing safer lithium-ion batteries.
authors.affiliation: Hubei Collaboration Innovation Center of Non-power Nuclear Technology, Hubei University of Science and Technology , Xianning 437100, P. R. China.|School of Nuclear Technology & Chemistry and Biology, Hubei University of Science and Technology , Xianning 437100, P. R. China.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Zhu
authors.affiliation: College of Chemistry and Molecular Science, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Jiang
authors.affiliation: College of Chemistry and Molecular Science, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Xinping
authors.initials: X
authors.lastname: Ai
authors.affiliation: College of Chemistry and Molecular Science, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Hanxi
authors.initials: H
authors.lastname: Yang
authors.affiliation: College of Chemistry and Molecular Science, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Cao
keywords: ceramic-grafted separator; electron beam irradiation; lithium-ion battery; safety; thermal property