Gel polymer electrolyte with ionic liquid for high performance lithium sulfur battery
作者： Jun Jin , Zhaoyin Wen , Xiao Liang , Yanming Cui , Xiangwei Wu
DOI: 10.1016/J.SSI.2012.03.012
关键词: Chemistry 、 Electrolyte 、 Lithium-ion battery 、 Inorganic chemistry 、 Thermal stability 、 Lithium–sulfur battery 、 Polymer 、 Ionic liquid 、 Membrane 、 Lithium vanadium phosphate battery
摘要: Abstract Poly(vinylidenefluoride-hexafluoropropylene)[P(VDF-HFP)] membrane with porous structure was prepared by a simple phase separation process. The gel polymer electrolyte (GPE) combining the N-methyl-N-butylpyrrolidinium bis(trifluoromethanesulfonyl)imide ionic liquid shows good thermal stability, high anodic oxidation potential (> 5.0 V vs. Li/Li + ) and interfacial stability lithium electrode. sulfur battery GPE delivers an initial discharge capacity 1217.7 mAh g − 1 maintains reversible of 818 mAh g after 20 cycles at current density 50 mA g .
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