标题：Li7P3S11/poly(ethylene oxide) hybrid solid electrolytes with excellent interfacial compatibility for all-solid-state batteries
作者：Xu, Xiaoyan ;Hou, Guangmei ;Nie, Xiangkun ;Ai, Qing ;Liu, Yang ;Feng, Jinkui ;Zhang, Lin ;Si, Pengchao ;Guo, Shirui ;Ci, Lijie
作者机构：[Xu, Xiaoyan ;Hou, Guangmei ;Nie, Xiangkun ;Ai, Qing ;Feng, Jinkui ;Zhang, Lin ;Si, Pengchao ;Guo, Shirui ;Ci, Lijie ] SDU& Rice Joint Center for Carb 更多
来源：Journal of Power Sources
摘要：Low ionic conductivity and poor interfacial compatibility between lithium electrodes and Li7P3S11 sulfide solid electrolytes are the greatest challenges for all-solid state lithium-sulfur batteries. Herein, we introduce a hybrid solid electrolyte with Li7P3S11 being wrapped with polyethylene oxide-LiClO4 (PEO-LiClO4). As served as conductive bridge between Li7P3S11 particles, PEO-LiClO4 would provide Li+ transition paths between Li7P3S11 particles, thus successfully improve its ionic conductivity. Moreover, the polymer layer of PEO-LiClO4 can isolate lithium metal and Li7P3S11 solid electrolyte, suppressing the reaction between lithium electrode and Li7P3S11 electrolyte. Therefore, hybrid solid electrolyte Li7P3S11-PEO-LiClO4 shows excellent interfacial compatibility with lithium foil. Lithium-sulfur battery with the hybrid electrolyte Li7P3S11-PEO-LiClO4 exhibits much improved electrochemical performance with better cycling stability and higher Coulombic efficiency.
© 2018 Elsevier B.V.