Water as dispersion medium to fabricate homogeneous nanohectorite solid-state electrolyte for suppressing lithium dendrite  

作　　者：Xin Pei Wenfei Wei Gang He 

机构地区：[1]Xinjiang Institute of Technology,Xinjiang,843100,China [2]Engineering Research Center of Nano-Geomaterials of Ministry of Education,Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan,430074,China [3]Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,Qinghai,810008,China

出　　处：《Journal of Materiomics》2024年第2期463-470,共8页无机材料学学报（英文）

基　　金：supported by the National Natural Science Foundation of China(22205147).

摘　　要：The rational design of green chemical,low-cost,and highly efficient solid-state electrolytes for Li-metal anode is a promising but still challenging strategy for preventing Li dendrite growth and developing safe and ultralong cycle life Li-metal batteries.Herein,a homogeneous composite solid polymer electrolyte(CSPE)is fabricated with water as the ideal dispersion medium,hectorite(Ht)as nanofiller,and poly(ethylene oxide)(PEO)as the matrix,to guide uniform Li plating/stripping.Benefiting from the merit of Ht can form uniformly dispersed nanosheets in water,the obtained CSPE inheres to a low melting point,robust mechanical property,and high Li^(+)transference number.Moreover,the fabricated Li symmetric battery using PEO-Ht-LiClO_(4)CSPE keeps cycling steadily for 4000 h.The well demonstrated water-based CSPE paves the way for developing low-cost,environmentally friendly,and safe solid-state electrolytes for Li-metal batteries.

关 键 词：WATER Solid-state electrolytes HOMOGENEOUS HECTORITE Li-metal battery 

分 类 号：TB383[一般工业技术—材料科学与工程]