材料科学
相容性(地球化学)
硫化物
电解质
兴奋剂
快离子导体
金属
氮气
无机化学
化学工程
冶金
复合材料
电极
化学
有机化学
物理化学
光电子学
工程类
作者
Zhaohua Luan,Pengfei Ren,Xiaofen Wang,Xiaofen Wang,Hong Chen,Qiong Zhou
摘要
Abstract Compared with oxide, halide, and polymer‐based solid electrolytes, Li‐ion conducting sulfide solid electrolytes exhibit remarkable ionic conductivity, electronic conductivity, and exceptional thermal and mechanical properties. Despite these advantages, the susceptibility of sulfide electrolytes to air and the formation of lithium dendrites on the anode hinder their large‐scale commercial application. In this study, we propose a doping strategy involving the nitrogen (N) element in sulfide electrolyte Li 5.5 PS 4.5 Cl 1.5 (LPSCl) with inherently high ionic conductivity. We have successfully synthesized Li 5.5+ x PS 4.5− x N x Cl 1.5 ( x = .025, .05, .07, .10) solid electrolytes by enhancing their air stability through doping. The modified electrolyte material demonstrates stable cycling performance exhibiting superior air stability compared to Li 5.5 PS 4.5 Cl 1.5 . The results indicate that the doped sulfide solid electrolyte effectively suppresses the growth of lithium dendrites, thereby enhancing the compatibility between the lithium metal anode and sulfide solid electrolyte.
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