电解质
硫化物
离子电导率
材料科学
烧结
电化学
快离子导体
电化学窗口
电导率
相容性(地球化学)
化学工程
锂(药物)
分离器(采油)
离子键合
离子
电极
化学
冶金
复合材料
物理化学
热力学
有机化学
内分泌学
工程类
物理
医学
作者
Jianwei Li,Yuanyuan Li,Shengnan Zhang,Deping Li,Lijie Ci
标识
DOI:10.1016/j.etran.2023.100236
摘要
All-solid-state batteries are considered as a promising energy storage system thanks to the high energy density and intrinsic safety. Sulfide solid electrolytes, a key component, are of interest owing to their high ionic conductivity and wide electrochemical windows. However, it remains a great challenge to simultaneously improve the ionic conductivity and the ability to inhibit lithium dendrites. Here, we report a strategy to obtain sulfide solid electrolyte with excellent interfacial compatibility and the high ionic conductivity via two-step sintering. The obtained electrolyte possesses excellent interfacial compatibility with lithium metal (>1000 h) and improved critical current density (1.05 mA cm−2). Meanwhile, the all-solid-state batteries deliver a high discharge capacity of 160 mA h g−1 with excellent stability of 90.4% after 100 cycles at 0.1C at room temperature. This study provides a novel and effective strategy for tuning the properties of sulfide electrolyte and promotes the practical application in sulfide-based all-solid-state batteries.
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