材料科学
电解质
阴极
离子电导率
粒径
电导率
复合数
快离子导体
球磨机
化学工程
硫化物
粒子(生态学)
离子
复合材料
冶金
化学
电极
物理化学
有机化学
工程类
地质学
海洋学
作者
Marvin Cronau,Marc Duchardt,Marvin Szabo,Bernhard Roling
标识
DOI:10.1002/batt.202200041
摘要
Abstract For the fabrication of high‐energy and high‐power all‐solid‐state batteries (ASSBs), easily synthesizable solid electrolytes are needed, which enable fast ion transport inside the composite cathode as well as good contacts between cathode active material and solid electrolyte particles. Regarding the latter, the size ratio of the particles inside the composite cathode has to be optimized. Here, we use a wet ball milling process for the synthesis of agyrodite‐type Li 5.5 PS 4.5 Cl 1.5 solid electrolyte particles and study the influence of milling time on particle size and ionic conductivity. With longer milling time, both the solid electrolyte particle size and the ionic conductivity decrease, which exert an opposing influence on the cathode performance. We show that a milling time of approximately 2 h leads to an optimum cathode performance, as this time is sufficient for a favorable particle size ratio, while a strong drop of the ionic conductivity of Li 5.5 PS 4.5 Cl 1.5 is avoided.
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