A solid electrolyte with a small particle size, good mechanical properties and high ionic conductivity is required to achieve high energy and power density in the all-solid-state battery. Here, we report an instantaneous preparation of high lithium-ion conducting sulfide solid electrolyte Li7P3S11 by a simple procedure involving a liquid phase process under ultrasonic irradiation and low thermal treatment at 220 degrees C. A short reaction time of 30 min was enough to produce the formation of PS43- units. Subsequent drying and heating processes led to the precipitation of the Li7P3S11 phase with a particle size below 500 nm, achieving high ionic conductivity of 1.0 x 10(-3) S cm(-1) at 22 degrees C and a low activation energy of 12.8 kJ mol(-1).
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机译：为了在全固态电池中实现高能量和功率密度，需要具有小粒径，良好机械性能和高离子电导率的固体电解质。在这里，我们报告了通过一个简单的程序，即在超声波辐射下进行液相工艺并在220℃下进行低热处理，瞬时制备高锂离子导电性硫化物固体电解质Li7P3S11。30分钟的短反应时间足以制备出形成PS43-单位。随后的干燥和加热过程导致Li7P3S11相的沉淀，其粒径低于500 nm，在22摄氏度下实现了1.0 x 10（-3）S cm（-1）的高离子电导率和12.8的低活化能kJ mol（-1）。
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