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Instantaneous preparation of high lithium-ion conducting sulfide solid electrolyte Li7P3S11 by a liquid phase process

机译:液相法瞬时制备高锂离子导电硫化物固体电解质Li 7 P 3 S 11

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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?°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 × 10?3 S cm?1 at 22 °C and a low activation energy of 12.8 kJ mol?1.
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。在此,我们报告了一种瞬时制备高锂离子导电硫化物固体电解质Li 7 P 3 S < small> 11 通过一个简单的程序进行,该程序包括在超声辐射下进行液相工艺并在220°C下进行低热处理。 30分钟的短反应时间足以形成PS 4 3? 单元。随后的干燥和加热过程导致Li 7 P 3 S 的沉淀粒径小于500 nm的11 相,实现了1.0×10 ?3 S cm 的高离子电导率在22°C下的?1 和12.8 kJ mol ?1 的低活化能。

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