Synthesis and structure of novel lithium-ion conductor Li<sub>7sub>Ge<sub>3sub>PS<sub>12sub>

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• 作者：Yuki Inoue<sup>asup> ; Kota Suzuki<sup>asup><sup> ; sup><sup>bsup> ; Naoki Matsui<sup>asup> ; Masaaki Hirayama<sup>asup><sup> ; sup><sup>bsup> ; Ryoji Kanno<sup>asup><sup> ; sup><sup>bsup><sup> ; sup><sup>kanno@echem.titech.ac.jpsup>
• 关键词：Lithium ion conductor ; Argyrodite structure ; Li7Ge3PS12 ; All-solid-state battery
• 刊名：Journal of Solid State Chemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：246
• 期：Complete
• 页码：334-340
• 全文大小：1031 K
• 卷排序：246

文摘

A novel lithium-ion conductor Li7Ge3PS12 was detected. This was achieved through slow cooling of the ternary Li2S&ndash;GeS2&ndash;P2S5 system. This novel conductor revealed a cubic argyrodite-type structure. Li7Ge3PS12 exhibited a high ionic conductivity of 1.1&times;10&minus;4 S cm&minus;1 at 25 °C. These properties will aid in the design of superior lithium-ion conductors.