Synthesis and structure of novel lithium-ion conductor Li₇Ge₃PS₁₂

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• 作者：Yuki Inoue^a ; Kota Suzuki^a ; ^b ; Naoki Matsui^a ; Masaaki Hirayama^a ; ^b ; Ryoji Kanno^a ; ^b ; ^{kanno@echem.titech.ac.jp}
• 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–GeS2–P2S5 system. This novel conductor revealed a cubic argyrodite-type structure. Li7Ge3PS12 exhibited a high ionic conductivity of 1.1×10−4 S cm−1 at 25 °C. These properties will aid in the design of superior lithium-ion conductors.