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Correlated Li-ion migration in the superionic conductor Li$$_{10}$$GeP$$_{2}$$S$$_{12}$$

超イオン伝導体Li$$_{10}$$GeP$$_{2}$$S$$_{12}$$におけるリチウムイオンの協奏的移動

矢島 健*; 日沼 洋陽*; 堀 智*; 岩崎 類*; 菅野 了次*; 大原 高志  ; 中尾 朗子*; 宗像 孝司*; 広井 善二*

Yajima, Takeshi*; Hinuma, Yoyo*; Hori, Satoshi*; Iwasaki, Rui*; Kanno, Ryoji*; Ohara, Takashi; Nakao, Akiko*; Munakata, Koji*; Hiroi, Zenji*

Herein, we studied the crystalline compound Li$$_{10}$$GeP$$_{2}$$S$$_{12}$$ with the largest Li-ion conductivity thus far via a novel route based on a combination of single-crystal neutron diffraction experiments at low temperature and first-principles calculations, and found that a correlated migration of the densely packed Li ions governs the overall Li-ion conduction. The correlated migration mechanism provides us with guidelines on how to design efficient superionic conductors for more efficient batteries.

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分野:Chemistry, Physical

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