Mechanochemical synthesis and characterization of amorphous Li2CN2 as a lithium ion conductor

Takuya KIMURA; Chie HOTEHAMA; Atsushi SAKUDA; Akitoshi HAYASHI; Masahiro TATSUMISAGO

doi:10.2109/jcersj2.19077

Express letters

Mechanochemical synthesis and characterization of amorphous Li₂CN₂ as a lithium ion conductor

Takuya KIMURA, Chie HOTEHAMA, Atsushi SAKUDA, Akitoshi HAYASHI, Masahiro TATSUMISAGO

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Keywords: All-solid-state battery, Solid electrolytes, Lithium-ion conductor, Nitride, Amorphous

JOURNAL FREE ACCESS

2019 Volume 127 Issue 8 Pages 518-520

DOI https://doi.org/10.2109/jcersj2.19077

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Abstract

Drastically higher conductivity was found in the amorphous lithium-ion conducting nitride relative to the crystal. The amorphous Li₂CN₂ prepared by a mechanochemical process has the conductivity of 1.1 × 10⁻⁶ S cm⁻¹ at 25°C, which is more than 1000 times higher than that of the crystalline form. The nitride has a better deformability compared to Li₃BO₃ oxide glass.

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