Idemitsu Kosan Company, Limited

Shota Totsuka

Hironari Kimpara

Atsushi Sato

Naoya Masuda

Atsushi Yao

Hiroaki Yamada

Shinobu Yamao

Toru Bando

Masayuki Shibata

Junpei Maruyama

Mitsutake Nakamura

The present invention relates to a method for producing a crystalline solid electrolyte having a small particle diameter and also having a high ionic conductivity and containing a lithium element, a sulfur element, a phosphorus element and a halogen element, the method including a complexing step of mixing a solid electrolyte raw material and a complexing agent in a liquid phase, wherein the method includes a mixing step of obtaining a precursor containing a lithium element, a sulfur element, and a phosphorus element; and a crystallization step of heating the precursor in a solvent using a pressure-resistant container or while refluxing.

Method for producing solid electrolyte

A method of production of a solid electrolyte having an Argyrodite-type crystal structure, including steps of mixing raw materials such that lithium (Li), phosphorus (P), sulfur (S), oxygen (O), and halogen (X) satisfy the following formulas (11) to (14) to obtain a mixture; and heating the mixture:4.8≤Li/P≤5.3  (11)3.8≤S/P≤4.4  (12)0<O/P≤0.8  (13)1.0<X/P≤2.0  (14)

Solid electrolyte and method for producing same

A method of production of a solid electrolyte, which comprises:

A method for producing a solid electrolyte having an argyrodite-type crystal structure, the method comprising:

Method for producing solid electrolyte having argyrodite type crystal structure

Electrically conductive composition

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Sodegaura, Japan

Shota Totsuka