Idemitsu Kosan Company, Limited

Atsushi Yao

Naoya Masuda

Hironari Kimpara

Shota Totsuka

Kazuyoshi Inoue

Atsushi Sato

Masatoshi Shibata

Emi Kawashima

Yusuke Iseki

Junpei Maruyama

Kenichi Sasaki

Takehiro Fujita

Akito Takashima

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

Provided is a method for producing a sulfide solid electrolyte having a high purity as side reaction hardly occurs, and having a high ionic conductivity, in a simplified manner. The method is for producing a sulfide solid electrolyte containing a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom, comprising separately preparing a complex (1) containing a sulfide that contains a lithium atom, a sulfur atom and a phosphorus atom, as a constituent element, and a complex (2) containing a halide that contains a lithium atom and a halogen atom, as a constituent element, and mixing the complex (1) and the complex (2).

Method for producing sulfide solid electrolyte

A compound includes indium element (In), gallium element (Ga), aluminum element (Al) and oxygen element (O), the compound having a triclinic crystal system with lattice constants being a=10.07&#xb1;0.15 &#x212b;, b=10.45&#xb1;0.15 &#x212b;, c=11.01&#xb1;0.15 &#x212b;, &#x3b1;=111.70&#xb1;0.50&#xb0;, &#x3b2;=107.70&#xb1;0.50&#xb0; and &#x3b3;=90.00&#xb1;0.50&#xb0;.

Compound

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

Growing community of inventors

Sodegaura, Japan

Atsushi Yao