Idemitsu Kosan Company, Limited

Toyota Jidosha Kabushiki Kaisha

Takayoshi Kambara

Hiroyuki Higuchi

Tadanori Junke

Minoru Senga

Masaru Nakagawa

Hiroyuki Tamura

Ryo Aburatani

Yoshikatsu Seino

Tsuyoshi Ota

Naoya Masuda

Katsuhito Kondo

Shigenori Hama

Atsushi Sato

Futoshi Utsuno

Takayuki Uchiyama

Takayoshi Doi

Takashi Umeki

Takuo Yanagi

Takumi Tanaka

Hirokazu Kawaoka

Hironari Kimpara

Masakatsu Kimura

Hiromichi Koshika

A method for producing a sulfide solid electrolyte having an argyrodite-type crystal structure may involve: mixing a raw material containing elemental phosphorus at an integrated power of 0.5 kWh/kg or more, and heat-treating a precursor obtained in the mixing at 350 to 500° C.

Method for producing sulfide solid electrolyte having argyrodite-type crystal structure

Provided is a method for producing a solid electrolyte having peaks at 2&#x3b8;=20.2&#xb0;&#xb1;0.5&#xb0; and 23.6&#xb0;&#xb1;0.5&#xb0; in X-ray diffractometry using a CuK&#x3b1; ray and containing a lithium element, a phosphorus element, a sulfur element, and a halogen element, the method including using raw materials containing yellow phosphorus and a compound containing a lithium element, a sulfur element, and a halogen element.

Production method for solid electrolyte

A method for producing a solid electrolyte comprising feeding a solid electrolyte raw material-containing liquid comprising: a solid electrolyte raw material comprising lithium, phosphorus, sulfur and chlorine; and a solvent, to a liquid or gas medium having a temperature higher than the boiling point of the solvent, thereby evaporating the solvent and reacting the solid electrolyte raw material to precipitate a solid electrolyte having an argyrodite-type crystal structure.

Method for producing solid electrolyte

A solid electrolyte glass at least including: at least one alkali metal element; a phosphorus (P) element; a sulfur (S) element; and one or more halogen elements selected from I, Cl, Br and F; wherein the solid electrolyte glass has two exothermic peaks that are separated from each other in a temperature range of 150&#xb0; C. to 350&#xb0; C. as determined by differential scanning calorimetry (in a dry nitrogen atmosphere at a temperature-elevating speed of 10&#xb0; C./min from 20 to 600&#xb0; C.).

Solid electrolyte

A method for producing a sulfide glass ceramic, including reacting a lithium compound, a phosphorus compound and a halogen compound in a solvent that contains a hydrocarbon and an ether compound to produce a sulfide glass that contains a Li element, a P element, a S element and one or more halogen elements, and heating the sulfide glass to produce a sulfide glass ceramic.

Method for producing sulfide solid electrolyte

A positive electrode mix including a solid electrolyte and a sulfur-based active material, wherein the solid electrolyte comprises a Li element or a Na element; a S element; and a halogen element selected from the group consisting of I, Br, Cl and F.

Positive electrode mix

A solid electrolyte including an alkali metal element, phosphorous, sulfur and halogen as constituent components.

A method for producing a solid electrolyte including step of bringing the following into contact with each other in a solvent having a solubility parameter of 9.0 or more: an alkali metal sulfide; one or two or more sulfur compounds selected from phosphorus sulfide, germanium sulfide, silicon sulfide and boron sulfide; and a halogen compound.

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Sodegaura, Japan

Takayoshi Kambara