Idemitsu Kosan Company, Limited

Takashi Umeki

Futoshi Utsuno

Masaru Nakagawa

Kota Terai

Hiroshi Yamaguchi

Kozo Takatsu

Minoru Senga

Tetsuya Fukunaga

Tomoki Yanagino

Yoshimi Kawashima

Takayoshi Kambara

Satoshi Nakai

Naoya Masuda

Katsuhito Kondo

A sulfide solid electrolyte that contains lithium, phosphorus, sulfur, chlorine and bromine, wherein in powder X-ray diffraction analysis using CuKα rays, it has a diffraction peak A at 2θ=25.2±0.5 deg and a diffraction peak B at 2θ=29.7±0.5 deg, the diffraction peak A and the diffraction peak B satisfy the following formula (A), and a molar ratio of the chlorine to the phosphorus 'c (Cl/P)' and a molar ratio of the bromine to the phosphorus “d (Br/P)” satisfies the following formula (1):1.2<<1.9  (1)0.845<<1.200  (A)

Sulfide solid electrolyte

A sulfide solid electrolyte that contains lithium, phosphorus, sulfur, chlorine and bromine, wherein in powder X-ray diffraction analysis using CuK&#x3b1; rays, it has a diffraction peak A at 2&#x3b8;=25.2&#xb1;0.5 deg and a diffraction peak B at 2&#x3b8;=29.7&#xb1;0.5 deg, the diffraction peak A and the diffraction peak B satisfy the following formula (A), and a molar ratio of the chlorine to the phosphorus 'c (Cl/P)' and a molar ratio of the bromine to the phosphorus 'd (Br/P)' satisfies the following formula (1):1.2&#x3c;&#x3c;1.9&#x2003;&#x2003;(1)0.845&#x3c;&#x3c;1.200&#x2003;&#x2003;(A)

A sulfide solid electrolyte that contains lithium, phosphorus, sulfur, chlorine and bromine, wherein in powder X-ray diffraction analysis using CuK&#x3b1; rays, it has a diffraction peak A at 2&#x3b8;=25.2&#xb1;0.5 deg and a diffraction peek B at 2&#x3b8;=29.7&#xb1;0.5 deg, the diffraction peak A and the diffraction peak B satisfy the following formula (A), and a molar ratio of the chlorine to the phosphorus 'c (Cl/P)' and a molar ratio of the bromine to the phosphorus 'd (Br/P)' satisfies the following formula (1):1.2&#x3c;&#x3c;1.9&#x2003;&#x2003;(1)0.845&#x3c;&#x3c;1.200&#x2003;&#x2003;(A)

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

To provide a sulfur-containing complex having few impurities, a method for producing the complex at a higher production efficiency, and a method for producing a solid electrolyte using the complex, a sulfur-containing complex, containing a lithium sulfide and a lithium halide, exhibiting, in X-ray diffractometry using a CuK&#x3b1; ray, the diffraction angle of the peak of lithium halide shifting toward the diffraction angle of the peak of lithium sulfide, and not containing an oxygen-containing lithium halide represented by LiOX (where X represents a halogen element) is provided. And a production method for a sulfur-containing complex including heating a solution containing a lithium hydrosulfide and a lithium halide in the presence of hydrogen sulfide is also provided.

Complex comprising sulfur, a method for manufacturing the same, and a method for manufacturing a solid electrolyte

A sulfide solid electrolyte containing lithium, phosphorus, sulfur, and two or more of elements X selected from halogen elements, where the sulfide solid electrolyte includes an argyrodite-type crystal structure, and a molar ratio of the sulfur to the phosphorus 'b (S/P)' and a molar ratio of the element X to the phosphorus 'c (X/P)' satisfy the following formula (1):0.23&#x3c;0.57&#x2003;&#x2003;(1).

The present invention relates to a catalyst for reforming a hydrocarbon comprising a carrier containing manganese oxide and carried thereon (a) at least one component selected from a ruthenium component, a platinum component, a rhodium component, a palladium component, an iridium component and a nickel component and a process for producing the same and to a process for reforming a hydrocarbon (steam reforming, self thermal reforming, partial oxidation reforming and carbon dioxide reforming) using the above catalyst. Provided are a catalyst for reforming a hydrocarbon which comprises ruthenium, platinum, rhodium, palladium, iridium or nickel as an active component and in which a reforming activity is elevated, a process for producing the same, and a steam reforming process, a self thermal reforming process, a partial oxidation reforming process and a carbon dioxide reforming process for a hydrocarbon using the above catalyst.

Catalyst for reforming hydrocarbon and method for preparation thereof, and process for reforming hydrocarbon using said catalyst

The invention provides a catalyst for carbon monoxide conversion, comprising from 10 to 90% by mass of a copper oxide ingredient, from 5 to 50% by mass of a zinc oxide ingredient and from 10 to 50% by mass of an aluminum oxide ingredient, and having a specific surface area of from 100 to 300 m/g, a carbon monoxide adsorption of from 20 to 80 &#x3bc;mol/g, and a copper oxide crystallite diameter of at most 200 angstroms, as a catalyst suitable for carbon monoxide conversion for fully reducing carbon monoxide in the hydrogen gas obtained through reforming of a starting hydrocarbon material, for the purpose of enabling stable long-term operation of a fuel cell which uses hydrogen gas as a fuel and which is frequently and repeatedly started and stopped.

Growing community of inventors

Sodegaura, Japan

Takashi Umeki