公开(公告)号：US20200168944A1

公开(公告)日：2020-05-28

申请号：US16084131

申请日：2017-03-14

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Takeshi MAKINO

IPC: H01M10/0562 ,  C01D15/04 ,  H01M10/0525

Abstract: Provided is a method for producing an alkali metal halide, including causing a reaction of an alkali metal sulfide and a substance represented by the following general formula (1) in the absence of a solvent or in a solvent except for water: X2 (1), wherein X represents a halogen element.

公开(公告)号：US20230378525A1

公开(公告)日：2023-11-23

申请号：US18030286

申请日：2021-10-08

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kota TERAI ,  Katsuhito KONDO ,  Takeshi MAKINO ,  Atsushi SATO ,  Hiroyuki HIGUCHI

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0068

Abstract: An object of the present invention is to provide sulfide solid electrolyte glass ceramics that have a high ionic conductivity and an enhanced water resistance, and is also to provide a method of producing the sulfide solid electrolyte glass ceramics. Sulfide solid electrolyte glass ceramics that have peaks at 20.2° and 23.6° in an X-ray diffractometry (XRD) using the CuKα line, a crystallite diameter of 30 nm or more, and a P2S64− phosphorus proportion obtained by a solid 31P-NMR spectroscopy of 4.5% by mol or less, and a method of producing the sulfide solid electrolyte glass ceramics are provided.

公开(公告)号：US20200259210A1

公开(公告)日：2020-08-13

申请号：US16084055

申请日：2017-03-14

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Takeshi MAKINO

IPC: H01M10/0562 ,  C03C10/16 ,  H01B1/10

Abstract: Provided is a solid electrolyte having a high ion conductivity and excellent in battery performance not going through a step of removing water such as a drying step, while simplifying the production process and reducing the production cost. Specifically, provided is a method for producing a sulfide-based solid electrolyte, including causing a reaction of an alkali metal sulfide and a specific substance through treatment of mixing, stirring, grinding or a combination thereof, in the absence of a solvent or in a solvent except for water.

公开(公告)号：US20200373612A1

公开(公告)日：2020-11-26

申请号：US16494113

申请日：2018-03-12

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Hiroaki YAMADA ,  Takeshi MAKINO

IPC: H01M10/0562 ,  C03C10/00

Abstract: Disclosed is a method for producing a sulfide-based solid electrolyte containing an alkali metal, a sulfur element, a phosphorus element and a halogen element, including performing a reaction of an alkali metal sulfide and a substance containing at least one element of a sulfur element, a phosphorus element and a halogen element in an organic solvent having an electron-withdrawing group. The method provides a sulfide-based solid electrolyte having a high ion conductivity.

公开(公告)号：US20190074542A1

公开(公告)日：2019-03-07

申请号：US16084114

申请日：2017-03-14

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Takeshi MAKINO ,  Hiroaki YAMADA

IPC: H01M10/0562 ,  C03C10/16 ,  C03C4/14 ,  C03C3/32 ,  H01M10/0525

Abstract: Provided is a solid electrolyte having a high ion conductivity and excellent in battery performance not going through a step of removing water such as a drying step, while simplifying the production process and reducing the production cost. Specifically, provided is a method for producing a sulfide-based solid electrolyte, including causing a reaction of an alkali metal sulfide and a specific substance in a solvent.