公开(公告)号：US20200220208A1

公开(公告)日：2020-07-09

申请号：US16637513

申请日：2018-08-06

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Futoshi UTSUNO ,  Toshiaki TSUNO ,  Kota TERAI ,  Atsushi SATO

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M10/48 ,  H01M10/653 ,  H01M4/1315 ,  C01B25/14

Abstract: A sulfide solid electrolyte comprising lithium, phosphorus and sulfur, wherein the sulfide solid electrolyte has a diffraction peak A at 2θ=25.2±0.5 deg and a diffraction peak B at 29.7±0.5 deg in powder X-ray diffraction using CuKα rays, an area ratio of a peak derived from PS43− glass to the total area of peaks derived from glass observed in solid 31P-NMR measurement is 90% or more and 100% or less, and an area ratio of peaks derived from glass to the total area of all peaks at 60 to 120 ppm observed in solid 31P-NMR measurement is 1% or more and 45% or less.

公开(公告)号：US20200006808A1

公开(公告)日：2020-01-02

申请号：US16491659

申请日：2018-03-08

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Futoshi UTSUNO ,  Toshiaki TSUNO ,  Kota TERAI ,  Hironari KIMPARA ,  Atsushi SATO

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/13 ,  H01B1/10 ,  C01B17/22

Abstract: A sulfide solid electrolyte particles comprising lithium, phosphorus and sulfur, having a volume-based average particle size measured by laser diffraction particle size distribution measurement of 0.1 μm or more and 10 μm or less, having a diffraction peak having 2θ ranging from 29.0 to 31.0 deg in powder X-ray diffraction measurement using CuKα ray, and an intensity ratio (Ib/Ip) of a peak intensity Ip of the diffraction peak to a diffraction intensity Ib at a high angle-side low part of the diffraction peak is less than 0.09.

公开(公告)号：US20180155198A1

公开(公告)日：2018-06-07

申请号：US15737624

申请日：2016-06-16

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Atsushi SATO ,  Minoru SENGA ,  Masao AIDA

IPC: C01B25/14 ,  B01J19/20 ,  H01M10/0562

CPC classification number: C01B25/14 ,  B01J19/20 ,  C01P2002/72 ,  C01P2006/40 ,  H01B13/00 ,  H01M6/18 ,  H01M10/0562 ,  H01M2220/30 ,  H01M2300/0068

Abstract: The invention provides a method for producing a solid electrolyte, which includes reacting two or more kinds of solid raw materials using a multi-axial kneading machine to give an amorphous solid electrolyte, and which can provide amorphous and crystalline solid electrolytes with excellent productivity and mass-productivity, as well as a method for producing a crystalline solid electrolyte including producing the amorphous solid electrolyte followed by heating the solid electrolyte.

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：US20210284534A1

公开(公告)日：2021-09-16

申请号：US16986335

申请日：2020-08-06

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Hiroaki YAMADA ,  Hironari KIMPARA ,  Shota TOTSUKA ,  Atsushi SATO

IPC: C01B17/38 ,  H01M10/0562 ,  H01M10/058

Abstract: A method of production of a solid electrolyte, which comprises: a step of obtaining a mixture comprising a sulfide solid electrolyte and a tertiary alcohol including 9 or less carbon atoms, and a step of removing the tertiary alcohol from the mixture.