公开(公告)号：US20240356089A1

公开(公告)日：2024-10-24

申请号：US18617742

申请日：2024-03-27

Applicant: AGC Inc.

Inventor： Ryota ANDO ,  Naoki FUJII

IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/0562

CPC classification number: H01M10/4235 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2300/008

Abstract: A sulfide solid electrolyte having an ignition time of 5 seconds or more or is non-ignitable when an ignition test is performed using a prescribed test method in a dry air atmosphere, and having a value of S5 nm/S100 nm of 0.6 or less when S5 nm is an elemental ratio of sulfur (S) at a depth of 5 nm from a surface and S100 nm is an elemental ratio of sulfur (S) at a depth of 100 nm from the surface, as measured by X-ray photoelectron spectroscopy.

公开(公告)号：US20240380002A1

公开(公告)日：2024-11-14

申请号：US18784750

申请日：2024-07-25

Applicant: AGC Inc.

Inventor： Seiji HIGASHI ,  Naoki FUJII ,  Hidenobu SEKI ,  Ryota ANDO

IPC: H01M10/0562 ,  H01M4/58 ,  H01M10/0525

Abstract: A method for producing a sulfide-based solid electrolyte includes obtaining a sulfide-based solid electrolyte recycled product (B) from a liquid in which a sulfide-based solid electrolyte (A) in a sulfide-based solid electrolyte-containing mixture is dissolved in an organic solvent. The sulfide-based solid electrolyte-containing mixture contains the sulfide-based solid electrolyte (A) and another substance insoluble in the organic solvent. The method includes obtaining a solid-liquid mixture by immersing the sulfide-based solid electrolyte-containing mixture in the organic solvent to dissolve the sulfide-based solid electrolyte (A) in the organic solvent while having the other substance remaining as a solid component in the organic solvent, obtaining the dried recycled product (B) by subjecting the solid-liquid mixture to solid-liquid separation, causing a sulfide-based solid electrolyte to be deposited out from an obtained liquid fraction, and vaporizing the organic solvent, and subjecting the recycled product (B) to a heat treatment at 340° C. or higher.

公开(公告)号：US20250019238A1

公开(公告)日：2025-01-16

申请号：US18898828

申请日：2024-09-27

Applicant: AGC Inc.

Inventor： Hidenobu SEKI ,  Norifumi OMORI ,  Seiji HIGASHI ,  Ryota ANDO

IPC: C01B17/22

Abstract: A method for producing lithium sulfide includes placing a powder containing a lithium element into a container, and while the container is sealed, vibrating the container from an outside to move the powder and reacting the powder with a gas comprising a sulfur element. The method may include temporarily reducing a pressure in the container in the middle of the reaction to lower than a pressure in the container at the time of the reaction, or reducing a pressure in the container after the reaction to lower than the pressure in the container at the time of the reaction.

公开(公告)号：US20240270575A1

公开(公告)日：2024-08-15

申请号：US18616291

申请日：2024-03-26

Applicant: AGC Inc.

Inventor： Ryota ANDO

IPC: C01B17/16 ,  C01B17/22

CPC classification number: C01B17/168 ,  C01B17/22 ,  C01B2210/0025 ,  C01B2210/0095

Abstract: The present invention relates to a hydrogen sulfide purification method including removing a lithium raw material from a mixed gas which is generated in a process of producing lithium sulfide by a reaction of hydrogen sulfide and the lithium raw material and which includes unreacted hydrogen sulfide and the lithium raw material.

公开(公告)号：US20230247734A1

公开(公告)日：2023-08-03

申请号：US18295903

申请日：2023-04-05

Applicant: AGC Inc.

Inventor： Ryota ANDO ,  Toshiyuki OYAMA ,  Shunsuke SUSA ,  Kenji YAMADA

IPC: H05B6/12

CPC classification number: H05B6/1209 ,  A47J36/02

Abstract: The present invention relates to a SiSiC member including at least one long hole provided therein, the SiSiC member including: a tubular region A which is an outer peripheral region of the long hole; and a tube exterior region B which is a region outside the tubular region A, in which a content of Si simple substance in the tube exterior region B in terms of vol % is higher than a content of Si simple substance in the tubular region A in terms of vol %.