公开(公告)号：US20250096319A1

公开(公告)日：2025-03-20

申请号：US18965366

申请日：2024-12-02

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Masayuki SHIBATA ,  Hiroaki YAMADA ,  Nobuhito NAKAYA ,  Yusuke ISEKI ,  Minoru SENGA ,  Takashi HAYAKAWA ,  Shogo SHIMADA ,  Tomoyuki OKUYAMA ,  Koji KATO

IPC: H01M10/0562 ,  H01B1/10 ,  H01M10/42

Abstract: A sulfide solid electrolyte may be able to adjust the morphology unavailable traditionally, or readily adjust so as to have a desired morphology. Such a sulfide solid electrolyte may include a substance including a lithium element, a sulfur element, and a phosphorus element; and an amine compound. The solid electrolyte may have a volume-based average particle diameter of 10 μm or less, measured by laser diffraction particle size distribution measurement, and/or a BET specific surface area of 40 m2/g or less.

公开(公告)号：US20230223594A1

公开(公告)日：2023-07-13

申请号：US18184707

申请日：2023-03-16

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Masayuki SHIBATA ,  Hiroaki YAMADA ,  Nobuhito NAKAYA ,  Yusuke ISEKI ,  Minoru SENGA ,  Takashi HAYAKAWA ,  Shogo SHIMADA ,  Tomoyuki OKUYAMA ,  Koji KATO

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0068

Abstract: A sulfide solid electrolyte, which is able to adjust the morphology unavailable traditionally, or is readily adjusted so as to have a desired morphology, the sulfide solid electrolyte having a volume-based average particle diameter measured by laser diffraction particle size distribution measurement of 3 μm or more and a specific surface area measured by the BET method of 20 m2/g or more; and a method of treating a sulfide solid electrolyte including the sulfide solid electrolyte being subjected to at least one mechanical treatment selected from disintegration and granulation.

公开(公告)号：US20230187688A1

公开(公告)日：2023-06-15

申请号：US17924422

申请日：2021-05-12

Applicant: IDEMITSU KOSAN CO..LTD.

Inventor： Hiroaki YAMADA ,  Yusuke lSEKl ,  Fumio YAMAKAWA ,  Masao AIDA ,  Shinji TANAKA

IPC: H01M10/0562 ,  H01M10/052 ,  C01B25/14

CPC classification number: H01M10/0562 ,  H01M10/052 ,  C01B25/14 ,  H01M2300/0068 ,  C01P2006/40 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/82

Abstract: Provided is a method of producing a solid electrolyte having high ionic conductivity using a liquid phase method, including a first step of mixing two or more compounds satisfying (1) and a complexing agent 1 satisfying (2), and a second step of further mixing in a complexing agent 2 satisfying (3) after the first step. (1) A compound containing one or more selected from a group consisting of a lithium element, a sulfur element, a phosphorus element and a halogen element. (2) A complexing agent capable of forming a complex containing Li3PS4 and a halogen element. (3) A complexing agent other than the complexing agent 1, capable of forming a complex containing Li3PS4.

公开(公告)号：US20210408581A1

公开(公告)日：2021-12-30

申请号：US17317951

申请日：2021-05-12

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Fumio YAMAKAWA ,  Masao AIDA ,  Yusuke ISEKI ,  Hiroaki YAMADA ,  Shinji TANAKA

IPC: H01M10/0562 ,  H01M10/0525

Abstract: [Problem] To provide a method for efficiently producing a sulfide solid electrolyte using a liquid-phase method.
[Solution to Problem] A method for producing a sulfide solid electrolyte not using a pulverizer in reacting raw materials, wherein a raw material that contains lithium sulfide, a phosphorus compound and a halogen compound, and a complexing agent are stirred in a reactor while a fluid that contains the contents in the reactor is discharged outside the reactor through a discharging port arranged in the reactor and the fluid that contains the discharged contents is returned back to the reactor through a returning port arranged in the reactor to thereby make the contents-containing fluid circulate therethrough.

公开(公告)号：US20210249685A1

公开(公告)日：2021-08-12

申请号：US17254543

申请日：2019-11-22

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Masayuki SHIBATA ,  Hiroaki YAMADA ,  Nobuhito NAKAYA ,  Yusuke ISEKI ,  Minoru SENGA

IPC: H01M10/0562

Abstract: A method of producing a solid electrolyte having a high ionic conductivity, which adopts a liquid-phase method and suppresses the generation of hydrogen sulfide, wherein a raw material inclusion containing a lithium element, a sulfur element, a phosphorus element, and a halogen element is mixed with a complexing agent containing a compound having at least two tertiary amino groups; and an electrolyte precursor constituted of a lithium element, a sulfur element, a phosphorus element, a halogen element, and a complexing agent containing a compound having at least two tertiary amino groups.