公开(公告)号：US20220294008A1

公开(公告)日：2022-09-15

申请号：US17633997

申请日：2020-09-09

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takayoshi KAMBARA ,  Nobuhito NAKAYA ,  Hiroaki YAMADA

IPC: H01M10/0562 ,  C01B25/14 ,  C03C4/14 ,  C03C10/16

Abstract: The present invention provides a production method of a solid electrolyte containing a lithium element, a sulfur element, a phosphorous element, and a halogen element, wherein the solid electrolyte has a high ionic conductivity and capable of suppressing hydrogen sulfide by adopting a liquid-phase method, wherein the method includes mixing a complexing agent having an ester group and also having at least one branch with a solid electrolyte raw material. The present invention also relates to an electrolyte precursor.

公开(公告)号：US20240083748A1

公开(公告)日：2024-03-14

申请号：US18272843

申请日：2022-01-21

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Nobuhito NAKAYA ,  Hiroaki Yamada

IPC: C01B17/22 ,  H01M10/0562

CPC classification number: C01B17/22 ,  H01M10/0562 ,  C01P2002/02 ,  H01M2300/008

Abstract: An object of the present invention is to provide a method of producing a modified sulfide solid electrolyte in which ionic conductivity reduction is suppressed, and a generation amount of a hydrogen sulfide gas is reduced even if a sulfide solid electrolyte comes in contact with moisture and hydrogen sulfide is generated, and the modified sulfide solid electrolyte, and an electrode combined material and a lithium ion battery using the same. The modified sulfide solid electrolyte producing method according to the present invention includes mixing the sulfide solid electrolyte with Li2S, in which (100-α) parts by mass of the sulfide solid electrolyte is used per a parts by mass of Li2S (a represents a number of 0.3 to 15.0).

公开(公告)号：US20210242496A1

公开(公告)日：2021-08-05

申请号：US17254477

申请日：2019-11-22

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, 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：US20240105985A1

公开(公告)日：2024-03-28

申请号：US18272166

申请日：2022-01-18

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Tomoyuki OKUYAMA ,  Nobuhito NAKAYA ,  Hiroto IDA ,  Toshifumi MIYAGAWA ,  Atsushi YAO

IPC: H01M10/056 ,  H01M10/0525

CPC classification number: H01M10/056 ,  H01M10/0525 ,  H01M2300/0065

Abstract: Provided are: a modified sulfide solid electrode containing a sulfide solid electrolyte having a BET specific surface area of 10 m2/g or more and containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom, and an epoxy compound, in which the modified sulfide solid electrolyte has a peak at 2800 to 3000 cm−1 in an infrared absorption spectrum obtained by FT-IR spectroscopy (ATR method); and a method for producing the modified sulfide solid electrolyte, which has excellent coating suitability when applied as a paste and is capable of efficiently exhibiting excellent battery performance even when a sulfide solid electrolyte having a large specific surface area is used.

公开(公告)号：US20240079648A1

公开(公告)日：2024-03-07

申请号：US18271515

申请日：2022-01-25

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Nobuhito NAKAYA ,  Yusuke ISEKI ,  Tomoyuki OKUYAMA ,  Hiroto IDA ,  Toshifumi MIYAGAWA ,  Atsushi YAO

IPC: H01M10/0565

CPC classification number: H01M10/0565 ,  H01M2300/0082

Abstract: Provided are a method of manufacturing a modified sulfide solid electrolyte, which is excellent in coating suitability when applied as a paste even if a sulfide solid electrolyte has a large specific surface area, and can efficiently exhibit an excellent battery performance, the modified sulfide solid electrolyte obtained by the manufacturing method, and an electrode combined material and a lithium ion battery which exhibit an excellent battery performance. The method includes: mixing an organic halide and an organic solvent with a sulfide solid electrolyte having a BET specific surface area of 10 m2/g or more and containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom; and removing the organic solvent.

公开(公告)号：US20210391596A1

公开(公告)日：2021-12-16

申请号：US17460577

申请日：2021-08-30

Applicant: IDEMITSU KOSAN CO.,LTD.

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

IPC: H01M10/0562

Abstract: A solid electrolyte contains a thio-LISICON Region II-type crystal structure, where the solid electrolyte does not contain P2S64− structure. A solid electrolyte, where:
(1) a signal of a thio-LISICON Region II-type crystal structure is observed in the solid 31P-NMR spectrometry, and
(2) a signal of a P2S64− structure is not observed in the solid 31P-NMR spectrometry.

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：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.