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：US20240063425A1

公开(公告)日：2024-02-22

申请号：US18195439

申请日：2023-05-10

Applicant: Idemitsu Kosan Co., Ltd.

Inventor： Tomoyuki OKUYAMA

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/62 ,  C01B25/14

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M4/62 ,  C01B25/14 ,  H01M2300/008 ,  C01P2006/40

Abstract: Provided are a method for producing a crystalline sulfide solid electrolyte, the method including mixing a raw material-containing substance that contains a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom to provide a reaction product, heating the reaction product to provide a crystalline product, and subjecting the crystalline product to a grinding treatment to amorphize at least a part of a surface of the crystalline product, the grinding treatment being performed with an integrated power of 1 (Wh/kg) or more and 500 (Wh/kg) or less; a crystalline sulfide solid electrolyte; and an electrode combined material and a lithium ion battery using it.

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：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：US20230299335A1

公开(公告)日：2023-09-21

申请号：US18119924

申请日：2023-03-10

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yuma KITAMURA ,  Masayuki SHIBATA ,  Tomoyuki OKUYAMA

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/008

Abstract: Provided is a production method for a sulfide solid electrolyte capable of producing a sulfide solid electrolyte for which the production process is not complicated and which can produce a sulfide solid electrolyte having a small particle diameter (having a large specific surface) and having a small oil absorption amount, according to a production method for a sulfide solid electrolyte which includes mixing a raw material inclusion containing a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom, and a complexing agent to obtain an electrolyte precursor, removing the complexing agent from the electrolyte precursor to obtain a complex degradate, heating the complex degradate to obtain a crystalline complex degradate, and pulverizing the crystalline complex degradate by applying thereto a mechanical treatment with an integrated energy amount of 10 Wh/kg or more and less than 500 Wh/kg to obtain a pulverized product.

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.