Patents by Inventor Nobuhito NAKAYA
Nobuhito NAKAYA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240105985Abstract: 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.Type: ApplicationFiled: January 18, 2022Publication date: March 28, 2024Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Tomoyuki OKUYAMA, Nobuhito NAKAYA, Hiroto IDA, Toshifumi MIYAGAWA, Atsushi YAO
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Publication number: 20240083748Abstract: 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-?) 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).Type: ApplicationFiled: January 21, 2022Publication date: March 14, 2024Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Nobuhito NAKAYA, Hiroaki Yamada
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Publication number: 20240079648Abstract: 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.Type: ApplicationFiled: January 25, 2022Publication date: March 7, 2024Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Nobuhito NAKAYA, Yusuke ISEKI, Tomoyuki OKUYAMA, Hiroto IDA, Toshifumi MIYAGAWA, Atsushi YAO
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Patent number: 11746014Abstract: Disclosed is a method for producing a sulfide solid electrolyte including a step of processing a slurry by at least one treatment selected from drying and heating, wherein a solid electrolyte raw material containing a lithium element, a sulfur element, a phosphorus element and a halogen element, and a complexing agent are mixed in a reactor to give a complex slurry containing a complex formed of the solid electrolyte raw material and the complexing agent, and the complex slurry is transferred into an intermediate tank equipped with a cooling device and cooled therein.Type: GrantFiled: November 20, 2020Date of Patent: September 5, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yusuke Iseki, Nobuhito Nakaya
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Publication number: 20230223594Abstract: 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 ?m 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.Type: ApplicationFiled: March 16, 2023Publication date: July 13, 2023Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Masayuki SHIBATA, Hiroaki YAMADA, Nobuhito NAKAYA, Yusuke ISEKI, Minoru SENGA, Takashi HAYAKAWA, Shogo SHIMADA, Tomoyuki OKUYAMA, Koji KATO
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Patent number: 11658337Abstract: 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 ?m 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.Type: GrantFiled: November 22, 2019Date of Patent: May 23, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masayuki Shibata, Hiroaki Yamada, Nobuhito Nakaya, Yusuke Iseki, Minoru Senga, Takashi Hayakawa, Shogo Shimada, Tomoyuki Okuyama, Koji Kato
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Publication number: 20220294008Abstract: 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.Type: ApplicationFiled: September 9, 2020Publication date: September 15, 2022Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Takayoshi KAMBARA, Nobuhito NAKAYA, Hiroaki YAMADA
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Publication number: 20220041444Abstract: Disclosed is a method for producing a sulfide solid electrolyte including a step of processing a slurry by at least one treatment selected from drying and heating, wherein a solid electrolyte raw material containing a lithium element, a sulfur element, a phosphorus element and a halogen element, and a complexing agent are mixed in a reactor to give a complex slurry containing a complex formed of the solid electrolyte raw material and the complexing agent, and the complex slurry is transferred into an intermediate tank equipped with a cooling device and cooled therein.Type: ApplicationFiled: November 20, 2020Publication date: February 10, 2022Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Yusuke ISEKI, Nobuhito NAKAYA
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Publication number: 20210391596Abstract: 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.Type: ApplicationFiled: August 30, 2021Publication date: December 16, 2021Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Masayuki SHIBATA, Hiroaki YAMADA, Nobuhito NAKAYA, Yusuke ISEKI, Minoru SENGA
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Patent number: 11139505Abstract: 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.Type: GrantFiled: November 22, 2019Date of Patent: October 5, 2021Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masayuki Shibata, Hiroaki Yamada, Nobuhito Nakaya, Yusuke Iseki, Minoru Senga
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Publication number: 20210249685Abstract: 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.Type: ApplicationFiled: November 22, 2019Publication date: August 12, 2021Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Masayuki SHIBATA, Hiroaki YAMADA, Nobuhito NAKAYA, Yusuke ISEKI, Minoru SENGA
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Publication number: 20210242496Abstract: 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 ?m 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.Type: ApplicationFiled: November 22, 2019Publication date: August 5, 2021Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masayuki SHIBATA, Hiroaki YAMADA, Nobuhito NAKAYA, Yusuke ISEKI, Minoru SENGA, Takashi HAYAKAWA, Shogo SHIMADA, Tomoyuki OKUYAMA, Koji KATO