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：US20210367266A1

公开(公告)日：2021-11-25

申请号：US17260379

申请日：2019-07-16

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takayoshi KAMBARA ,  Minoru SENGA ,  Hiroyuki TAMURA

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

Abstract: Provided is a method for producing a solid electrolyte having peaks at 2θ=20.2°±0.5° and 23.6°±0.5° in X-ray diffractometry using a CuKα ray and containing a lithium element, a phosphorus element, a sulfur element, and a halogen element, the method including using raw materials containing yellow phosphorus and a compound containing a lithium element, a sulfur element, and a halogen element.

公开(公告)号：US20250079507A1

公开(公告)日：2025-03-06

申请号：US18726457

申请日：2022-12-01

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takayoshi KAMBARA

IPC: H01M10/0562

Abstract: Provided is a method for producing sulfide solid electrolyte having an argyrodite-type crystal structure, the method including mixing lithium sulfide, a phosphorus sulfide, and an ammonium halide to produce a solid electrolyte precursor, and firing the solid electrolyte precursor. The method for producing a sulfide solid electrolyte having an argyrodite-type crystal structure provides a method for easily producing a high-quality sulfide solid electrolyte without using an elemental halogen which complicates the handling or a lithium halide which has a considerably high hygroscopicity.

公开(公告)号：US20240283008A1

公开(公告)日：2024-08-22

申请号：US18289774

申请日：2022-05-10

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takayoshi KAMBARA ,  Atsushi SATO

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0068

Abstract: Provided are a sulfide solid electrolyte composition containing a sulfide solid electrolyte and red phosphorus, having an excellent flame retardancy and a high ionic conductivity and further having excellent hydrogen sulfide generation suppressing performance; an electrode mixture containing the composition; and a method for producing a sulfide solid electrolyte composition including mixing a sulfide solid electrolyte and red phosphorus.

公开(公告)号：US20240083761A1

公开(公告)日：2024-03-14

申请号：US18272857

申请日：2022-01-17

Applicant: IDEMITSU KOSAN CO.,LTD

Inventor： Takayoshi KAMBARA ,  Hiroaki YAMADA

IPC: C01D15/04 ,  C01B17/45 ,  H01M10/0562

CPC classification number: C01D15/04 ,  C01B17/45 ,  H01M10/0562 ,  C01P2002/50 ,  C01P2002/72 ,  C01P2006/40 ,  H01M2300/008

Abstract: The present invention relates to a method for producing a lithium halide compound, including performing a mixing heat treatment step of mixing lithium sulfide and an ammonium halide under a heating condition of 90 to 250° C., and which does not involve a step of directly removing water, does not use a simple substance halogen which is complicated to handle, can easily remove by-products, and does not require excessive energy for production.

公开(公告)号：US20230021458A1

公开(公告)日：2023-01-26

申请号：US17787964

申请日：2020-12-21

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Mitsuru SHIBATA ,  Takayoshi KAMBARA ,  Masayuki SHIBATA

IPC: H01M10/0564 ,  C07F9/6533 ,  C07F9/6509

Abstract: According to a method for producing a solid electrolyte that contains a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom, including mixing a complexing agent and a solid electrolyte raw material, a solid electrolyte having a high ionic conductivity is provided using a liquid-phase method.

公开(公告)号：US20210005924A1

公开(公告)日：2021-01-07

申请号：US16976976

申请日：2019-03-01

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Takayoshi KAMBARA ,  Minoru SENGA ,  Katsuhito KONDO ,  Naoya MASUDA ,  Hironari KIMPARA ,  Futoshi UTSUNO ,  Hiroyuki TAMURA

IPC: H01M10/0562 ,  C01B25/14

Abstract: A method for producing a sulfide solid electrolyte having an argyrodite-type crystal structure may involve: mixing a raw material containing elemental phosphorus at an integrated power of 0.5 kWh/kg or more, and heat-treating a precursor obtained in the mixing at 350 to 500° C.

公开(公告)号：US20170222261A1

公开(公告)日：2017-08-03

申请号：US15492564

申请日：2017-04-20

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Takayoshi KAMBARA ,  Hiroyuki HIGUCHI ,  Hiroyuki TAMURA ,  Masaru NAKAGAWA ,  Tadanori JUNKE

IPC: H01M10/0562 ,  H01M4/131 ,  H01M4/485 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  C03C3/321 ,  C03C3/323 ,  C03C4/14 ,  C03C10/0072 ,  H01B1/122 ,  H01M4/131 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0068 ,  H01M2300/008 ,  Y02P70/54 ,  Y02T10/7011

Abstract: A solid electrolyte glass at least including: at least one alkali metal element; a phosphorus (P) element; a sulfur (S) element; and one or more halogen elements selected from I, Cl, Br and F; wherein the solid electrolyte glass has two exothermic peaks that are separated from each other in a temperature range of 150° C. to 350° C. as determined by differential scanning calorimetry (in a dry nitrogen atmosphere at a temperature-elevating speed of 10° C./min from 20 to 600° C.).

公开(公告)号：US20250100879A1

公开(公告)日：2025-03-27

申请号：US18725795

申请日：2022-12-23

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takayoshi KAMBARA

IPC: C01B17/20 ,  H01M10/0562

Abstract: Provided is a method for producing a sulfide solid electrolyte having an argyrodite-type crystal structure in a liquid phase, the method having a production efficiency enhanced by efficiently using a raw material-containing substance and enabling easy production of a high-quality sulfide solid electrolyte, the method including mixing a raw material-containing substance and a first solvent to prepare a mixture, mixing the mixture and a second solvent to prepare a solution containing a solid electrolyte precursor, subjecting the solid electrolyte precursor to a heat treatment while supplying hydrogen sulfide to produce a heated solid electrolyte precursor, and firing the heated solid electrolyte precursor.

公开(公告)号：US20170194662A1

公开(公告)日：2017-07-06

申请号：US15442800

申请日：2017-02-27

Applicant: IDEMITSU KOSAN CO., LTD

Inventor： Takayoshi KAMBARA ,  Tadanori JUNKE ,  Ryo ABURATANI ,  Hiroyuki HIGUCHI ,  Masaru NAKAGAWA ,  Tsuyoshi OTA ,  Yoshikatsu Seino

IPC: H01M10/0562 ,  C03C10/16 ,  H01B1/12 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  C03C10/16 ,  C03C2205/00 ,  H01B1/122 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054 ,  H01M2300/0068 ,  H01M2300/008

Abstract: A solid electrolyte including an alkali metal element, phosphorous, sulfur and halogen as constituent components.