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：US20230207869A1

公开(公告)日：2023-06-29

申请号：US18088108

申请日：2022-12-23

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Katsuhito KONDO ,  Atsushi SATO

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/008

Abstract: A method of producing a sulfide solid electrolyte and a method of producing an electrode mixture are described. The method of producing the sulfide solid electrolyte includes a step of mixing a raw material inclusion containing a lithium atom, a phosphorous atom, a sulfur atom, and a halogen atom with at least one lithium oxoacid salt of lithium nitrate, lithium nitrite, lithium silicate, lithium borate, and lithium carbonate. The sulfide solid electrolyte has high ion conductivity and excellent reactivity with an electrode active material, especially a positive electrode active material.

公开(公告)号：US20230378525A1

公开(公告)日：2023-11-23

申请号：US18030286

申请日：2021-10-08

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kota TERAI ,  Katsuhito KONDO ,  Takeshi MAKINO ,  Atsushi SATO ,  Hiroyuki HIGUCHI

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0068

Abstract: An object of the present invention is to provide sulfide solid electrolyte glass ceramics that have a high ionic conductivity and an enhanced water resistance, and is also to provide a method of producing the sulfide solid electrolyte glass ceramics. Sulfide solid electrolyte glass ceramics that have peaks at 20.2° and 23.6° in an X-ray diffractometry (XRD) using the CuKα line, a crystallite diameter of 30 nm or more, and a P2S64− phosphorus proportion obtained by a solid 31P-NMR spectroscopy of 4.5% by mol or less, and a method of producing the sulfide solid electrolyte glass ceramics are provided.

公开(公告)号：US20230335788A1

公开(公告)日：2023-10-19

申请号：US18123384

申请日：2023-03-20

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Kenji MORIYAMA ,  Shinji TANAKA ,  Katsuhito KONDO ,  Hironari KIMPARA ,  Atsushi YAO

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M2300/0068

Abstract: Provided are a method for producing an atomization sulfide solid electrolyte, including atomizing a raw material sulfide solid electrolyte together with a specific ketone compound, the raw material sulfide solid electrolyte containing a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom; an atomization sulfide solid electrolyte; an electrode mixture containing the atomization sulfide solid electrolyte and an electrode active material; and a lithium ion battery containing at least one of the atomization sulfide solid electrolyte and the electrode mixture.