公开(公告)号：US20220311049A1

公开(公告)日：2022-09-29

申请号：US17840996

申请日：2022-06-15

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Naoya MASUDA ,  Junpei MARUYAMA ,  Hironari KIMPARA ,  Shota TOTSUKA ,  Atsushi YAO

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A method for producing a solid electrolyte having an argyrodite-type crystal structure, the method comprising:
heat-treating a raw material mixture comprising lithium, sulfur, phosphorus and halogen in a solvent using a pressure-resistant container or under refluxing;
removing the solvent; and
firing a treated product obtained by the heat treatment.

公开(公告)号：US20230178794A1

公开(公告)日：2023-06-08

申请号：US17927451

申请日：2021-02-17

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Naoya MASUDA ,  Futoshi UTSUNO ,  Hiroyuki HIGUCHI

IPC: H01M10/0562 ,  H01M4/485

CPC classification number: H01M10/0562 ,  H01M4/485 ,  H01M2004/021

Abstract: To provide an electrode composite material that is excellent in conductivity through the excellent contact state of a solid electrolyte and an electrode active material, and is capable of exhibiting a high battery capability, containing the sulfide solid electrolyte and the electrode active material, having an electron conductivity parameter X represented by the prescribed expression satisfying 0.30≤X≤2.10.

公开(公告)号：US20220255062A1

公开(公告)日：2022-08-11

申请号：US17631927

申请日：2020-07-30

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Naoya MASUDA ,  Futoshi UTSUNO

IPC: H01M4/36 ,  H01M4/58 ,  H01M4/505

Abstract: To provide an electrode composite material capable of exhibiting a high battery capability, containing a particular crystalline sulfide solid electrolyte and an electrode active material, and a method for producing an electrode composite material, including; firstly mixing a raw material inclusion containing at least one kind of a lithium element, a sulfur element, and a phosphorus element, with a complexing agent, so as to form an electrolyte precursor; heating to decomplex the electrolyte precursor; and secondly mixing a decomplexed material obtained through the decomplexing, with an electrode active material.

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：US20220344703A1

公开(公告)日：2022-10-27

申请号：US17641167

申请日：2020-09-18

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Hironari KIMPARA ,  Shota TOTSUKA ,  Atsushi SATO ,  Naoya MASUDA ,  Atsushi YAO

IPC: H01M10/0562

Abstract: A method of production of a solid electrolyte having an Argyrodite-type crystal structure, including steps of mixing raw materials such that lithium (Li), phosphorus (P), sulfur (S), oxygen (O), and halogen (X) satisfy the following formulas (11) to (14) to obtain a mixture; and heating the mixture: 4.8≤Li/P≤5.3  (11) 3.8≤S/P≤4.4  (12) 0

公开(公告)号：US20200185767A1

公开(公告)日：2020-06-11

申请号：US16702654

申请日：2019-12-04

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Naoya MASUDA ,  Junpei Maruyama ,  Hironari Kimpara ,  Shota Totsuka ,  Atsushi Yao

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A method for producing a solid electrolyte having an argyrodite-type crystal structure, the method comprising: heat-treating a raw material mixture comprising lithium, sulfur, phosphorus and halogen in a solvent using a pressure-resistant container or under refluxing; removing the solvent; and firing a treated product obtained by the heat treatment.

公开(公告)号：US20180358653A1

公开(公告)日：2018-12-13

申请号：US16000265

申请日：2018-06-05

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Junpei MARUYAMA ,  Masao AIDA ,  Shota TOTSUKA ,  Naoya MASUDA

IPC: H01M10/0562 ,  H01M10/0525

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

Abstract: A method for producing a solid electrolyte comprises heat-treating a raw material comprising lithium, sulfur, and phosphorus as constituent elements in a flowing state, thereby manufacturing a sulfide solid electrolyte comprising an argyrodite type crystal structure.