公开(公告)号：US20230231182A1

公开(公告)日：2023-07-20

申请号：US18176184

申请日：2023-02-28

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takaya YAMADA ,  Masahiko YAMADA ,  Shigeaki YAMAZAKI ,  Junpei TERADA ,  Kae FUJIWARA ,  Kentarou HIRAGA ,  Xianwei SUI

IPC: H01M10/056

CPC classification number: H01M10/056 ,  H01M2300/0091

Abstract: An all-solid-state secondary battery mixture, a secondary battery electrode mixture sheet containing the all-solid-state secondary battery mixture, and a secondary battery including the all-solid-state secondary battery sheet. Also provided is a method for producing an all-solid-state secondary battery sheet containing a polytetrafluoroethylene resin having a fine fiber structure. The all-solid-state secondary battery mixture includes a solid-state electrolyte and a binder. The binder is a polytetrafluoroethylene resin, and the polytetrafluoroethylene resin has a fibrous structure with a fibril diameter (median value) of 70 nm or less. In addition, the all-solid-state secondary battery mixture sheet contains the all-solid-state secondary battery mixture.

公开(公告)号：US20240421317A1

公开(公告)日：2024-12-19

申请号：US18820754

申请日：2024-08-30

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takaya YAMADA ,  Masahiko YAMADA ,  Junpei TERADA ,  Kae FUJIWARA ,  Kentarou HIRAGA ,  Xianwei SUI

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04

Abstract: The present disclosure provides a secondary battery mixture that has good properties, a secondary battery mixture sheet containing the mixture, and a secondary battery using the secondary battery mixture sheet. The secondary battery mixture contains a solid-state electrolyte and/or electrode active material, and a binder, wherein the binder is a fibrillatable resin having a fibrous structure with a fibril diameter (median value) of 100 nm or less, and is contained in the secondary battery mixture in an amount of 0.3% by mass or more and 8% by mass or less.

公开(公告)号：US20240421316A1

公开(公告)日：2024-12-19

申请号：US18819446

申请日：2024-08-29

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takaya YAMADA ,  Masahiko YAMADA ,  Junpei TERADA ,  Kae FUJIWARA ,  Kentarou HIRAGA ,  Xianwei SUI

IPC: H01M4/62 ,  H01M10/0562

Abstract: The present disclosure provides a secondary battery mixture containing an oxide-based electrolyte that has good properties, a secondary battery mixture sheet containing the mixture, and a solid-state secondary battery using the secondary battery mixture sheet. In addition, the present disclosure provides a method for producing a secondary battery mixture sheet that contains a binder having a fine fiber structure. The secondary battery mixture contains an oxide-based solid-state electrolyte and a binder, wherein the binder is a fibrillatable resin. The fibrillatable resin preferably has a fibrous structure with a fibril diameter (median value) of 100 nm or less.