公开(公告)号：US20230207777A1

公开(公告)日：2023-06-29

申请号：US17963240

申请日：2022-10-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  PANASONIC HOLDINGS CORPORATION

Inventor： Akio MITSUI ,  Aiko NAGANO ,  Yasunari SUGITA ,  Takaaki TAMURA ,  Yasutaka TSUTSUI

IPC: H01M4/131 ,  H01M10/0585 ,  H01M4/485 ,  H01M4/62 ,  H01M4/1391 ,  H01M10/0562

CPC classification number: H01M4/131 ,  H01M10/0585 ,  H01M4/485 ,  H01M4/622 ,  H01M4/1391 ,  H01M10/0562 ,  H01M2004/027

Abstract: A negative electrode layer that is used for an all-solid-state battery includes: lithium titanate; a sulfide solid electrolyte; and a rubber binder. The ratio of the amount A of the rubber binder adsorbed on the lithium titanate to the total content B of the rubber binder in the negative electrode layer is 1.35% or less.

公开(公告)号：US20230231122A1

公开(公告)日：2023-07-20

申请号：US17976456

申请日：2022-10-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akio MITSUI ,  Yasunari SUGITA ,  Kenji NAGAO ,  Izuru SASAKI ,  Yasutaka TSUTSUI ,  Takaaki TAMURA ,  Hiroki KAMITAKE

IPC: H01M4/485 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0562

CPC classification number: H01M4/485 ,  H01M4/48 ,  H01M4/386 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0562 ,  H01M10/0525

Abstract: There is provided an electrode layer for an all-solid state battery, which contains an electrode active material and a sulfide solid electrolyte, where the sulfide solid electrolyte has an average particle diameter of less than 1 µm and the electrode layer contains an imidazoline-based dispersion material.

公开(公告)号：US20230395772A1

公开(公告)日：2023-12-07

申请号：US18325350

申请日：2023-05-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation

Inventor： Yasutaka TSUTSUI ,  Takaaki TAMURA

IPC: H01M4/04

CPC classification number: H01M4/0404 ,  H01M4/0409 ,  H01M4/0435

Abstract: A method of producing a slurry composition includes the following (a) to (c): (a) forming a binder solution by mixing a binder with a solvent; (b) filtering the binder solution to form a filtrate; and (c) producing a slurry composition by mixing the filtrate with a solid electrolyte.

公开(公告)号：US20230253558A1

公开(公告)日：2023-08-10

申请号：US18163924

申请日：2023-02-03

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation ,  UBE Corporation

Inventor： Akio MITSUI ,  Yasunari SUGITA ,  Takaaki TAMURA ,  Shinichirou OOTANI

IPC: H01M4/485 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/0585

CPC classification number: H01M4/485 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/0585 ,  H01M2004/027

Abstract: There is provided a negative electrode layer that is used in an all-solid state battery, containing lithium titanate and a sulfide solid electrolyte, in which a moisture amount contained in the lithium titanate is 25 ppm or more and 547 ppm or less.