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：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：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.

公开(公告)号：US20230231136A1

公开(公告)日：2023-07-20

申请号：US17979092

申请日：2022-11-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation

Inventor： Akio MITSUI ,  Yasunari SUGITA ,  Yasutaka TSUTSUI

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0562

CPC classification number: H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M2220/20 ,  H01M2300/0068

Abstract: An electrode layer for an all-solid state battery contains an electrode active material, a sulfide solid electrolyte, and a residual liquid, where the residual liquid has a δP of less than 2.9 MPa½ in a Hansen solubility parameter and a boiling point of 190° C. or higher.

公开(公告)号：US20220336850A1

公开(公告)日：2022-10-20

申请号：US17659114

申请日：2022-04-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation

Inventor： Yuhi YAMANO ,  Kunimitsu YAMAMOTO ,  Yuki ARAI ,  Takamasa OHTOMO ,  Yasunari SUGITA ,  Tatsuya OSHIMA

IPC: H01M10/0562 ,  H01M10/42 ,  H01M4/134

Abstract: A main object of the present disclosure is to provide a battery superior in safety against heating. The present disclosure achieves the object by providing a battery comprising cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector, in this order along a thickness direction, and the anode current collector includes a coating layer including an oxide active material, on a surface of the anode active material layer side, the solid electrolyte layer includes a first solid electrolyte layer, and a second solid electrolyte layer placed between the first solid electrolyte layer and the anode active material layer, the first solid electrolyte layer includes a halide solid electrolyte, and the second solid electrolyte layer includes a sulfide solid electrolyte.