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：US20240006577A1

公开(公告)日：2024-01-04

申请号：US18210754

申请日：2023-06-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation

Inventor： Norihiro OSE ,  Kazuki MURAISHI ,  Hiroki YABE ,  Izuru SASAKI ,  Hiroki KAMITAKE

IPC: H01M4/04 ,  H01M10/0562

CPC classification number: H01M4/0416 ,  H01M10/0562 ,  H01M2300/0068

Abstract: An active material, a solid electrolyte, and a solvent are hard-kneaded to prepare a first electrode material. A dispersion promotion component is added to the first electrode material to prepare a second electrode material. Slurry containing the second electrode material is prepared. An electrode is produced by applying the slurry to a surface of a base material. A composite body is formed by the solid electrolyte adhering to a surface of the active material. The dispersion promotion component promotes dispersion of the solid electrolyte in the solvent.

公开(公告)号：US20240047656A1

公开(公告)日：2024-02-08

申请号：US18343878

申请日：2023-06-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation

Inventor： Kazuya HASHIMOTO ,  Hiroki YABE ,  Izuru SASAKI ,  Hiroki KAMITAKE ,  Yuta SUGIMOTO

IPC: H01M4/36 ,  H01M4/1391 ,  H01M10/0562 ,  H01M4/525

CPC classification number: H01M4/366 ,  H01M4/1391 ,  H01M10/0562 ,  H01M4/525 ,  H01M2300/0094 ,  H01M2300/0071

Abstract: An electrode includes an active material layer. The active material layer includes a composite particle and an imidazoline-based compound. The composite particle includes a core particle and a covering layer. The covering layer covers at least part of a surface of the core particle. The core particle includes an active material. The covering layer includes a first layer and a second layer. At least part of the first layer is interposed between the core particle and the second layer. The first layer includes a first solid electrolyte. The second layer includes a second solid electrolyte. The first solid electrolyte is a fluoride. The second solid electrolyte is a sulfide.

公开(公告)号：US20230238515A1

公开(公告)日：2023-07-27

申请号：US18078222

申请日：2022-12-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation

Inventor： Ryuto SAKAMOTO ,  Kenji NAGAO ,  Izuru SASAKI ,  Yusuke NISHIO ,  Hiroki KAMITAKE

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/46 ,  H01M4/62

CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/463 ,  H01M4/621 ,  H01M2004/028

Abstract: A positive electrode includes a positive electrode current collector, an adhesive layer, and a positive electrode layer. The positive electrode current collector, the adhesive layer, and the positive electrode layer are stacked in this order. The adhesive layer contains spherical carbon and fibrous carbon as an electrically conductive material, and contains an acrylic binder as an adhesive.