公开(公告)号：US20230231124A1

公开(公告)日：2023-07-20

申请号：US18014684

申请日：2021-07-02

申请人： Toyota Jidosha Kabushiki Kaisha ,  Panasonic Holdings Corporation

发明人： Toru SUGIYAMA ,  Shinya SHIOTANI ,  Takeshi USAMI ,  Akinobu MIYAZAKI ,  Izuru SASAKI ,  Norihito FUJINOKI

IPC分类号： H01M4/485 ,  H01M10/052 ,  H01M10/0562 ,  H01M4/02

CPC分类号： H01M4/485 ,  H01M10/052 ,  H01M10/0562 ,  H01M2004/028

摘要： Disclosed is a positive electrode material having inhibited increase in heat release when exposed to high temperature. The positive electrode material of the disclosure comprises a positive electrode active material, a first solid electrolyte and a second solid electrolyte, wherein the positive electrode active material comprises a lithium-containing oxide, the first solid electrolyte comprises Li and X as constituent elements and comprises no S, X is one or more elements selected from the group consisting of F, Cl, Br and I, the second solid electrolyte comprises Li and S as constituent elements, the first solid electrolyte covers at least part of the surface of the positive electrode active material, the second solid electrolyte contacts with the positive electrode active material across the first solid electrolyte, and the average covering thickness of the first solid electrolyte is 104 nm or greater.

公开(公告)号：US20220367845A1

公开(公告)日：2022-11-17

申请号：US17878417

申请日：2022-08-01

申请人： Panasonic Holdings Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Izuru SASAKI ,  Norihito FUJINOKI ,  Akinobu MIYAZAKI ,  Shinya SHIOTANI ,  Toru SUGIYAMA

IPC分类号： H01M4/131 ,  H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0562

摘要： A positive electrode material of the present disclosure includes a positive electrode active material, a first solid electrolyte including a sulfide solid electrolyte, and a second solid electrolyte including a halide solid electrolyte. A proportion x of a volume of the second solid electrolyte to a sum of a volume of the first solid electrolyte and the volume of the second solid electrolyte satisfies 20≤x≤95 in percentage. The proportion x satisfies, for example, 35.2≤x≤76.5 in percentage.

公开(公告)号：US20230011871A1

公开(公告)日：2023-01-12

申请号：US17841872

申请日：2022-06-16

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Shinya SHIOTANI

IPC分类号： H01M10/0562 ,  H01M10/0565

摘要： A main object of the present disclosure is to provide an all solid state battery in which occurrence of internal short circuit is inhibited. The present disclosure achieves the object by providing an all solid state battery including, in an order along with a thickness direction, a cathode layer, a solid electrolyte layer and an anode layer; wherein at least one of the cathode layer and the solid electrolyte layer contains as inorganic solid electrolyte; the anode layer contains a polymer electrolyte; and, in a plan view along with the thickness direction of the all solid state battery, an area of the anode layer is smaller than an area of the solid electrolyte layer and an area of the cathode layer.

公开(公告)号：US20210202987A1

公开(公告)日：2021-07-01

申请号：US17120423

申请日：2020-12-14

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Jun YOSHIDA ,  Shinya SHIOTANI ,  Masaru KUBOTA ,  Yohei SHINDO ,  Takeshi USAMI

IPC分类号： H01M10/0562 ,  H01M4/48 ,  H01M10/44

摘要： A solid-state battery having a low heat generation amount and low resistance, and a method for producing the same. The solid-state battery is a solid-state battery comprising: a cathode comprising a cathode layer that contains an oxide-based cathode active material, an anode comprising an anode layer that contains an anode active material, and a solid electrolyte layer being disposed between the cathode layer and the anode layer and containing a solid electrolyte, wherein at least any one of the cathode layer and the solid electrolyte layer contains a sulfide-based solid electrolyte, and wherein the sulfide-based solid electrolyte comprises a high oxygen concentration layer on a contact surface with the oxide-based cathode active material, the high oxygen concentration layer having a higher oxygen element concentration than other parts except the contact surface.

公开(公告)号：US20230006261A1

公开(公告)日：2023-01-05

申请号：US17836254

申请日：2022-06-09

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Takamasa OHTOMO ,  Fuminori MIZUNO ,  Shinya SHIOTANI

IPC分类号： H01M10/0585 ,  H01M50/126 ,  H01M10/0565 ,  H01M50/119 ,  H01M50/121 ,  H01M50/572

摘要： To provide an all-solid-state battery that makes it possible to suppress short-circuiting due to a partially missing resin layer of a housing, in the all-solid-state battery formed of sealing an electrode structure in the housing, the housing is provided with a metal layer, the electrode structure includes an electrode stack and an outermost solid electrolyte layer, the electrode stack includes an outermost first current collector layer, the area of the outermost solid electrolyte layer is larger than the area of a flat plate part of the outermost first current collector layer in the stacking direction view, and the outermost solid electrolyte layer is stacked so as to entirely cover the flat plate part of the outermost first current collector layer.

公开(公告)号：US20230006243A1

公开(公告)日：2023-01-05

申请号：US17751892

申请日：2022-05-24

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Fuminori MIZUNO ,  Shinya SHIOTANI ,  Takamasa OHTOMO

IPC分类号： H01M10/0562 ,  H01M50/533 ,  H01M10/0585 ,  H01M4/66 ,  H01M4/46

摘要： A solid-state battery includes: a first current collector layer having a first current collector tab protruding from one side of a quadrilateral; a first active material layer laminated on the first current collector layer; a second current collector layer having a second current collector tab protruding from one side of a quadrilateral; a second active material layer laminated on the second current collector layer; and a solid electrolyte layer arranged between the first active material layer and the second active material layer and including a polymer electrolyte, wherein, in three sides other than the one side where the first current collector tab is arranged, the solid electrolyte layer is arranged so as to cover end surfaces of the first current collector layer and the first active material layer.

公开(公告)号：US20210242491A1

公开(公告)日：2021-08-05

申请号：US17049136

申请日：2019-03-01

申请人： TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Ryoji KANNO ,  Satoshi HORI ,  Shinya SHIOTANI

IPC分类号： H01M10/0562 ,  H01M10/0525

摘要： A sulfide solid electrolyte is capable of suppressing a decrease in Li ion conductivity due to moisture. A sulfide solid electrolyte includes a Li element, a P element, a S element and an O element, and having a granular shape, and including a crystal portion oriented along the granular shape, on an inner surface of the sulfide solid electrolyte.

公开(公告)号：US20230006260A1

公开(公告)日：2023-01-05

申请号：US17751868

申请日：2022-05-24

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Takamasa OHTOMO ,  Fuminori MIZUNO ,  Shinya SHIOTANI

IPC分类号： H01M10/0585 ,  H01M10/0565 ,  H01M50/531

摘要： A solid-state battery includes: a first current collector layer; a first current collector tab protruding from an edge of the first current collector layer; a first active material layer laminated on the first current collector layer; a second current collector layer; a second current collector tab protruding from an edge of the second current collector layer; a second active material layer laminated on the second current collector layer; and a solid electrolyte layer arranged between the first active material layer and the second active material layer and including a polymer electrolyte, wherein the solid electrolyte layer is arranged so as to cover end surfaces of the first current collector layer and the first active material layer, and the first current collector tab protrudes through the solid electrolyte layer.

公开(公告)号：US20240250295A1

公开(公告)日：2024-07-25

申请号：US18584012

申请日：2024-02-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Shinya SHIOTANI

IPC分类号： H01M10/0562 ,  H01M10/0565

CPC分类号： H01M10/0562 ,  H01M10/0565 ,  H01M2300/0068

摘要： A main object of the present disclosure is to provide an all solid state battery in which occurrence of internal short circuit is inhibited. The present disclosure achieves the object by providing an all solid state battery including, in an order along with a thickness direction, a cathode layer, a solid electrolyte layer and an anode layer; wherein at least one of the cathode layer and the solid electrolyte layer contains an inorganic solid electrolyte; the anode layer contains a polymer electrolyte; and, in a plan view along with the thickness direction of the all solid state battery, an area of the anode layer is smaller than an area of the solid electrolyte layer and an area of the cathode layer.

公开(公告)号：US20240234799A1

公开(公告)日：2024-07-11

申请号：US18390090

申请日：2023-12-20

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  OSAKA UNIVERSITY

发明人： Shinya SHIOTANI ,  Yu KATAYAMA

IPC分类号： H01M10/0562

CPC分类号： H01M10/0562 ,  H01M2300/0068 ,  H01M2300/0082

摘要： A composite solid electrolyte including: a polymer electrolyte containing a lithium imide salt and a polymer having an alkyl side chain that has 4 or more carbon atoms.