公开(公告)号：US11923510B2

公开(公告)日：2024-03-05

申请号：US16739110

申请日：2020-01-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shuzo Tsuchida ,  Kazufumi Miyatake ,  Akihiro Horikawa

IPC: H01M10/0525 ,  H01M10/0585

CPC classification number: H01M10/0585 ,  H01M10/0525 ,  H01M2300/0094

Abstract: A solid-state battery that exhibits improved battery performance includes: a positive-electrode collector; a negative-electrode collector; a positive electrode layer formed on the positive-electrode collector and containing a positive-electrode active material and a solid electrolyte; a negative electrode layer formed on the negative-electrode collector and containing a negative-electrode active material and a solid electrolyte; and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer and containing a solid electrolyte. At least one of the solid electrolyte and the solid electrolyte partly represents a porous solid electrolyte.

公开(公告)号：US11824187B2

公开(公告)日：2023-11-21

申请号：US17745287

申请日：2022-05-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Motohiro Okochi ,  Akihiro Horikawa ,  Shuzo Tsuchida

IPC: H01M4/36 ,  H01M10/0565 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M10/0565 ,  H01M2004/027 ,  H01M2004/028

Abstract: A negative electrode active substance is used for a negative electrode layer of an all-solid battery and contains a plurality of secondary particles. The plurality of secondary particles contain impregnated particles which are secondary particles having a polymer solid electrolyte region impregnated with the polymer solid electrolyte therein and an active material region.

公开(公告)号：US20220416251A1

公开(公告)日：2022-12-29

申请号：US17719440

申请日：2022-04-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiyuki Kojima ,  Shuzo Tsuchida ,  Akihiro Horikawa

IPC: H01M4/62 ,  H01M10/0562

Abstract: A positive electrode layer is to be used in an all-solid-state battery, and includes a positive electrode current collector; a positive electrode junction layer including at least a conductive agent and disposed on the positive electrode current collector; and a positive electrode material mixture layer disposed on the positive electrode junction layer and including at least a positive electrode active material including a plurality of particles, a solid electrolyte having ion conductivity, and a plurality of conductive fibers. The plurality of conductive fibers include a conductive fiber that is positioned to connect adjacent particles of the positive electrode active material. A concentration of a binder included in the positive electrode material mixture layer is 100 ppm or less, and a concentration of a solvent included in the positive electrode material mixture layer is 50 ppm or less.

公开(公告)号：US11069903B2

公开(公告)日：2021-07-20

申请号：US15797336

申请日：2017-10-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shuzo Tsuchida ,  Ryouhei Seki ,  Yasuhiro Ueyama

IPC: H01M4/92 ,  H01M4/86 ,  B01J23/42 ,  H01M8/1039 ,  C07C309/06

Abstract: A catalyst, includes: a carbon support that possesses functional groups including a carboxyl group; and a metal that is supported onto the carbon support, wherein the proportion of the carboxyl group to the functional groups is 10% or higher. A method for producing a catalyst includes: (i) supporting metal particles onto a carbon support; (ii) bringing the carbon support into contact with an acid solution; and (iii) calcining the carbon support after Step (ii), wherein the carbon support included in the produced catalyst possesses functional groups including a carboxyl group, and the proportion of said carboxyl group to the functional groups is 10% or higher.

公开(公告)号：US12126030B2

公开(公告)日：2024-10-22

申请号：US17414100

申请日：2019-11-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shuzo Tsuchida ,  Ryouhei Seki ,  Tsutomu Kawashima

IPC: H01M4/92 ,  H01M8/1004 ,  H01M8/10

CPC classification number: H01M4/926 ,  H01M8/1004 ,  H01M2008/1095

Abstract: A fuel-cell cell capable of reducing elution of particles with a catalytic function into the electrolyte membrane is provided. A fuel-cell cell according to the present disclosure includes an electrolyte membrane, a cathode catalyst layer laminated on a first main surface side of the electrolyte membrane, a cathode gas diffusion layer laminated on the cathode catalyst layer, an anode catalyst layer laminated on a second surface side of the electrolyte membrane, and an anode gas diffusion layer laminated on the anode catalyst layer. The cathode catalyst layer includes a cathode catalyst in which catalyst particles with a catalytic function are carried on a carrier, and the cathode catalyst includes a water-repellent polymer material in at least part of a surface thereof.

公开(公告)号：US11843120B2

公开(公告)日：2023-12-12

申请号：US17402613

申请日：2021-08-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ami Okabe ,  Shuzo Tsuchida ,  Akihiro Horikawa

IPC: H01M4/66 ,  H01M4/04 ,  H01M4/36

CPC classification number: H01M4/666 ,  H01M4/043 ,  H01M4/0404 ,  H01M4/364

Abstract: An electrode includes a collector, and an active material mixture layer located on the collector and containing first particles, second particles, first active material particles, and second active material particles. The active material mixture layer includes a first mixture layer located on the collector and containing the first particles and the first active material particles, and a second mixture layer located on the first mixture layer and containing the second particles and the second active material particles. The active material mixture layer has a boundary in which the first active material particles and the second active material particles are in contact with each other in a discontinuous state at least in part, in a cross-sectional view of the electrode.