公开(公告)号：US20200212499A1

公开(公告)日：2020-07-02

申请号：US16714604

申请日：2019-12-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIHIRO HORIKAWA ,  KAZUFUMI MIYATAKE ,  MOTOHIRO OKOCHI

IPC: H01M10/0585 ,  H01M4/13 ,  H01M4/36 ,  H01M10/0525

Abstract: An all-solid battery includes a positive-electrode layer having a positive-electrode current collector and a positive-electrode mixture layer, a negative-electrode layer having a negative-electrode current collector and a negative-electrode mixture layer, and a solid electrolyte layer. The positive-electrode mixture layer contains a positive-electrode active material and a solid electrolyte. The solid electrolyte layer is disposed between the positive-electrode mixture layer and the negative-electrode mixture layer. In the positive-electrode mixture layer, the active material volume proportion is larger and the porosity is smaller in a portion closer to the positive-electrode current collector than in a portion far from the positive-electrode current collector.

公开(公告)号：US20210351393A1

公开(公告)日：2021-11-11

申请号：US17232395

申请日：2021-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TOSHIYUKI KOJIMA ,  MOTOHIRO OKOCHI ,  SHUNICHI MATSUNO ,  AKIHIRO HORIKAWA

IPC: H01M4/04 ,  H01M10/0525 ,  B05C19/00

Abstract: A powder applying apparatus includes a transport device, a powder supplier, and a squeegee. The transport device moves a sheet in a predetermined direction. The powder supplier supplies powder on a surface of the sheet. The squeegee has a distance from the sheet, and the powder supplier adjusts the thickness of powder supplied onto the surface of the sheet. The squeegee vibrates at a frequency of 2 kHz or more and 300 kHz or less.

公开(公告)号：US20220080434A1

公开(公告)日：2022-03-17

申请号：US17396645

申请日：2021-08-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTOHIRO OKOCHI ,  AKIHIRO HORIKAWA ,  TOSHIYUKI KOJIMA

IPC: B05B7/14 ,  C08L33/08 ,  B05B17/06 ,  B05B5/025

Abstract: A powder layer composite includes a base and a powder layer having a thickness of 100 μm or less and disposed on the base. An average of a total value of a number of powder aggregates having a long diameter of 500 μm or greater and a number of pinholes having a long diameter of 500 μm or greater, in any of a plurality of different regions of 20 mm×20 mm on a surface of the powder layer, is 0.2 pieces/cm2 or less.

公开(公告)号：US20200212479A1

公开(公告)日：2020-07-02

申请号：US16714593

申请日：2019-12-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TOSHIYUKI KOJIMA ,  AKIHIRO HORIKAWA ,  MOTOHIRO OKOCHI ,  KAZUFUMI MIYATAKE

IPC: H01M10/0562 ,  H01M4/36

Abstract: An all-solid battery includes a positive-electrode layer, a negative-electrode layer, and a solid electrolyte layer. The positive-electrode layer includes a positive-electrode current collector, a positive-electrode bonding layer that contains at least a conductive agent comprising non-metal and is formed on the positive-electrode current collector, and a positive-electrode mixture layer that contains at least a positive-electrode active material and a solid electrolyte and is formed on the positive-electrode bonding layer. The negative-electrode layer includes a negative-electrode current collector and a negative-electrode mixture layer that contains at least a negative-electrode active material and the solid electrolyte. The solid electrolyte layer is disposed between the positive-electrode mixture layer and the negative-electrode mixture layer and contains the solid electrolyte. A concentration of a binder contained in the positive-electrode mixture layer is less than or equal to 100 ppm and a concentration of a solvent contained in the positive-electrode mixture layer is less than or equal to 50 ppm.

公开(公告)号：US20200212435A1

公开(公告)日：2020-07-02

申请号：US16719962

申请日：2019-12-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTOHIRO OKOCHI ,  AKIHIRO HORIKAWA ,  SHUZO TSUCHIDA

IPC: H01M4/36 ,  H01M10/0565

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.