The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 22, 2022

Filed:

Feb. 28, 2020
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Yasuyuki Hotta, Tokyo, JP;

Shinsuke Matsuno, Tokyo, JP;

Norio Takami, Yokohama, JP;

Assignee:

KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/42 (2006.01); H01M 4/485 (2010.01); H01M 10/36 (2010.01); H01M 10/42 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/42 (2013.01); H01M 4/485 (2013.01); H01M 10/36 (2013.01); H01M 10/425 (2013.01); H01M 2004/027 (2013.01); H01M 2010/4271 (2013.01); H01M 2300/0002 (2013.01); H01M 2300/0091 (2013.01);
Abstract

An electrode comprises a current collector; and an active material-containing layer having active materials on the current collector. The active material-containing layer has a first surface contacting the current collector and a second surface which is opposite side of the first surface. At least one part of the second surface is covered by a compound containing Zn. When an image of the second surface is taken by Scanning Electron Microscope, the image is divided into 100 blocks, a ratio of existence of blocks having hexagonal platelet shaped compound containing Zn to the 100 blocks is calculated, and the ratio of existence of blocks is calculated with respect to 10 images, an average of the ratio of existence of blocks with respect to the 10 images is 20% or less (including 0).


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