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:
Jun. 30, 2026

Filed:

Jul. 12, 2022
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventor:

Shugo Daikuhara, Nisshin, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 4/04 (2006.01);
U.S. Cl.
CPC ...
H01M 4/0407 (2013.01); H01M 10/0525 (2013.01);
Abstract

An active material powder that includes a foreign particle and an active material particle is prepared. A first electrode material that includes the active material powder is prepared. Dry classification treatment is performed on the first electrode material, and thereby the foreign particle included in the first electrode material is decreased. An active material layer that includes the first electrode material after the dry classification treatment is formed. The first electrode material is in powder form. The foreign particle includes a metal foreign object and is a coarse particle.


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