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:
Apr. 04, 2023

Filed:

Jun. 10, 2020
Applicants:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

National University Corporation Okayama University, Okayama, JP;

Inventors:

Daisuke Horikawa, Toyota, JP;

Yuji Yamamoto, Toyota, JP;

Takashi Teranishi, Okayama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/48 (2010.01); H01M 4/131 (2010.01); H01M 4/485 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/131 (2013.01); H01M 4/483 (2013.01); H01M 4/485 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode material which is used in a positive electrode of a lithium ion secondary battery disclosed here includes a positive electrode active material including a compound capable of storing and releasing lithium ions, a first coating material disposed on at least a part of the surface of the positive electrode active material, and a second coating material disposed on at least a part of the surface of the positive electrode active material. The positive electrode material is characterized in that the first coating material contains a nickel oxide having a rock salt structure, and the second coating material contains a titanium oxide.


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