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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.

Patent No.:

US 12531235 B1

PDFFull Text
Date of Patent:
Jan. 20, 2026

Filed:

Apr. 11, 2022

Active material and process for producing the same

Applicant:

Mitsui Kinzoku Company, Limited, Tokyo, JP;

Inventors:

Daisuke Inoue, Ageo, JP;

Takuya Yamamoto, Ageo, JP;

Jaime W. Dumont, Lyons, CO (US);

Arrelaine A. Dameron, Boulder, CO (US);

Barbara K. Hughes, Wheat Ridge, CO (US);

Assignee:

MITSUI KINZOKU COMPANY, LIMITED, , JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Christina Chern

Assistant Examiner:

Dustin Van Kirk

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/38 (2006.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0407 (2013.01); H01M 4/0428 (2013.01); H01M 4/382 (2013.01); H01M 4/505 (2013.01); H01M 10/0562 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 10/0525 (2013.01);
Abstract

An active material includes a core portion, and a coating portion arranged on a surface of the core portion. The core portion contains elemental lithium (Li), elemental manganese (Mn), and elemental oxygen (O). The coating portion contains an element A (A is at least one selected from the group consisting of Ti, Zr, Ta, Nb, and Al) and elemental oxygen (O). W/(T×S) is more than 0 and 15% by mass/(cm/g) or less, wherein T (nm) represents an average thickness of the coating portion, S (m/g) represents a specific surface area of the active material, and W (% by mass) represents an amount of element A contained in the coating portion.

Find Patent Forward Citations

Inoue, Daisuke. (2026). Active material and process for producing the same (U.S. Patent No. 12531235). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12531235

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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