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. 26, 2024

Filed:

Feb. 26, 2020
Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Takahiro Okugawa, Niihama, JP;

Keita Murakami, Niihama, JP;

Marie Takemoto, Niihama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/00 (2006.01); C01G 53/00 (2006.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/50 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01); C01P 2002/74 (2013.01); C01P 2004/03 (2013.01); C01P 2004/51 (2013.01); C01P 2006/12 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A lithium metal composite oxide powder having a layered structure, containing at least Li, Ni, an element X, and an element M, in which the element X is one or more elements selected from the group consisting of Co, Mn, Fe, Cu, Ti, Mg, Al, W, Mo, Nb, Zn, Sn, Zr, Ga, and V, the element M is one or more elements selected from the group consisting of B, Si, S, and P, M/(Ni+X) that is a content ratio of the element M to a total amount of Ni and the element X that are contained in the lithium metal composite oxide powder is 0.01 mol % or more and 5 mol % or less, Ni/(Ni+X) that is a content ratio of Ni to the total amount of Ni and the element X that are contained in the lithium metal composite oxide powder satisfies 0.40 or more in terms of a mole ratio, and a ratio of the element M eluted into N-methyl-2-pyrrolidone measured under specific measurement conditions is 0.09 or less.


Find Patent Forward Citations

Okugawa, Takahiro. (2024). Lithium metal composite oxide powder and positive electrode active material for lithium secondary battery (U.S. Patent No. 12155070). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12155070

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