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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 11990617 B1

PDFFull Text
Date of Patent:
May. 21, 2024

Filed:

Mar. 13, 2019

Lithium metal composite oxide powder, positive electrode active substance for lithium secondary battery, positive electrode, and lithium secondary battery

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Tomoya Kuroda, Fukui, JP;

Yuichiro Imanari, Niihama, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Rimon P.C.

Primary Examiner:

Cynthia H Kelly

Assistant Examiner:

Tarik J Phillip

Int. Cl.
CPC ...
H01M 4/525 (2010.01); C01G 53/00 (2006.01); H01M 4/36 (2006.01); H01M 4/505 (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 4/364 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01); C01P 2004/03 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A lithium metal composite oxide powder including: secondary particles that are aggregates of primary particles, and single particles that are present independently of the secondary particles, wherein the lithium metal composite oxide is represented by composition formula (I), and the single particles have an average crushing strength exceeding 80 MPa:Li[Li(NiCoMnM)]O  (I)wherein M is one or more metal elements selected from the group consisting of Fe, Cu, Ti, Mg, Al, W, B, Mo, Nb, Zn, Sn, Zr, Ga, La and V, −0.1≤x≤0.2, 0≤y≤0.4, 0≤z≤0.4, and 0≤w≤0.1.

Find Patent Forward Citations

Kuroda, Tomoya. (2024). Lithium metal composite oxide powder, positive electrode active substance for lithium secondary battery, positive electrode, and lithium secondary battery (U.S. Patent No. 11990617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11990617

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

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