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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 11961995 B1

PDFFull Text
Date of Patent:
Apr. 16, 2024

Filed:

Mar. 27, 2019

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

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Jun-ichi Kageura, Niihama, JP;

Daisuke Nagao, Niihama, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Rimon P.C.

Primary Examiner:

Eli S Mekhlin

Int. Cl.
CPC ...
H01M 4/134 (2010.01); C01G 53/00 (2006.01); H01M 4/02 (2006.01); H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); C01P 2002/74 (2013.01); H01M 2004/028 (2013.01);
Abstract

A lithium metal composite oxide powder, which comprises primary particles and secondary particles that are aggregates of the primary particles, and has an α-NaFeOtype crystal structure, wherein a half width (A) of a diffraction peak in a range of 2θ=18.7±1° in a powder X-ray diffraction measurement for the lithium metal composite oxide powder using CuKα ray is 0.135° or more and 0.165° or less, and a c-axis lattice constant of the α-NaFeOtype crystal structure is 14.178 Å or more and 14.235 Å or less.

Find Patent Forward Citations

Kageura, Jun-ichi. (2024). Lithium metal composite oxide powder, positive electrode active substance for lithium secondary battery, positive electrode for lithium secondary battery, and lithium secondary battery (U.S. Patent No. 11961995). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11961995

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

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