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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 12126018 B1

PDFFull Text
Date of Patent:
Oct. 22, 2024

Filed:

Nov. 25, 2019

Positive electrode active material for rechargeable lithium battery, production method therefor and rechargeable lithum battery comprising same

Applicant:

Research Institute of Industrial Science & Technology, Pohang-si, KR;

Inventors:

Jung Hoon Song, Seoul, KR;

Sang Cheol Nam, Seoul, KR;

Kwon Young Choi, Seoul, KR;

Assignee:

RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, Pohang-si, KR;

Attorney:

LEX IP MEISTER, PLLC

Primary Examiner:

Brittany L Raymond

Int. Cl.
CPC ...
H01M 4/525 (2010.01); C01G 53/00 (2006.01); H01M 4/02 (2006.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/50 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01); C01P 2004/51 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

The present invention provides a cathode active material for a lithium secondary battery comprising secondary particles in which primary particles represented by Chemical Formula 1 below are aggregated, wherein the average particle size (D50) of the secondary particles is 2.5 μm or more and 7 μm or less, and the average value of the sphericity coefficient, which is the ratio (l/w) of the long axis length (l) to the short axis length (w) of the secondary particles, is 1.0 to 1.25.

Find Patent Forward Citations

Song, Jung. (2024). Positive electrode active material for rechargeable lithium battery, production method therefor and rechargeable lithum battery comprising same (U.S. Patent No. 12126018). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12126018

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

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