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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 11581535 B1

PDFFull Text
Date of Patent:
Feb. 14, 2023

Filed:

Dec. 03, 2019

High-nickel positive electrode active material, producing method thereof, positive electrode and lithium secondary battery comprising the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Jin Tae Hwang, Daejeon, KR;

Dong Hun Lee, Daejeon, KR;

Sung Bin Park, Daejeon, KR;

Hyung Man Cho, Daejeon, KR;

Jung Min Han, Daejeon, KR;

Wang Mo Jung, Daejeon, KR;

Assignee:

LG Energy Solution, Ltd.;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Wyatt P McConnell

Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/50 (2010.01); H01M 4/04 (2006.01); H01M 4/46 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 4/0471 (2013.01); H01M 4/463 (2013.01); H01M 4/50 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract

A method for producing a positive electrode active material, a positive electrode active material produced thereby, and a positive electrode and a lithium secondary battery including the same are provided. The method includes preparing a nickel-manganese-aluminum precursor having an atomic fraction of nickel of 90 atm % or greater in all transition metals, and mixing the nickel-manganese-aluminum precursor, a cobalt raw material, and a lithium raw material and heat treating the mixture.

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Hwang, Jin. (2023). High-nickel positive electrode active material, producing method thereof, positive electrode and lithium secondary battery comprising the same (U.S. Patent No. 11581535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11581535

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