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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 11258064 B1

PDFFull Text
Date of Patent:
Feb. 22, 2022

Filed:

Jul. 27, 2020

Cathode active material, method for manufacturing same, and lithium secondary battery comprising same

Applicant:

Iucf-hyu (Industry-university Cooperation Foundation Hanyang University), Seoul, KR;

Inventors:

Yang-Kook Sun, Seoul, KR;

Un Hyuck Kim, Gunpo-si, KR;

Assignee:

IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY), Seoul, KR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Katie L Hammer

Int. Cl.
CPC ...
H01M 4/525 (2010.01); C04B 41/85 (2006.01); H01M 4/505 (2010.01); C01G 53/04 (2006.01); C09D 1/00 (2006.01); H01M 4/36 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/485 (2010.01); C01G 53/00 (2006.01); H01M 4/58 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/04 (2013.01); C01G 53/42 (2013.01); C04B 41/85 (2013.01); C09D 1/00 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/36 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/582 (2013.01); C01P 2002/54 (2013.01); C01P 2002/72 (2013.01); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/80 (2013.01); C01P 2006/40 (2013.01); C04B 2235/3203 (2013.01); C04B 2235/3279 (2013.01); C04B 2235/75 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01); Y02E 60/10 (2013.01);
Abstract

A method for manufacturing a positive active material is provided. The method includes forming a positive active material precursor including nickel, mixing and firing the positive active material precursor and lithium salt to form a preliminary positive active material particle, forming a coating material including fluorine on the preliminary positive active material particle by dry-mixing the preliminary positive active material particle with a coating source including fluorine, and manufacturing a positive active material particle by thermally treating the preliminary positive active material particle on which the coating material is formed.

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