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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 10818916 B1

PDFFull Text
Date of Patent:
Oct. 27, 2020

Filed:

Nov. 30, 2016

Positive electrode active material for secondary battery and secondary battery including the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Ju Kyung Shin, Daejeon, KR;

Wang Mo Jung, Daejeon, KR;

Byung Chun Park, Daejeon, KR;

Ji Hoon Ryu, Daejeon, KR;

Sang Min Park, Daejeon, KR;

Sang Wook Lee, Daejeon, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); C01G 53/00 (2006.01); H01M 10/052 (2010.01); H01M 4/1391 (2010.01); H01M 4/04 (2006.01); H01M 2/10 (2006.01); H01M 4/131 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01G 53/006 (2013.01); C01G 53/50 (2013.01); H01M 2/10 (2013.01); H01M 4/0471 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); C01P 2004/03 (2013.01); C01P 2004/61 (2013.01); C01P 2004/86 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided are a positive electrode active material for a secondary battery which may exhibit excellent capacity and life characteristics when used in the battery by including a core, and a surface treatment layer disposed on a surface of the core, wherein the core is a secondary particle including a plurality of primary particles, the primary particles include a polycrystalline lithium composite metal oxide of Formula 1 having an average grain diameter of 50 nm to 200 nm, and the surface treatment layer includes a lithium oxide including lithium and at least one metal selected from the group consisting of boron (B), tungsten (W), hafnium (Hf), niobium (Nb), tantalum (Ta), molybdenum (Mo), silicon (Si), tin (Sn), and zirconium (Zr), and a secondary battery including the same,LiNiCoM1M3M2O  [Formula 1] (in Formula 1, M1, M2, M3, a, x, y, z, and w are the same as those defined in the specification).

Find Patent Forward Citations

Shin, Ju. (2020). Positive electrode active material for secondary battery and secondary battery including the same (U.S. Patent No. 10818916). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10818916

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

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