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.:
Date of Patent:
Sep. 17, 2024
Filed:
Mar. 04, 2020
Applicant:
Uchicago Argonne, Llc, Chicago, IL (US);
Inventors:
Tongchao Liu, Westmont, IL (US);
Khalil Amine, Oakbrook, IL (US);
Assignee:
UCHICAGO ARGONNE, LLC, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/505 (2010.01); C01G 53/00 (2006.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 53/50 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 4/62 (2013.01); C01P 2002/20 (2013.01); C01P 2002/32 (2013.01); C01P 2002/52 (2013.01); C01P 2004/32 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract
A cathode active material includes a composition expressed as:Li(NiMnCo)(NiMnCo)O; orNa(NiMnCo)(NiMnCo)O;where: M1 represents a core composition comprising of Ni, Mn, and/or Co or a combination of at two of thereof; M2 represents a surface composition having at least 50% Co, and, optionally Ni and/or Mn; the structure of M2 may be a composite structure and includes a rock-salt or disordered rock-salt phase; 0.5≤α<1, 0≤x≤1, 0≤y≤0.5, 0≤z≤1, 0≤x'≤0.5, 0≤y′≤0.5, 0.5≤z′≤1, and −0.1≤β≤0.1; the sum of x, y and z is 0.9-1.1, and the sum of x′, y′ and z′ is 0.9-1.1.