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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 10910646 B1

PDFFull Text
Date of Patent:
Feb. 02, 2021

Filed:

Apr. 15, 2016

Cathode material for a lithium-ion rechargeable battery

Applicants:

Umicore, Brussels, BE;

Umicore Korea Ltd., Chungnam, KR;

Inventors:

Shinichi Kumakura, Kobe, JP;

Jing Zhang, Cheonan, KR;

Jens Paulsen, Daejeon, KR;

Assignees:

Umicore, Brussels, BE;

Umicore Korea Ltd., Chungnam, KR;

Attorney:

NK Patent Law

Primary Examiner:

Brittany L Raymond

Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/505 (2010.01); H01M 4/485 (2010.01); C01G 53/00 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); C01G 45/00 (2006.01); C01G 39/00 (2006.01); C01G 45/12 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 39/006 (2013.01); C01G 45/1221 (2013.01); C01G 53/42 (2013.01); C01G 53/44 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01); H01M 10/4242 (2013.01); C01P 2002/20 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2002/76 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode for a rechargeable battery, comprising a lithium metal oxide powder having a layered crystal structure and having the formula LiTmHmO, with 3≤x≤4.8, 0.60≤y≤2.0, 0.60≤z≤2.0, and x+y+z=6, wherein Tm is one or more transition metals of the group consisting of Mn, Fe, Co, Ni, and Cr; wherein Hm is one or more metals of the group consisting of Zr, Nb, Mo and W. The lithium metal oxide powder may comprise dopants and have the formula LiTmHmM″O— δAδ, wherein A is either one or more elements of the group consisting of F, S or N; and M″ is either one or more metal of the group consisting of Ca, Sr, Y, La, Ce and Zr, with either δ>0 or m>0, δ≤0.05, m≤0.05 and x+y+z+m=6.

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