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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 10454108 B1

PDFFull Text
Date of Patent:
Oct. 22, 2019

Filed:

May. 20, 2016

Bivalent metal doping for sodium manganese oxide as cathode materials for sodium ion batteries

Applicants:

Umicore, Brussels, BE;

Tokyo University of Science Foundation, Tokyo, JP;

Inventors:

Shinichi Kumakura, Kobe, JP;

Shinichi Komaba, Tokyo, JP;

Kei Kubota, Tokyo, JP;

Yoshiyuki Tahara, Tokyo, JP;

Assignees:

UMICORE, Brussels, BE;

TOKYO UNIVERSITY OF SCIENCE FOUNDATION, Tokyo, JP;

Attorney:

NK Patent Law

Primary Examiner:

Haidung D Nguyen

Int. Cl.
CPC ...
H01B 1/06 (2006.01); H01M 4/525 (2010.01); H01M 4/505 (2010.01); C01G 45/12 (2006.01); C01G 53/00 (2006.01); H01M 10/054 (2010.01); H01M 10/058 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 45/1228 (2013.01); C01G 53/50 (2013.01); H01M 4/525 (2013.01); H01M 10/054 (2013.01); H01M 10/058 (2013.01); C01P 2002/72 (2013.01); C01P 2002/76 (2013.01); C01P 2004/60 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract

A sodium transition metal based cathode material for a rechargeable sodium battery, having a P2 orthorhombic layered bronze crystal structure with space group Cmcm, and having a composition NaMMnLiAOwith 0.60<x<0.95, wherein M consists of either one or more elements of the group consisting of Cu, Zn and Ni; A consisting of either one or more elements of the group consisting of Mg, Ti, Fe, Cr and Co, with 0<y<0.20, 0≤z<0.2, 0≤y'<0.33, and z+y′>0.

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