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. 05, 2017
Filed:
Mar. 06, 2014
Applicant:
Johnson Matthey Public Limited Company, London, GB;
Inventors:
Assignee:
JOHNSON MATTHEY PUBLIC LIMITED COMPANY, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 4/136 (2010.01); H01M 4/1397 (2010.01); H01M 4/133 (2010.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/0471 (2013.01); H01M 4/0428 (2013.01); H01M 4/133 (2013.01); H01M 4/136 (2013.01); H01M 4/1397 (2013.01); H01M 4/366 (2013.01); H01M 4/587 (2013.01); H01M 4/5825 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01);
Abstract
An alkali metal oxyanion cathode material comprising particles, where the particles carry, on at least a portion of the particle surface, carbon deposit by pyrolysis is described. The particles have the general formula A:M:M':XO4 where the average valency of M is +2 or greater; A is at least one alkali metal selected from Li, Na and K; M is at least Fe and/or Mn; and M′ is a metal of valency of 2+ or more.