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.

Date of Patent:
Oct. 17, 2017

Filed:

Mar. 07, 2013
Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Shrikant N. Khot, Midland, MI (US);

Deidre A. Strand, San Diego, CA (US);

Jamie L. Cohen, Midland, MI (US);

Thierry Drezen, Cugy, CH;

Steven S. Kaye, San Diego, CA (US);

Bin Li, San Diego, CA (US);

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); C01G 45/12 (2006.01); C01B 25/45 (2006.01); H01M 4/587 (2010.01); H01M 10/052 (2010.01); H01M 10/0568 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01B 25/45 (2013.01); C01G 45/1235 (2013.01); H01M 4/587 (2013.01); H01M 4/5825 (2013.01); H01M 4/625 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); C01P 2002/50 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C01P 2006/32 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0025 (2013.01); Y02E 60/122 (2013.01); Y02P 70/54 (2015.11); Y02T 10/7011 (2013.01);
Abstract

Particulate LMFP cathode materials having high manganese contents and small amounts of dopant metals are disclosed. These cathode materials are made by milling a mixture of precursor materials in a wet or dry milling process. Preferably, off-stoichiometric amounts of starting materials are used to make the cathode materials. Unlike other high manganese LMFP materials, these cathode materials provide high specific capacities, very good cycle life and high energies even at high discharge rates.


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