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:
May. 05, 2020
Filed:
Jan. 04, 2016
Applicants:
Hydro-québec, Montréal, Québec, CA;
Transfert Plus, S.e.c., Montréal, Québec, CA;
Inventors:
Assignees:
TRANSFERT PLUS, S.E.C., Montreal, Quebec, CA;
HYDRO-QUEBEC, Montreal, Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/485 (2010.01); H01M 10/052 (2010.01); C25D 11/00 (2006.01); H01M 4/62 (2006.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
H01M 4/628 (2013.01); C25D 11/00 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/5825 (2013.01); H01M 4/62 (2013.01); H01M 4/622 (2013.01); H01M 10/052 (2013.01); H01M 2300/004 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0085 (2013.01);
Abstract
Described is a method or process for modifying the surface of carbon-coated electrochemically active materials such as complex oxides like olivine-type cathode materials. For instance, the surface of the carbon-coated powder material is modified to increase its hydrophobic characteristics. Also, specific groups may be grafted on the carbon surface of cathode material using the diazonium chemistry, for instance, by the spontaneous grafting of aryl ions generated in situ by the diazotization of an arylamine compound.