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. 14, 2021
Filed:
Jan. 08, 2016
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventor:
Anusorn Kongkanand, Rochester Hills, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/90 (2006.01); H01M 4/92 (2006.01);
U.S. Cl.
CPC ...
H01M 4/9016 (2013.01); H01M 4/9058 (2013.01); H01M 4/921 (2013.01); H01M 2250/20 (2013.01); Y02T 90/40 (2013.01);
Abstract
A method for forming a caged electrocatalyst particles for fuel cell applications include a step of forming modified particles having a porous SiOshell on a surface of platinum-containing particles. The modified particles are subjected to acid treatment or electrochemical oxidation to remove a portion of the platinum-containing particle thereby creating caged electrocatalyst particles having a gap between the platinum-containing particles and their SiOshell.