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:
Jan. 14, 2025
Filed:
Oct. 25, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Andrew T. Haug, Woodbury, MN (US);
John E. Abulu, Woodbury, MN (US);
Matthew J. Lindell, Woodbury, MN (US);
Tyler S. Matthews, Apple Valley, MN (US);
Andrew J. L. Steinbach, Shoreview, MN (US);
Fuxia Sun, Woodbury, MN (US);
Michael A. Yandrasits, Hastings, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Described herein is a coating composition comprising: (a) a metal catalyst, wherein the metal catalyst comprises at least one of platinum, ruthenium, iridium, and alloys and combinations thereof; (b) an at least highly fluorinated ionomer comprising a polymer backbone and a plurality of first side chains pendant therefrom, wherein the first side chain comprises at least one protogenic group, wherein the protogenic group is selected from a sulfonic acid, a bis(sulfonyl)imide, a sulfonamide, a sulfonyl methide, and salts and combinations thereof, and wherein the polymer backbone comprises an average of at least 14 carbon atoms between adjacent first side chains along the polymer backbone; and (c) a solvent. Such coating compositions may be used to make electrodes for electrochemical cells and have been shown to have reduced poisoning of the catalyst.