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:
Mar. 05, 2019
Filed:
Jun. 15, 2011
Applicants:
Andreas Bulan, Langenfeld, DE;
Jürgen Kintrup, Leverkusen, DE;
Rainer Weber, Odenthal, DE;
Inventors:
Assignee:
Covestro AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 8/02 (2016.01); H01M 8/08 (2016.01); H01M 12/06 (2006.01); H01M 4/92 (2006.01); C25B 11/03 (2006.01); C25B 1/46 (2006.01);
U.S. Cl.
CPC ...
H01M 4/92 (2013.01); C25B 1/46 (2013.01); C25B 11/035 (2013.01); H01M 4/8605 (2013.01); H01M 4/8652 (2013.01);
Abstract
The present invention relates to a gas diffusion electrode that includes an electrically conductive carrier, and a porous coating based on an electrochemically active catalyst and a hydrophobic material, wherein the electrode has a first side facing an oxygen-containing gas and a second side facing an alkaline electrolyte, wherein the catalyst comprises a noble metal as a catalytically active component, wherein the hydrophobic material comprises a hydrophobic polymer, and wherein the coating comprising the catalyst has a pore volume from 10 to 500 mm/g, and a pore diameter in the range from 100 to 10,000 nm.