Patent · US Active

Gas diffusion electrode and process for production thereof

US10224552B2 · kind B2 · utility

6Cited by

5References

20Claims

0Family size

Assignee

Covestro LLC · US

Inventors

Andreas Bulan · Langenfeld, DE
Jürgen Kintrup · Leverkusen, DE
Rainer Weber · Leverkusen, DE

Key dates

Filing date	Jun 15, 2011
Grant date	Mar 5, 2019
Priority date	—
Expiry date	May 28, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01M4/8652
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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 mm3/g, and a pore diameter in the range from 100 to 10,000 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.