Patent · US Expired

Method for producing gas diffusion electrodes

US6838408B2 · kind B2 · utility

2Cited by

9References

20Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Andreas Bulan · Langenfeld, DE
Fritz Gestermann · Leverkusen, DE
Hans-Dieter Pinter · Wermelskirchen, DE
Peter Weuta · Leverkusen, DE
Walter Klesper · Bensberg, DE

Key dates

Filing date	Apr 2, 2004
Grant date	Jan 4, 2005
Priority date	—
Expiry date	Apr 2, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/53204
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for producing gas diffusion electrodes, in particular for use in electrolysis cells, as well as electrodes and their uses are described. A method of the present invention involves first, a sheet-like structure is produced by means of a pair of rolls by rolling a powder mixture containing at least one catalyst or a catalyst mixture and a binder, and then the sheet-like structure is connected to an electrically conductive catalyst support by rolling by means of a pair of rolls. In one embodiment the clamping force of the rolls is preferably kept constant in the range from 0.2 kN/cm to 15 kN/cm.

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