Patent · US Expired

Membrane for a gas diffusion electrode, process of manufacturing the membrane, and gas diffusion electrode provided with the membrane

US5308465A · kind A · utility

23Cited by

6References

9Claims

0Family size

Assignee

Metallgesellschaft AG · DE

Inventors

Eilhard Hillrichs · Büdingen, DE
Ulrich Sander · Rebstein, CH

Key dates

Filing date	Dec 7, 1992
Grant date	May 3, 1994
Priority date	—
Expiry date	Dec 7, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The membrane serves to cover a gas diffusion electrode on its outside surface facing a liquid electrolyte. The membrane is impermeable to gas and water-absorbent. It comprises a textile carrier layer. At least one gas-sealing layer, which contains ion exchange material and binder in a weight ratio from 10:1 to 1:2, is bonded to the textile carrier layer. In the manufacture of the membrane, an adhesive layer consisting of a binder in a solvent and subsequently at least one gas-sealing layer are applied to the textile carrier layer.

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