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...http://www.google.com.au/patents/US5308465?utm_source=gb-gplus-sharePatent US5308465 - Membrane for a gas diffusion electrode, process of manufacturing the membrane, and gas diffusion electrode provided with the membrane
