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US 7,396,794 B2Granted
Gas diffusive electrode body and method of manufacturing the same as well as electrochemical device
AssigneeSony Corporation
InventorsKoichi Tanaka, Kenji Katori, Minehisa Imazato, Kiyoshi Yamaura, Katsuya Shirai, Junji Kuyama
Life of this patent
Estimating the term…
Abstract
A gas diffusive electrode, an electrochemical device employing same, and methods of manufacturing and using same are provided. The gas diffusive electrode includes platinum powder and carbon powder or grain, to which carbon powder or grain whose particles are provided with a water-repellent film is further mixed. The gas diffusive electrode maintains an enhanced gas permeability.
Claims9
A method of producing a catalyst layer comprising the steps of:
- forming a mixture in a dispersion medium, the mixture including a catalyst, a first electrical conductive material and a second electro-conductive material having a water repellent coating;
- and
- drying the mixture.
Dependencies are inferred from the claim text.