| 摘要 |
With known gas electrodes for fuel cells, metal/air cells etc. the gaseous reactant is transported to the reaction sites in the electrode by diffusion. These electrodes are named gas diffusion electrodes. The invention is a further development of gas electrodes with integrated gas and electrolyte chambers whereby the diffusion process is replaced by a convection process. The new gas convection electrode is furnished with means for forced transport of gas from an upstream chamber (11) through the active part of the electrode (9) to a downstream chamber (12). One or both sides of the electrode is at the same time in contact with the electrolyte in bipolar or monopolar embodiments. A selective gas permeable membrane (36) on the upstream side of the electrodes is used in one embodiment in order to separate non-desirable components present in the reaction gas. |
