THIN FUEL CELL ELECTRODES.
Abstract
Effect of gas composition changes, temperature increase, and variation of caustic concentration were determined, in turn leading to a better understanding of the composite mechanism of gas electrode operation. The collection of data on materials' properties has been continued with more work devoted to carbon powders. Three different metal backings have already been found suitable for thin electrodes. The program for factorial testing is set up and all electrodes needed for the program are manufactured; however, preliminary testing of small cells on a large scale was hampered with such troubles as faulty temperature control, poor electrolyte equilibration, and uncertain gas feed. Step-bystep, these difficulties have been eliminated bo that we are now assured of conclusive factorial testing. A technique of mounting electrodes in polyethylene eliminated earlier difficulties with cast epoxy frames and gaskets. Long-time testing of larger cells and modules is progressing satisfactorily and will be continued with more emphasis on air operation at high and low relative humidity, at freezing temperatures, with and without carbon dioxide. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1963
- Accession Number
- AD0430802
Entities
People
- K. V. Kordesch