Compact Intermediate-Temperature Fuel Cells
Abstract
In Phase I, we demonstrate the feasibility of making supported electronically insulating, proton conducting inorganic thin films on metal hydride foils for intermediate temperature fuel cell electrolytes. Free standing, all inorganic composite membranes consisting of 2-20 micrometers inorganic films on 25 micrometers Pd foil have been successfully prepared and used as proton conducting membrane for intermediate fuel cell application. On the contrary, it is very difficult to prepare a mechanically strong inorganic electrolyte membrane with the same thickness using conventional methods. The fuel cell based on the supported membranes shows complete tolerance to 5% CO balanced hydrogen with considerable stability at 250 deg C. We also demonstrated that Pd coated V foils are viable candidates for replacement of Pd as the supported structure for proton conducting electrolytes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2003
- Accession Number
- ADA430657
Entities
People
- Yipeng Sun