LOW-COST ACID FUEL CELL STACKS.
Abstract
This project is divided into two tasks -- testing of low-temperature immobilized phosphoric acid fuel cell stacks and feasibility testing of a breadboard system starting with raw CITE fuel (or combat gasoline) and converting it to electricity using a fuel cell stack of 0.7 sq ft/cell. Over 6,300 stack test hours (up to 1250 hours/test) were accumulated at temperatures of 200, 250, and 300F on fuels containing 0.2% and 3.0% CO. The oxidant was air. Commercially available anodes contained 2, 5, 9, and 15 mg noble metal/sq cm. Anodes with 5 mg or greater loading operated satisfactory at 200F, but the 2 mg anodes required higher temperature to avoid poisoning. Cathodes of 5 and 9 mg Pt/sq cm operated similarly. The breadboard system was operated for 100 hours, proving the feasibility of the concept. The breadboard subsystem included (1) lead removal for gasoline, (2) sulfur removal, (3) low-temperature reforming and (4) operation of a fuel cell stack. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1968
- Accession Number
- AD0839143
Entities
People
- B. S. Baker
- Donald K. Fleming
- S. S. Randhava