Development of Phosphoric Acid Fuel Cells.

Abstract

In order to commercialize on-site PAFC power plants, Toshiba/IFC/ONSI group, Fuji Electric, and Mitsubishi Electric have been developing PAFC technology for many years. The years were spent tring to establish the reliability of the cells. However, every manufacturer has produced a power plant which has already exceeded 20,000 hours of cumulative operation time. Primarily discussed in this paper are an outline of cogeneration type 200kW class PAFC power plants made by Mitsubishi Electric, the determining factors of cell life, and cell technologies developed to increase reliability of the cell.