Fuel Cell Technologies Compared

There are many fuel cell technologies being developed, but ETI’s Metal Hydride Fuel Cells (MHFC) offer many

Advantages:	Disadvantages:
High Power Low Temperature Quick Start-Up	Expensive Catalysts Sensative to fuel impurities Solid Electrolyte corrosion Electrolyte management. problems

Advantages:	Disadvantages:
High efficiency Can use a variety of catalysts Suitable for CHP & CHHP Fuel flexability Solid Electrolyte Hybrid/GT cycle	High Temperature corrosion & breakdown of cell components High Temperature operation requires long start up time & limits

Advantages:	Disadvantages:
Cathode reaction faster in Alkaline electrolyte: Instant starts lead to higher performance Low cost components: Plastic meshes, Non-platinum catalysts, Carbon powders, Nickel screens and tabs Low Temp Performance Stores & Releases energy like a battery: capable for power bridging & transients	Sensative to CO2 and Sulphur in fuel and air Electrolyte Managment