Metal/air fuel cell, where the fuel is a metal, such as zinc, aluminum, magnesium, calcium, or others. Benefits compared to conventional batteries can be as much as 75 times greater energy density and regeneration or replacement of the fuel via convenient cartridges. However, there has been debate for some years as to whether MAFCs, which must stop generating to be refueled, unlike other types of fuel cells, really belong within the designation of fuel cell technology. Companies making MAFCs for scooters, bikes, and cellular phones are profiled in FCIR online December 2000 and April 2003. (See also ZAFC) Source : Fuel cell glossary. http://www.sanewsletters.com/FCIR/glossary1.asp |