Hydrogen Fuel Cells - How they make electricity

Sources- Works Cited Wright, Steve. "A Basic Overview of Fuel Cell

Technology." Collecting the History of Fuel Cells. 2008. The Smithsonian Institution. 07 Apr. 2012 <http://americanhistory.si.edu/fuelcells/basics.htm>.

Bushby, Dr. Lisa. "Hydrogen Fuel Cells." Energy of the Future. 22 Aug. 2006. 08 Apr. 2012 <http://environmentalchemistry.com/yogi/environmental/200608hydrogenfuelcells.html>.

Background Information Scientific Definitions: - 2 electrodes: anode(+) & cathode (-) - Electrolyte (carries charges) - Catalyst (speeds reaction) Fuel Cell Basics - needs a fuel to work - needs many cells

What is a Fuel Cell? Chemical reaction

generates voltage Unlike battery- no

recharge chemical reaction =

electrons flow→circuit; supply load with energy

How does it work? Hydrogen enters and

loses electron at anode

Proton →electrolyte, electron →circuit

O2 enters at cathode, O2 + p+ + e- = H2O

How does it Work?-Continued Only emission =(H2O) water vapour

Graph

Thank you!