| Title |
A Study of Power Output Characteristics for the Magnesium Metal Fuel Cell |
| DOI |
https://doi.org/10.5370/KIEEP.2014.63.3.212 |
| Keywords |
Fuel cell ; Power output ; Internal resistance ; Electrolyte ; Air electrode ; Fuel efficiency |
| Abstract |
The electric power output characteristics of magnesium fuel cell were investigated with regard to internal resistance. A equivalent circuit with the series-connected three internal resistance was introduced to analyze of the response to change of power. The power output analysis was employed in order to investigate the effect of internal resistances for the electrolyte concentration, air electrode area, Mg electrode area and distance between the electrodes. It was confirmed that internal resistance is generated by the electrolyte, air electrode and metal electrode, then those Internal resistances had a significant effect on the power output decrease. The power output was a maximum when the load resistance maches the internal resistance of the magnesium fuel cell. The fuel efficiency was only 50% at maximum power output. Higher fuel efficiency was achieved when the load resistance is greater than the internal resistance. |