| 英文摘要 |
This study aims to construct a battery that will generate electricity by using a small-scale Mg/Cu galvanic cell. Changes in voltage and current with time were examined. The number of cells needed to light up 3 mm LED bulbs, as well as finding the longest period that a LED bulb can keep alight was determined. This battery was constructed by using magnesium and copper electrodes. A 1.0 M MgSO_(4.7)H_2O and 0.1 M CuSO_(4.5)H_2O were used as reasonable concentrations to generate the highest voltage value. The results showed that the average values of the generated potential were nearly 1.72 volt with a stable voltage for near 48 hours for one cell. While the generated current for the same cell was ~ 0.493 mA; this value was decreased by 87% at the end of the same period. Furthermore, it is a promising battery because it is able to keep alight one 3 mm LED light bulb for a long period of time and it can operate small devices. |
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