Characterization of Bio-battery from Tropical Almond Paste

Abstract

Bio-battery is a device that generates electricity from organic compounds. However, organic compounds derived from crops should be avoided in order to prevent food shortages. The tropical almond (Terminalia catappa L.) widely known as "ketapang" in Indonesia is considered as potential bio-fuel cells for bio-batteries since it is rich in sugar, a non-crop and grows abundantly in Indonesia. In this study we developed a bio-battery prototype from tropical almond paste. The characterization of this device yields an average open cell voltage of 0.98 ± 0.09 V, and the power curve shows a peak value of 0.25 mW with a stable current lasting up to 2 days while observed when the device was connected to a load of 100Ω. This device may be suitable to apply in rural communities.