Author: Siti Nuryanti, Sitti Rahmawati, Purnama Ningsih dan Tri Santoso and Yongki A. Pondanan

DOI: http://doi.org/10.31788/RJC.2022.1557093

Cassava peel (Manihot esculenta) is the result of the chip manufacturing industry which has been considered as a by-product so that it can only be a waste that can be recycled. Cassava peel has a carbon content of 59.31%. Based on the carbon content data, this study aims to prove that cassava peel waste can be used as a biobattery and to determine the voltage and current generated. The measurement of voltage and electric current is based on a function of the distance of the electrode and the surface area of the electrode. The electric voltage as a function of the surface area of the electrodes and a function of the distance between the electrodes determines t h e flow solidity and t h e electrical voltage. This research showed the voltage was 0.563 V and the current was 0.014 mA. T h e test was carried out by replacing the carbon in the battery with activated charcoal and cassava peel juice was able to light up on a wall clock for 8 hours. So, cassava peel waste can be used as alternative energy to replace batteries or biobatteries.

Keywords: Manihot esculenta, Battery, Electric Voltage, and Electric Current Strength.