The electrical productivity of Arabica coffee grounds battery based on electrode distance and dryness level

Abstract

Bio-battery is an alternative natural energy source that utilizes organic compounds to generate electricity. This research uses coffee grounds as an environmentally friendly electrolyte paste. This study aims to identify and analyze the current and voltage produced by the bio batteries with the durability of bio batteries made from Arabica coffee grounds based on electrode distance and dryness level. The method used is a direct measurement of coffee grounds using copper (Cu) and zinc (Zn) as electrodes, further testing of the output current and voltage is carried out every 24 hours. The results showed that Arabica coffee grounds produce a maximum voltage of 1.01 V, a current of 0.49 mA and a power of 0.42 W. Based on these results, Arabica coffee grounds have the potential to be used as bio batteries.

Study of Voltage and Electric Current Generated From Cu-Zn Electrodes in a Medium of Sawdust and Coal Stockpile Wastewater.

“…Pawarangan et al studied biobatteries using a paste made from coffee powder and Cu-Zn electrodes. The different electrode spacings of 2, 4, and 6 cm, observed for over 4 hours, revealed that the electric voltage at a 2 cm distance was relatively more significant than at 4 and 6 cm [22].…”

Morphological structure and functional group of Toraja robusta and arabica spent coffee grounds for electronic device applications

“…An industry characterized by the careless disposal of coffee grounds without processing has not fully understood the implications of coffee waste. Currently, coffee waste has begun to be utilized as energy storage [7], [8], thermal energy storage [9], lithium-ion battery anodes [10], biosolid production [11], biofuel production [8], biodiesel production [12], and bio-batteries [13], [14].…”