Identification of Electrical Properties of Bio-battery based on Spent Coffee Grounds

Abstract

Principally, renewable energy technology produces energy by converting natural resources into useful forms of energy. Bio-battery is an alternative natural energy source that utilizes nanoparticles from plants to generate electricity. In this study, coffee grounds were used as an electrolyte paste to produce bio-battery. This study aims to determine the potential use of spent coffee grounds as an electrolyte paste. Furthermore, the analysis of the composition of the best coffee grounds to produce the optimum current and the level of effectiveness of the bio-battery in terms of the current value. To determine whether there is an effect of coffee grounds concentration on the resulting current, a series of experiments were carried out to determine the best composition between the type and concentration of coffee grounds. Characterization of the device produces a maximum voltage of 1.11 ± 0.09 V and a power of 0.25 mW. The combination of series and parallel needs to be developed to achieve higher circuit voltages and power.

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

“…The electrons that flow from the zinc (Cu) electrode to the copper (Zn) will cause the copper electrode to be covered by a layer of oxidation. It contributes to a decrease in the voltage value due to the reduction process at the copper (Cu) electrode and oxidation events at the zinc (Zn) electrode [1]. Furthermore.…”

“…and this voltage decreased due to the reduction process at the copper (Cu) electrode. and the oxidation event at the zinc (Zn) electrode used [1].…”

“…who has facilitated and motivated the process of writing this article and publication. The electrical productivity of Arabica coffee grounds battery based on electrode distance and dryness level Jurnal Riset dan Kajian Pendidikan Fisika, 2022; 9 (1)…”

“…One of them can be seen in the use of batteries as a source of electricity which continues to increase along with technological advances. A battery is a device that can generate an electric current through a chemical process [1]. The battery is made of zinc as an anode, carbon as a cathode, and the electrolyte used in a mixture of manganese oxide (MnO 2 ) paste, carbon powder, and ammonium chloride (NH 4 Cl).…”

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].…”