Analisis Perbandingan Tegangan Pada Baterai Berbahan Baku Limbah Barubara dengan Kulit Pisang sebagai Energi Alternatif

Electrical energy is one of the foundations that supports modern progress in various aspects of social and economic life. The source of electrical energy currently used is still considered insufficient to meet human needs, so alternative energy is needed. Alternative energy is an environmentally friendly energy and can be renewed by utilizing waste. One of the promising alternative raw materials is the use of fly ash and bottom ash, which are waste from coal combustion in steam power plants. In the process of utilizing fly ash and bottom ash as raw materials for batteries, special processing and technology are required in order to produce effective and efficient products. On the other hand, the latest innovations show that banana peels, which are generally considered organic waste, also have the potential to be used as a raw material in making batteries. A battery consists of one or more electrochemical cells that are electrically connected and have terminals or contacts to provide electrical energy. As a research method, this emphasizes voltage, current and endurance tests. In this test, the voltage, current and endurance produced by the battery assembly are tested and compared after being given variations in the composition of raw materials. From the experimental results above, it is concluded that fly ash and bottom ash batteries with a mixture of electrolytes get the highest results with a voltage of 1.13 V and a current of 0.111 A then tested on a wall clock that lasted for 5 days. The battery with the highest durability is obtained by a battery containing fly ash and bottom ash with a mixture of electrolyte fluids, but a battery containing banana peels with a mixture of sea water can turn on the clock for 9 hours. Keywords— Fly ash, Bottom Ash, Battery, Banana Peel, Electrolyte