Identification of Flowing Electrolyte Lead Acid Battery Operating Voltage
Kurriawan Budi Pranata1, a) Muhammad Ghufron2, b) , Istiroyah3, , Yuni Triasari4, Nur Khairati5, Muhammad Priyono Tri Sulistyanto6, Sulthoni Akbar7, Fauzan Azhiman Irham8

Universitas PGRI Kanjuruhan Malang

Abstract

Abstract. Research has been carried out to identify the operational voltage of the battery with flowing electrolyte conditions based on 30% concentration of H2SO4 solution. The battery consists of six unit cells using Pb and PbO electrodes. The battery is equipped with a 1200 mL electrolyte reservoir to supply electrolyte to each unit cell. So that each unit cell is given holes at the bottom and top to circulate the H2SO4 electrolyte solution using a magnetic pump. Furthermore, the five cycles of charging and discharging were tested using a constant current method of 2 A for the charging process and 0.5 A constant current for the emptying process assisted by the turnigy accu cell tool. During the test process, monitoring and recording of voltage data were carried out via a laptop PC, then the voltage data was processed using a webplotdigitizer, then graphed using microsoft excel was performed. The results of the test data identified the operational voltage of the battery performance with an average voltage of five cycles of the charging process of 13.98 volts and the average voltage during the discharge process of 12.11 volts. So a six cell battery assembled on a full charge works in the 12.11 volt-13.98 volt range. During the charging process using the 2 A constant current method, the battery takes an average of 7.49 hours. So it can be estimated that the battery charging capacity is 14980 mAh. Meanwhile, during the process of discharging the constant current method of 0.5 A, the battery requires a discharge time of 11 hours with a voltage drop of 10.81 volts. This means that the battery discharge capacity is 5500 mAh.

Keywords: flowing electrolyte, charging, discharging, operational voltage.

Topic: Physics