Microstructure and Discharge Performance of Aluminum Al 6061 Alloy as Anode for Electrolyte Activated Battery

Priyathashiny Pongali and Wai, Yin Wong and Lo, Alvie Sin Voi and Lap, Sammy Ip Chan and Kean, Long Lim (2020) Microstructure and Discharge Performance of Aluminum Al 6061 Alloy as Anode for Electrolyte Activated Battery. Sains Malaysiana, 49 (12). pp. 3243-3254.

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URL: http://dx.doi.org/10.17576/jsm-2020-4912-35

Abstract

Electrolyte activated battery finds its important use during natural disaster emergencies, such as floods and typhoons. Nevertheless, high corrosion rate will deteriorate the discharge performance of the battery and it is influenced by the type of electrolyte and discharge current. In this study, the corrosion and discharge performance of a commercial Al 6061 aluminum alloy as an anode are investigated at different discharge currents (0.001, 0.01, and 1 mA) and in different electrolytes, namely salt water, urea, and distilled water. Scanning electron microscopy results show that electrode in salt water has the most serious corrosion, followed by that of in urea and in distilled water. These electrodeelectrolyte combinations are further investigated with potentiodynamic polarization, galvanostatic discharge, and electrochemical impedance spectroscopy (EIS) to understand their discharge potential, discharge behavior, and corrosion mechanism. Among all combinations, aluminum in water is found to have the highest discharge performance with discharge potentials ranging from 716 to 744 mV, regardless of discharge current.

Item Type:	Article
Keyword:	Aluminum based battery, electrolyte activation battery, emergency power generation
Subjects:	Q Science > Q Science (General)
Department:	FACULTY > Faculty of Food Science and Nutrition
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	20 Apr 2021 07:49
Last Modified:	20 Apr 2021 07:49
URI:	https://eprints.ums.edu.my/id/eprint/26788

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