Research Output

Development of hybrid aluminum-air battery fuel-cell system

  Industrial 4.0 accelerates the need to introduce clean energy to accommodate the increase in electricity demand globally without causing environmental issues. Metal-air battery is a new type of energy storage system in which the metal anode is consumed to generate electricity through the electrochemical reaction. Among various types of the metal anode, aluminum is a promising energy carrier. Aluminum-air battery shows advantages such as high capacity, abundance, low cost, and being environmentally friendly. Traditional aqueous aluminum-air battery experiences restriction from application due to its self-corrosion issues. In this study, instead of reducing or limiting the self-corrosion issues, a different approach is proposed so to make use of the self-corrosion issues of the aluminum-air battery. By incorporating an additional hydrogen-air subcell to the aluminum-air battery, this hybrid system turned the self-corrosion issue into a beneficial reaction by utilizing the hydrogen gas produced from the aluminum anode as the fuel to power the hydrogen-air fuel cell and improving the overall power performance. The electrical performance of each system is studied experimentally using potassium hydroxide electrolytes. The hybrid system shows a great improvement as compared to a single system. The maximum power is improved by more than 40%. This study shows that the hybrid design is feasible in enhancing the aluminum-air battery performance and yet, maintaining low cost and low weight in nature.

Citation

Tan, W. C., Saw, L. H., Yew, M. C., Pei-Yu, K., Khor, Z. Y., & Sun, D. (2022). Development of hybrid aluminum-air battery fuel-cell system. IOP Conference Series: Earth and Environmental Science, 1074(1), Article 012034. https://doi.org/10.1088/1755-1315/1074/1/012034

Authors

Keywords

Paper, Battery, Aluminum-air battery, Fuel cell, Hydrogen fuel cell, Hybrid

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