Air-powered Innovation: Exploring the Future of Aluminium-Air Batteries
J. Environ. Nanotechnol., Volume 14, No 3 (September 2025) pp. 573-590
Abstract
This review examines the development of aluminium-air (Al-Air) batteries, a promising alternative to traditional lithium-ion batteries, particularly in sustainable energy storage applications. Al-Air batteries offer significant advantages, including high energy density, low cost, and environmental friendliness, making them ideal for use in electric vehicles, grid infrastructure, and aerospace. The use of abundant and inexpensive aluminium as the anode further reduces production costs, while the eco-friendly nature of these batteries positions them as a greener alternative. However, despite their potential, Al-Air batteries face several challenges that hinder their commercial adoption. Anode corrosion, electrolyte degradation, and limited rechargeability are the primary obstacles. The aluminium anode degrades over time, reducing battery lifespan, and the electrolyte suffers from performance degradation with use. Additionally, the limited rechargeability of Al-Air batteries prevents them from being widely used in applications requiring frequent cycling, such as electric vehicles. Recent advancements in addressing these challenges have been made, including the development of hybrid systems, protective coatings for the anode, and improved electrolytes. Additionally, research into mechanical recharge solutions and enhancements to battery life holds promise for improving the practicality of Al-Air batteries. These advancements could lead to better integration with renewable energy systems and broader commercial adoption in the future.
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