Are aqueous aluminum-ion batteries the future of energy storage?

Aqueous aluminum-ion batteries hold promises for advanced energy storage systems due to their cost-effectiveness, air stability, and eco-friendliness. However, their development is significantly hindered by the intrinsic limitations of aluminum anodes and aluminum-based electrolytes.

Can aluminum anodes be used for aqueous aluminum-ion batteries?

Therefore, untreated aluminum anodes and ionic liquid-modified aluminum anodes are unlikely to become preferred anode materials for aqueous aluminum-ion batteries, making it difficult to expand the industrial application prospects of such batteries.

What are anode-free aqueous aluminum-ion batteries?

Anode-free aqueous aluminum-ion batteries: Anode-free aqueous aluminum-ion batteries represent a groundbreaking milestone in the field of aqueous aluminum-ion batteries. Aluminum titanate has been confirmed as a viable aluminum source material for such batteries.

Can aluminum-based aqueous electrolytes unlock the application potential of aluminum-ion batteries?

Aluminum-based aqueous electrolytes: Developing advanced aluminum-based aqueous electrolytes may be challenging for unlocking the application potential of aqueous aluminum-ion batteries, as their performance is primarily limited by the alumina film on the aluminum anode.

Why are zinc anodes better than aluminum ion batteries?

They not only inherit the high theoretical capacity of aluminum-ion batteries but also benefit from the superior plating/stripping characteristics of zinc anodes in aqueous electrolytes.

What makes aluminum ion batteries so special?

Aluminum-ion batteries stand out with their remarkably high theoretical capacities (2980 mAh g −1 and 8040 mAh cm −3 [28, 29]) and the abundant reserves of aluminum in the Earth's crust (approximately 82,000 ppm [30, 31]), far surpassing those of other metal-ion batteries.