Electrochemical Performance of Citric Acid-Modified α-MnO2 Cathode for Aqueous Zinc-Ion Batteries
Aqueous zinc-ion batteries (AZIBs) are considered promising for large-scale energy storage owing to their intrinsic safety, low cost, and environmental friendliness. α-MnO2, with its unique 2 × 2 tunnel structure, is regarded as one of the most promising cathode materials for zinc-ion batteries; however, its cycling st...