Abstract
Vanadium oxides (VOs) are promising cathode materials for aqueous batteries due to their high theoretical capacity, but they face challenges such as sluggish kinetics and V dissolution. To overcome these issues, we introduce a universal alcohol-based molecule coupling (AMC) method to regulate amorphousness and inhibit V dissolution in VOs (VO
2
, V
2
O
5
, and V
6
O
13
), resulting in high-performance cathodes. The strategy enables alcohol molecules with different chain lengths (ethanol, isopropanol, and isobutanol) to couple with VOs by forming V─OH bonds under Lewis acid–based interactions, inducing controlled amorphization. Among these, isopropanol coupling stands out by enabling the formation of short-range ordered amorphous structure (SOA-VO/Ipr). This structure enhances the reaction kinetics and suppresses V dissolution. As a result, the SOA-VO/Ipr cathode achieves 219.4 mAh g
−1
at 100 A g
−1
, retains 92.6% capacity over 10,000 cycles, and delivers 228.8 mAh g
−1
at 9.1 A g
−1
under high loading (21.9 mg cm
−2
) over 3500 cycles, demonstrating a promising method for durable zinc-ion batteries.