Unveiling the reaction mechanism of capacity reactivation in silver vanadate cathodes for aqueous zinc-ion batteries

Capacity reactivation involves the reconstruction of the cathode. Zn 3 (OH) 2 V 2 O 7 ·2H 2 O, showing intercalation pseudocapacitive behavior, forms in situ on the Ag 0.33 V 2 O 5 cathode to prevent cathodic dissolution and activate the capacity.