Ultrasonic synthesis of conducting polymers intercalated potassium vanadate nanofiber composites as cathode for aqueous zinc-ion batteries.

ABSTRACT: Aqueous zinc-ion batteries (AZIBs) have gained attention as next-generation energy storage systems due to their safety, cost-effectiveness, and eco-friendliness. However, their commercialization is hindered by the structural instability and low electrochemical performance of cathode materials. Herein, we present poly(3,4-ethylenedioxythiophene) (PEDOT)-intercalated potassium vanadate nanofibers (E-PVNF) with oxygen vacancies, synthesized via a sonochemical method. Oxygen vacancies play a crucial role in facilitating Zn²⁺ diffusion and charge transport by providing additional ion migration channels and enhancing electronic conductivity. The E-PVNF exhibited a high specific capacity of 182.50mAh g^-1 even at a high current density of 15 A g^-1, significantly ou

SUBMITTER: Han J 

PROVIDER: S-EPMC12141844 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature