Unraveling the Mechanism of Cooperative Redox Chemistry in High-Efficient Zn²⁺ Storage of Vanadium Oxide Cathode.

ABSTRACT: The inferior capacity and cyclic durability of V₂ O₅ caused by inadequate active sites and sluggish kinetics are the main problems to encumber the widespread industrial applications of vanadium-zinc batteries (VZBs). Herein, a cooperative redox chemistry (CRC) as "electron carrier" is proposed to facilitate the electron-transfer by capturing/providing electrons for the redox of V₂ O₅ . The increased oxygen vacancies in V₂ O₅ provoked in situ by CRC offers numerous Zn²⁺ storage sites and ion-diffusion paths and reduces the electrostatic interactions between vanadium-based cathode and intercalated Zn²⁺ , which enhance Zn²⁺ storage capability and structural stability. The feasibility of this str

SUBMITTER: Zhou L 

PROVIDER: S-EPMC10767404 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature