Weakly Polarized Organic Cation-Modified Hydrated Vanadium Oxides for High-Energy Efficiency Aqueous Zinc-Ion Batteries.

ABSTRACT: Vanadium oxides, particularly hydrated forms like V₂O₅·nH₂O (VOH), stand out as promising cathode candidates for aqueous zinc ion batteries due to their adjustable layered structure, unique electronic characteristics, and high theoretical capacities. However, challenges such as vanadium dissolution, sluggish Zn²⁺ diffusion kinetics, and low operating voltage still hinder their direct application. In this study, we present a novel vanadium oxide ([C₆H₆N(CH₃)₃]_1.08V₈O₂₀·0.06H₂O, TMPA-VOH), developed by pre-inserting trimethylphenylammonium (TMPA⁺) cations into VOH. The incorporation of weakly polarized organic cations capitalizes on both ionic pre-int

SUBMITTER: Jia X 

PROVIDER: S-EPMC10884394 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature