journal article·2026-10

Comparison of electrolyte type influence on the electrochemical performance of VO2/PPy composite as cathode for AZIBs

A.Yu. Popov, K.R. Loktev, K.I. Rashitova, O.M. Osmolovskaya, S.N. Eliseeva

Materials Letters· Volume 421
Publisher page

Abstract

The influence of electrolyte composition (Zn(CF3SO3)2 vs. ZnSO4) on the electrochemical performance of VO2/PPy cathode for aqueous zinc-ion batteries was systematically investigated. The electrochemical performance of VO2/PPy composite in Zn(CF3SO3)2 is significantly superior compared to that in ZnSO4. After 250 cycles, the triflate electrolyte enabled a capacity retention of 60% (maximum 306.3 mAh∙g-1), while the sulfate system retained only 24% of its initial capacity. The results obtained demonstrate that the combination of VO2/PPy cathode with a zinc triflate electrolyte provides superior rate capability, cycling stability, and charge-transfer kinetics compared to the sulfate-based system.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advanced battery technologies research · Advanced oxidation water treatment · Advancements in Battery Materials

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