Lolupiman, K;
Yang, C;
Woottapanit, P;
Sukmas, W;
Limphirat, W;
Rodthongkum, N;
Zhang, X;
... Qin, J; + view all
(2025)
Sulfur-Doped Vanadium Oxide for High-Performance and Stable Cathode Material of Zinc-Ion Batteries.
Advanced Functional Materials
, Article e24100. 10.1002/adfm.202524100.
(In press).
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Abstract
Vanadium oxides (V2O5) are promising alternatives to the cathode for zinc-ion batteries with multivalent electrons and layered structures that support reversible ion insertion-extraction and provide higher theoretical capacity. However, they suffer from poor electronic conductivity, high material dissolution into electrolytes, and structural degradation, resulting in reduced capacity and shorter lifespans. Herein, the synthesized sulfur-doped V2O5 via a controlled calcination process to achieve high-performance cathode materials. The optimized conditions lead to V2O5 material with increased interlayer spacing, improved structural stability, and enhanced electronic conductivity. Sulfur doping introduces defect sites, which promotes faster Zn2⁺ ion diffusion and improves charge transfer kinetics. These contribute to the excellent electrochemical performance of the S-doped V2O5. As a result, it achieves a high specific capacity of 142.2 mAh g−1 and impressive long-term stability over 5,000 cycles at a current density of 2 A g−1. These findings suggest that S-doped V2O5 is a promising cathode material for high performance and stable zinc-ion batteries and can be an alternative cathode material for next generation energy storage applications.
| Type: | Article |
|---|---|
| Title: | Sulfur-Doped Vanadium Oxide for High-Performance and Stable Cathode Material of Zinc-Ion Batteries |
| DOI: | 10.1002/adfm.202524100 |
| Publisher version: | https://doi.org/10.1002/adfm.202524100 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Electrochemical mechanism, in situ XAS, sulfur doping, vanadium oxide,zinc-ion battery |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10217344 |
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