首页|Rechargeable aqueous zinc ion battery based on NaV6O15 nanorods by surfactant-assisted method
Rechargeable aqueous zinc ion battery based on NaV6O15 nanorods by surfactant-assisted method
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NSTL
Elsevier
? 2022 Elsevier B.V.Vanadium oxides have a wide range of applications in aqueous zinc ion batteries due to their abundant resources and multiple valence states. However, the inherent low conductivity and structural instability of Vanadium-based materials often lead to the rapid degradation of their capacity. Consequently, stable microstructure and coordinated ion transport channels are essential to improve electrochemical performance. In this work, we report a surfactant-assisted hydrothermal method to obtain NaV6O15 with rod-like morphology and good dispersion. The surfactant-assisted NaV6O15 (NVO-I) electrode exhibited better cycle stability than the electrode without surfactant (NVO-II) during long cycles. The ordered morphology facilitated contact between the electrode and electrolyte, so the NVO-I electrode showed high electrochemical performance. The reversible capacity was 290.2 mAh g?1 at 0.1 A g?1, and the capacity retention was 95 % after 900 cycles at 1.0 A g?1. The surfactant-assisted hydrothermal strategy provides more options for developing stable and efficient AZIBs than other techniques.
Aqueous zinc ion batteriesMorphologySodium vanadateSurfactant-assisted hydrothermal methods
Tang W.、Liu H.、Peng S.、Li T.、Cao P.、Xia Y.、Sun A.
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School of Packaging and Materials Engineering Hunan University of Technology
NSTL
Elsevier
