The improved cycling stability and rate capability of Nb-doped NaV3O8 cathode for sodium-ion batteries

•NVO material doped by niobium ion (Nb5+) was successfully prepared by the rheological phase method.•Nb-doping lead to an expansion of the lattice volume and increase the intrinsic conductivity.•NaNb0.018V2.982O8 demonstrates high-rate capability and long-term cyclability.•Pseudocapacitive behavior...

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Veröffentlicht in:	Journal of alloys and compounds 2022-01, Vol.890, p.161885, Article 161885
Hauptverfasser:	Zhu, Limin, Pan, Chunliang, Han, Qing, Miao, Yongxia, Yang, Xinli, Xie, Lingling, Cao, Xiaoyu
Format:	Artikel
Sprache:	eng
Schlagworte:	Cathodes Charge transfer Cycles Electrochemical impedance spectroscopy Electrode materials Enhanced electrochemical performances Flux density NaV3O8 cathode materials Nb5+ ions doping Niobium Rechargeable batteries Sodium-ion batteries Storage batteries Storage capacity Structural stability X ray powder diffraction
Online-Zugang:	Volltext
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