Enhancing structural stability of NaCrO2 by Nb-substituting for sodium-ion battery

As an attractive cathode material, the layered sodium chromium oxide NaCrO2 (NCO) can provide a reversible capacity of around 120 mAh g−1 between 2.0 and 3.6 V, which corresponds to about 0.5 Na per formula is extracted/inserted. However, irreversible phase transition happens in NaxCrO2 when x is le...

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Veröffentlicht in:	Journal of alloys and compounds Jg. 925; S. 166690
Hauptverfasser:	Wang, Shuo, Chen, Fei, He, Hai-yan, Zhu, Yi-ran, Liu, Huai-bing, Chen, Chun-hua
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Lausanne Elsevier B.V 05.12.2022 Elsevier BV
Schlagworte:	Chromium oxides Crystal structure Cycle stability Electrochemical analysis Electrode materials High voltage Ion currents Phase transitions Rate performance Sodium Sodium chromites Sodium chromium oxide Sodium-ion batteries Sodium-ion battery Sol-gel processes Structural stability Sodium chromium oxide Cycle stability Sodium-ion battery High voltage Rate performance
ISSN:	0925-8388, 1873-4669
Online-Zugang:	Volltext
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