Novel structurally-stable Na-rich Na 4 V 2 O 7 cathode material with high reversible capacity by utilization of anion redox activity

A sodium-rich vanadium compound, Na 4 V 2 O 7 , is investigated as a cathode material for sodium-ion batteries, which delivers a high reversible capacity of 194 mA h g −1 after activating to 4.7 V. By limiting the cut-off voltage to 4.4 V, a good capacity retention of 93% after 50 cycles is achieved...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2020-07, Vol.56 (59), p.8245-8248
Hauptverfasser:	Su, Bizhe, Liang, Hanqin, Liu, Junnan, Wu, Jimmy, Sharma, Neeraj, Gu, Qinfen, Johannessen, Bernt, Yu, Denis Y. W.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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