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Abstract:
A layer structured K-doped (NH4)(2)V3O8/graphene (K-NVG) was prepared via a hydrothermal route and then used as an anode material for sodium-ion batteries for the first time. The K-NVG nanosheets have a diameter in the range of 200-500 nm. The K-NVG electrode exhibited stable cycling and a good rate performance with a reversible capacity of 235.4 mA h g(-1), which is much higher than the 90.5 mA h g(-1) value of the (NH4)(2)V3O8/graphene electrode after 100 cycles at a current density of 100 mA g(-1). Simultaneously, the retention rate was maintained at 82% even after 250 cycles at the current density of 300 mA g(-1). Such good electrochemical properties may be attributed to the K-NVG's stable layered structure.
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DALTON TRANSACTIONS
ISSN: 1477-9226
Year: 2015
Issue: 43
Volume: 44
Page: 18864-18869
4 . 1 7 7
JCR@2015
3 . 5 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:265
JCR Journal Grade:1
CAS Journal Grade:2
Affiliated Colleges:
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