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Ionic liquid electrolytes supporting high energy density in sodium-ion batteries based on sodium vanadium phosphate composites
journal contribution
posted on 2018-04-11, 00:00 authored by C V Manohar, Tiago Correia Mendes, Mega KarMega Kar, Dabin Wang, Changlong Xiao, Maria ForsythMaria Forsyth, Sagar Mitra, Douglas R MacFarlaneSodium-ion batteries (SIBs) are widely considered as alternative, sustainable, and cost-effective energy storage devices for large-scale energy storage applications. In this work, an easily fabricated sodium vanadium phosphate-carbon composite (NVP@C) cathode material shows a good rate capability, and long cycle life (89% capacity retention after 5000 cycles at a rate of 10C) with an ionic liquid electrolyte for room temperature sodium metal batteries. The electrochemical performance of a full-cell sodium ion battery with NVP@C and hard carbon electrodes was also investigated at room temperature with an ionic liquid electrolyte. The battery exhibited 368 W h kg-1 energy density and 75% capacity retention after 100 cycles, outperforming the organic electrolyte-based devices.
History
Journal
Chemical communicationsVolume
54Issue
28Pagination
3500 - 3503Publisher
Royal Society of ChemistryLocation
Cambridge, Eng.Publisher DOI
eISSN
1364-548XLanguage
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, The Royal Society of ChemistryUsage metrics
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No categories selectedKeywords
Sodium-ion batteries (SIBs)sodium vanadium phosphate–carbon composite (NVP@C)full-cell sodium ion batteryionic liquid electrolyteScience & TechnologyPhysical SciencesChemistry, MultidisciplinaryChemistryHARD CARBONHYBRID ELECTROLYTESPOSITIVE ELECTRODESECONDARY BATTERYNAFSA-KFSAANODEOPTIMIZATIONPERFORMANCECATHODESNACRO2
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