Journal
NANOSCALE
Volume 6, Issue 15, Pages 8926-8934Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr01892c
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Funding
- National Research Foundation (NRF, Singapore) [NRF-CRP4-2008-03]
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We report for the first time the synthesis and extraordinary performance of a high voltage spinet LiNi0.5Mn1.5O4 fiber cathode in all one dimensional (1D) architecture. Structural and morphological features are analyzed by various characterization techniques. Li-insertion/extraction properties are evaluated in a half-cell assembly (Li/LiNi0.5Mn1.5O4) and subsequently in full-cell configuration with an anatase TiO2 fiber anode. In both half- and full-cell assemblies, gelled polyvinylidene fluoride-co-hexafluoropropylene (PVdF-HFP) is used as the separator-cum-electrolyte. All the one dimensional components used for fabricating Li-ion cells are prepared by a simple and scalable electrospinning technique. The full-cell, LiNi0.5Mn1.5O4/gelled PVdF-HFP/TiO2 delivered the reversible capacity of similar to 102 mA h g(-1) at 0.1 C rate with an operating potential of similar to 2.8 V. Excellent rate capability and stable cycling profiles are noted for such a full-cell assembly with a capacity retention of similar to 86% after 400 cycles.
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