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|Title:||A layered oxalatophosphate framework as a cathode material for Li-ion batteries||Authors:||Shahul Hameed, A.
|Issue Date:||14-May-2013||Citation:||Shahul Hameed, A., Nagarathinam, M., Schreyer, M., Reddy, M.V., Chowdari, B.V.R., Vittal, J.J. (2013-05-14). A layered oxalatophosphate framework as a cathode material for Li-ion batteries. Journal of Materials Chemistry A 1 (18) : 5721-5726. ScholarBank@NUS Repository. https://doi.org/10.1039/c3ta10464h||Abstract:||A new lithium containing hybrid inorganic-organic open framework material, Li2(VO)2(HPO4)2(C2O 4), has been synthesized and its reversible lithium storage has been investigated. Firstly, the hydrated phase Li2(VO) 2(HPO4)2(C2O4) ·6H2O (1) was obtained via a hydrothermal route at 120°C which on dehydration yielded the anhydrous phase. The crystal structure of 1 was solved and refined from its powder X-ray diffraction data and optimized by DFT calculations. The presence of extractable lithium ions in the inter-layer space together with the feasibility of the V4+/5+ redox couple make this compound suitable for cathode applications in Li-ion batteries. Electrochemical properties of this material were studied using galvanostatic charge-discharge cycling, cyclic voltammetry, electrochemical impedance spectroscopy (EIS) and ex situ XRD studies. The material exhibits reversible lithium insertion/extraction during cycling. This journal is © 2013 The Royal Society of Chemistry.||Source Title:||Journal of Materials Chemistry A||URI:||http://scholarbank.nus.edu.sg/handle/10635/92951||ISSN:||20507488||DOI:||10.1039/c3ta10464h|
|Appears in Collections:||Staff Publications|
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