Article ID Journal Published Year Pages File Type
1613993 Journal of Alloys and Compounds 2013 4 Pages PDF
Abstract

•LVP/C is successfully prepared by a novel refluxing-assisted solid-state reaction.•The LVP/C composite contains much lower carbon than that prepared by hydrothermal method.•The LVP/C exhibits more uniform morphology and a smaller size.•The LVP/C shows a desirable electrochemical performance.

A novel refluxing-assisted solid-state reaction (RE-SSR) has been developed to prepare Li3V2(PO4)3/C (LVP/C) composite; hydrothermal-assisted solid-state reaction (HT-SSR) method is employed for comparison. The as-obtained composites have been characterized with XRD, Raman spectrum, SEM, and electrochemical measurements. XRD results indicate that the samples are well indexed as monoclinic LVP. Low carbon-coated LVP prepared by RE-SSR (LVP/C(RE)) shows better electronic conductivity and lower charge-transfer resistance. For LVP/C(RE), SEM image shows uniform morphology and small particle size. It delivers a high initial discharge capacity of 162.3 mAh g−1 at 0.1 C and an average capacity of 138.5 mAh g−1 at 0.5 C. Our experiments demonstrate that the low carbon-coated LVP cathode material prepared by RE-SSR exhibits better electrochemical performance than that prepared by HT-SSR.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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