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A Promising Na3V2(PO4)3/Ag+Graphene Composites as Cathode Material for Hybrid Lithium Batteries

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The NASICON (sodium super ionic conductor) based Na3V2(PO4)3/Ag+graphene (NVP/Ag+G) was successfully synthesized through a sol–gel route using a silver nitrate and graphene as a raw material. The effects of the physical and electrochemical properties of the NVP/Ag+G composites have been evaluated with X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, and electrochemical measurements. The graphene and Ag significantly influenced the morphology, structure and electrochemical performance of the Na3V2(PO4)3 material. In the electrochemical measurement, the (NVP/Ag+G) electrode showed the discharge capacity of 102 mAh g−1 at 0.1 C rate, which was higher than the pristine Na3V2(PO4)3. At a current rate of 5 C, it still exhibits the discharge capacity of 73 mAh g−1 and the capacity retention of 71.6%. The results of higher electrochemical performance of the NVP/Ag+G composites are mainly attributed to the synergetic effect of the graphene and the silver particles.

Document Type: Research Article

Publication date: November 1, 2015

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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