4.6 Article

Template-free synthesis of hierarchical hollow V2O5 microspheres with highly stable lithium storage capacity

Journal

RSC ADVANCES
Volume 7, Issue 5, Pages 2480-2485

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra25997a

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Funding

  1. General Research Fund Scheme of the Research Grants Council of Hong Kong [17206714, 17212015]
  2. HKU Strategic Research Themes on Clean Energy and Earth as a Habitable Planet

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Hollow V2O5 microspheres were successfully synthesized by a solvothermal method and subsequent calcination. The rigid hollow V2O5 cathode prepared in isopropanol solvent exhibited excellent cycling performance and rate capability. Within a voltage window of 2.5 to 4 V, a maximum specific discharge capacity of 128 mA h g(-1) was delivered at 1 A g(-1). Even after 500 cycles, the capacity retention was 92.2%.

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