1 research outputs found
Dodecahedron-Shaped Porous Vanadium Oxide and Carbon Composite for High-Rate Lithium Ion Batteries
Carbon-based
nanocomposites have been extensively studied in energy
storage and conversion systems because of their superior electrochemical
performance. However, the majority of metal oxides are grown on the
surface of carbonaceous material. Herein, we report a different strategy
of constructing V<sub>2</sub>O<sub>5</sub> within the metal organic
framework derived carbonaceous dodecahedrons. Vanadium precursor is
absorbed into the porous dodecahedron-shaped carbon framework first
and then <i>in situ</i> converted into V<sub>2</sub>O<sub>5</sub> within the carbonaceous framework in the annealing process
in air. As cathode materials for lithium ion batteries, the porous
V<sub>2</sub>O<sub>5</sub>@C composites exhibit enhanced electrochemical
performance, due to the synergistic effect of V<sub>2</sub>O<sub>5</sub> and carbon composite