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 V2O5 within the metal organic framework derived carbonaceous dodecahedrons. Vanadium precursor is absorbed into the porous dodecahedron-shaped carbon framework first and then in situ converted into V2O5 within the carbonaceous framework in the annealing process in air. As cathode materials for lithium ion batteries, the porous V2O5@C composites exhibit enhanced electrochemical performance, due to the synergistic effect of V2O5 and carbon composite.
School of Materials Science & Engineering, Central South University , Changsha 410083, Hunan, China.
Yifang
Y
Zhang
School of Materials Science & Engineering, Central South University , Changsha 410083, Hunan, China.|State Key Laboratory of Powder Metallurgy, Central South University , Changsha 410083, Hunan, China.
Anqiang
A
Pan
School of Materials Science & Engineering, Central South University , Changsha 410083, Hunan, China.
Yaping
Y
Wang
State Key Laboratory of Powder Metallurgy, Central South University , Changsha 410083, Hunan, China.
Weifeng
W
Wei
School of Materials Science & Engineering, Central South University , Changsha 410083, Hunan, China.
Yanhui
Y
Su
School of Materials Science & Engineering, Central South University , Changsha 410083, Hunan, China.
Jimei
J
Hu
Department of Materials Science & Engineering, University of Washington , Seattle, Washington 98195, United States.
Guozhong
G
Cao
School of Materials Science & Engineering, Central South University , Changsha 410083, Hunan, China.
Shuquan
S
Liang
carbon; cathode; lithium ion batteries; metal organic framework; vanadium oxides