Researchers propose new VO2 cathode material for aluminum-ion rechargeable battery
Researchers propose new VO2 cathode material for aluminum-ion rechargeable battery 30 November 2013 Schematic representation of the super-valent battery during charge/discharge process. Wang et al. Click to enlarge. A team from the University of Science and Technology Beijing is proposing a new super-valent battery based on aluminium ion intercalation and deintercalation. In an open access paper published in the Nature Publishing Group’s Scientific Reports , the researchers report that the cell can provide a discharge capacity at a current density of 50 mAg−1 of 165 mAhg-1 in the initial cycle and retain 116 mAhg-1 after 100 cycles. The new cell uses vanadium oxide (VO2 ) nanorods synthesized through a low temperature hydrothermal method as the cathode material and high-purity aluminum foil as the anode. The battery exhibits excellent reversibility and relatively long cycl...