Electrochemical Performances of Nanoporous Carbon Anode for Super Lithium Ion Capacitor

Hierarchical nanoporous carbon (HNC) anode material with average pore size of 4.7nm and Brunauer Emmett Teller (BET) surface area of 248.66 m²/g was prepared for super lithium ion capacitor by using phenolic resin as raw materials and Ni(OH)₂ / NaNO₃ / NaOH composites as templates,. The electrochemical performance of the carbon electrode was tested in both electric double-layer capacitor (EDLC) and lithium ion battery (LIB). Voltage-current peoples for the carbon electrode in EDLC exhibit non-ideal rectangular response to different scan rates from 10 mV/s to 100 mV/s, confirming the double-layer behavior and high reversibility of the carbon studied. When acting as LIB anode, it exhibits a good cyclability after the initial irreversibility, associated with a stable capacity of of 234 mAh/g during the first 50 cycles at a reasonable current density (0.2C).