Porous Activated Carbon Derived from Distillers Dried Grains with Soluble as Lithium Ion Battery Anode Material

摘要

The porous carbons, with high specific surface area and high pore volume have been prepared from sustainable feedstock bio-char, and have been used for lithium ion battery. The properties of the porous carbons were characterized by Brunauer-Emmett-Teller instrument, Elemental analyzer and Scanning Electron Microscope. The carbon electrodes were analyzed by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectrometry. The results obtained from the instruments indicate that porous carbon (2242 m~2 g~(-1)) with 3.88 wt.% oxygen content had a high specific capacity of 600 mA h g~(-1) for the first 30th cycles, which is much higher than the theoretic capacity (372 mA h g~(-1)) of graphite anode.