Superior Lithium-Ion Storage at Room and Elevated Temperature in an Industrial Woodchip Derived Porous Carbon
By Adams, Ryan A.; Dysart, Arthur D.; Esparza, Roberto; Acu
Published in Industrial & Engineering Chemistry Research
2016
Abstract
An industrial pyrolysis process converted loblolly pine tree woodchips into porous carbonaceous particles that are tested as a promising lithium ion battery anode. SureCarbon, a Tennessee company, demonstrated scalability for the KOH activation and pyrolysis process by producing hundreds of kilograms of carbon from the sustainable wood precursor. Material characterization reveals amorphous carbon structure, with 1580 m2/g BET surface area and 0.883 cc/g pore volume. Galvanostatic cycling was performed at a C/10 rate in a half cell (carbon vs Li+/Li), achieving a stable capacity of 700 mAh/g and 1000 mAh/g at 22 and 50