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Lu Wei, Marta Sevilla, Antonio B. Fuertes, Robert Mokaya and Gleb Yushin Hydrothermal Carbonization of Abundant Renewable Natural Organic Chemicals for High-Performance Supercapacitor Electrodes Advanced Energy Materials 1

Article first published online: 12 MAY 2011 | DOI: 10.1002/aenm.201100019

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Cellulose, potato starch, and eucalyptus wood saw dust were transformed into porous carbons with micropore surface areas of up to 2387 m2/g. The specific capacitance of the produced carbons approaches 236 F/g (100 F/cc) when measured in a symmetric configuration in an organic electrolyte. Charge-discharge tests showed excellent capacitance retention with capacitance of up to 175 F/g at an ultra-high current density of 20 A/g.

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