Engineering energy storage devices by controlling defects in carbon-based electrodes
AssigneeNew York University
InventorsTing Wu, Abdullah Alharbi, Roozbeh Kiani, Davood Shahrjerdi
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Abstract
An energy storage device containing a carbon-based electrode composed of graphitic film having a density of specific types of structural defects is explained. The carbon-based electrode may be used as an electrode in a supercapacitor or as an anode layer of a rechargeable battery. A distributed model is developed that predicts the area-normalized apparent capacitance from the density of point and line defects in the graphitic film. From this model, one can engineer the apparent capacitance by controlling the density of point and line defects.
Claims25
An energy storage device comprising a carbon-based electrode composed of a graphitic film having sp2 hybridization and a density of zero- and one-dimensional defects.
An energy storage device comprising a carbon-based electrode composed of a fully disordered sp2 carbon material and containing a density of zero-dimensional and one-dimensional defects.
A distributed model that predicts the area-normalized apparent capacitance of sp2-hybridized carbon materials in stage (i) of graphene amorphization trajectory from the density of point and line defects.
Dependencies are inferred from the claim text.