Effect of Binders in Block-formed Carbon Nanotube Electrodes on Performances of Electric Double-layer Capacitors

Carbon nanotubes(CNTs) are suitable to make electrodes for electric double-layer capacitors(EDLCs), because they possess excellent conductivity and suitable surface to form electric double layer. The properties of capacitors are influenced by binders in electrodes. In our work, phenolic resin and teflon(PTFE) were chosen as binders to carbon nanotubes electrodes. Based on organic electrolyte, the relationship of capacitance property, specific surface and microstructure was studied, and the suitable binder (PTFE) for carbon nanotubes electrodes was proposed.