Importance of Electrode Preparation Methodologies in Supercapacitor Applications.

ABSTRACT: The work reported here aims toward the optimization of electrode preparation methodologies for superior performance of supercapacitors through a rigorous understanding of underlying physical parameters. Oxygen-functionalized few-layer graphene was employed as an active material while binders [Nafion, polyvinylidene fluoride (PVDF), and polytetrafluoroethylene], solvents for active material dispersion [ethylene glycol and N-methyl-2-pyrrolidone (NMP)], and electrode-drying temperatures (100, 170, and 190 °C) were varied. Maximum specific capacitances at different electrode preparation conditions ranged from 240 to 318 F g^-1 at 1 mV s^-1 scan rate of cyclic voltammetry for the same active material. The study revealed that the electrodes prepared using the PVDF bin

SUBMITTER: M A 

PROVIDER: S-EPMC6645427 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature