The study also aimed to assess differences in the analysis and reporting of data from cells displaying both "ideal" and "non-ideal" capacitive performances. Therefore, Files 1 and 3 were from ideal supercapacitor cells, which display approximately linear triangular GCD and rectangular CV profiles, indicating charge storage is dominated by electric-double layer contributions. In contrast, Files 2 and 4 were collected from non-ideal supercapacitor cells, which display non-linear quasi-triangular GCD and quasi-rectangular CV profiles, indicating that either other charge storage mechanisms (e.g. fast redox reactions) contribute to the charge stored, or that the device has a high resistance. The classification of each dataset as ideal or non-ideal is indicated above in Figure .