fig9

Figure 9. Effect diagram of PPDP applied to a graphene-based solid-state supercapacitor. (A) A typical Ragone plot of as-fabricated graphene-based solid-state supercapacitors. Inset is a prototype of graphene-based solid-state supercapacitor applying PPDP gel electrolyte with a planar configuration. (B) Galvanostatic charge-discharge curves of a single supercapacitor (SC) and two SCs connected in series and in parallel at 8 A·cm^-3. (C) Comparison of CV curves between normal and bent status (90°) and the scan rate is 50 mV·s^-1[27]. Reproduced with permission^[27]. Copyright 2016, Springer.