Supercapacitors, also known as electrochemical capacitors, have gained significant attention due to their high power density, rapid charge-discharge cycles, and long cycle life. However, while their features are well-established in small-scale devices and laboratory settings, transitioning to large-scale production poses significant challenges. This thesis focuses on the scalability aspects of supercapacitor electrode technology through a roll-to-roll (R2R) process, in which water-based slurry are used as the main vehicle for coating. In first analysis the rheology of the slurries was under investigation, in order to extrapolate information about how the slurry behaves when it's disrupted. Properties such as viscosity, viscoelasticity and time response to a shear stress are useful parameters that define the quality of the coating in a R2R process.