Table 2.

Comparison of advantages and disadvantages in inorganic and organic supercapacitors.

Property	For components used in inorganic supercapacitor	For components used in organic supercapacitor
Conductivity	Relatively very high, some shows very exceptional conductivity	Low, need the incorporation of conducting material blending
Self‐discharge	Moderate to high, the main reason is the use of aqueous electrolyte	Low when ionic liquid is used as a component, Some materials with a higher number of the functional group can
Voltage	Low to moderate depending on the stability of the electrolyte	Very as most of them use organic electrolytes which better stability window compared to 1.23 V for water
Capacity	Very High	Low to moderate values observed till now
Energy density and power density	Very high‐power density but the low energy density	Low power density but the high energy density
Kinetics	Fast kinetics are observed	Low kinetics for ion flow ad redox reactions observed
Thermal stability	Mostly stable under higher temperatures	Thermal stability is low except for conducting polymers
Solubility in the case of electrolyte	Don′t withstand a high potential window and also most of them show redox behaviour within a lower potential region	Can easily provide 2–4 V od stable potential window
Preparation complexity	To have good morphologies need to employ complex and multi‐step synthesis	Most of them are synthesizable by simple to moderate strategies
Long term stability	Highly stable	Low to moderate
Environfriedlyness	Most of the inorganic materials are highly toxic to the environment	Good towards environment and carbon footprint is less and some materials can easily decompose to the environment