Hybrid Deep Eutectic Solvent of LiTFSI-Ethylene Glycol Organic Electrolyte for Activated Carbon-Based Supercapacitors

Table 3

Oxidation and reduction limit potentials of mixture DES 1 : 4 + x% wt. AN and DES 1 : 4 + y% wt. EC.

x (%)	Eanode (V)	Ecathode (V)	y	Eanode (V)	Ecathode (V)
0% wt. AN	4.52	2.55	0% wt. EC	4.52	2.55
10% wt. AN	4.55	2.43	10% wt. EC	4.66	2.42
20% wt. AN	4.58	2.42	20% wt. EC	4.65	2.42
30% wt. AN	4.58	2.64	30% wt. EC	4.67	2.41
50% wt. AN	4.49	2.73	50% wt. EC	4.55	2.41

i_background for E_cathode = 0.02 mA, i_background for E_anode = 0.002 mA. : the potential value is versus Li⁺/Li.