For aqueous electrolytes we generally apply 1.2 V voltage window for CV and GCD after that water will disassociates.
Hi, it is possible to apply up to 2.0V for asymmetrical supercapacitors in aqueous electrolyte, this is because that the applied potential will be shared by both electrodes (positive and negative electrodes), unlike for a single working electrode. Meanwhile, CV also can be used to double check whether there is any polarization peaks. If no any polarization peaks was observed, that means such potential is available.
Hi, what is the maximum voltage that we can apply for symmetrical system?
Dear Kiran Donthula ,
you are asking, actually, what is all about (a) floating voltage(s) in symmetrical (supercapacitors') cells.
So, the maximum (floating and parametric) voltage that we can apply for symmetrical system(s) depends, mainly, on your WE[1] (maximum, NON-floating voltage, e.g. the) potential, PWE.max with respect to a standard RE[2-4] , to say one, the standard (primary[2]) hydrogen electrode, SHE[2-4].
1. Working Electrode https://en.wikipedia.org/wiki/Working_electrode
2. Reference Electrodes: Concept, Types, and Examples https://www.embibe.com/exams/reference-electrodes/
3. Aqueous Reference Electrode https://en.wikipedia.org/wiki/Reference_electrode
4. Reference Electrodes https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Supplemental_Modules_(Analytical_Chemistry)/Analytical_Sciences_Digital_Library/Courseware/Analytical_Electrochemistry%3A_Potentiometry/03_Potentiometric_Theory/04_Reference_Electrodes
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