Modeling galvanostatic charge-discharge of nanoporous supercapacitors.

ABSTRACT: Molecular modeling has been considered indispensable in studying the energy storage of supercapacitors at the atomistic level. The constant potential method (CPM) allows the electric potential to be kept uniform in the electrode, which is essential for a realistic description of the charge repartition and dynamics process in supercapacitors. However, previous CPM studies have been limited to the potentiostatic mode. Although widely adopted in experiments, the galvanostatic mode has rarely been investigated in CPM simulations because of a lack of effective methods. Here we develop a modeling approach to simulating the galvanostatic charge-discharge process of supercapacitors under constant potential. We show that, for nanoporous electrodes, this modeling approach can capture experimentally

SUBMITTER: Zeng L 

PROVIDER: S-EPMC10766529 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature