Evaluation of Structural and Electrochemical Properties of Supercapacitors with Graphene Electrodes and Hydrated Pure or Mixed [bmim]-Based Ionic Liquids via Molecular Dynamics.

ABSTRACT: This study investigates the effect of anion composition on the performance of supercapacitors (SCs) using hydrated ionic liquids and graphene electrodes, focusing on comparing pure and mixed electrolytes. Systems containing [bmim] paired with NO₃ ^-, ClO₄ ^-, and Br^- were evaluated to assess their impact on electric double layer (EDL) formation and electrochemical behavior. Molecular dynamics (MD) simulations were performed under varying surface polarization, focusing on interaction energies, species distribution, capacitance, and projected energy density. Capacitance values ranged from 2.30 to 2.55 μF/cm², while energy densities varied between 5.03 and 5.58 J/g, depending on electrolyte composition. The results show that smal

SUBMITTER: Silva LS 

PROVIDER: S-EPMC12464776 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature