For the discharging process of modeled Li-Sulfur full cells, typically, constant current (CC stage) and constant voltage (CV stage) protocols are utilized for this discharging process. During the CC discharging stage, Li ions migrate/diffuse from the Li metal anode into sulfur cathode; for the CV holding stage, Li ions mainly diffuse from the Li metal anode into sulfur cathode. During this CV stage, overpotential within electrodes and liquid electrolyte are decreased. Thus, the CC stage exhibits a much higher efficiency for energy conversion. In our study, for various charging/discharging rates, we utilize this CCCV protocol and ensure the total time satisfies the related C rates. In this study, for the same Li-Sulfur cell, the discharging rates are increased from 0.2C (300 minutes) to 0.5C (120 minutes), 1C(60 minutes), 2C(30 minutes), 4C (15 minutes), and 6C (10 minutes).