Meanwhile, due to larger inhomogeneity of electrochemical reactions under increasing discharging rates, the voltage within the Li-Sulfur full cells shows a non-uniform distribution. Generally, for the sulfur cathode, higher voltage occurs during the discharging process for regions far away from the alumina current collector, while regions closer to the alumina current collector exhibit smaller voltage. This is due to the fact that fast electrochemical reactions within regions far away from the current collector as electrons are much faster; thus, Li ions are faster to get deintercalated within this region. Therefore, accompanied by electrochemical reactions, the voltage within this region is higher than in other regions. Furthermore, for the Li metal anode, it generally exhibits a relatively homogeneous voltage distribution as Li metal has much higher electron conductivity and uniform electrochemical reactions, thus a more uniform voltage distribution within Li metal anode than sulfur cathode. Meanwhile, as clearly seen from Figure , as the discharging rates increases from 0.2 C, to 1C, 2C, 4C and 6C, extracted capacity drops greatly. This is mainly due to limited Li + diffusion capability within sulfur cathode and liquid electrolyte and higher polarization/overpotential occur. This large polarization/overpotential reduce greatly the effective discharging time within the Li-S full cell and leads to the reduced capacity. At the same time, it is seen that the voltage drop within the sulfur cathode is much higher than that within the liquid electrolyte. And we believe this phenomena is mainly due to the slower Li + diffusion capability within sulfur electrode than that of liquid electrolyte. While liquid electrolyte possesses much higher Li + diffusion capability than sulfur electrode, the Li + diffusion coefficient within liquid electrolyte is still slower than that within Li metal anode. Given this fact, under increasing discharging rates, higher polarization/overpotential occurs within liquid electrolyte. This is clearly seen from Figure : under slowest discharging rate, the voltage drop within liquid electrolyte is about 0.02 V while for the fastest discharging rate of 6C, the voltage drop increases greatly to 0.16 V. During the discharging process, the voltage range is set within a fixed interval, and larger voltage change within liquid electrolyte will reduce the available voltage range for the effective discharging process and thus leads to greatly reduced capacity under higher discharging rates.