
Anode Symmetric Cells for Battery Capacity Loss Analysis: A Step-by-Step Guide 2026
Insights from “Lithium Battery Frontier” – 锂电前沿 Abstract: Anode symmetric cells were assembled using two identical electrodes, one in a lithium state and another one in a delithiated or pristine state. The charging-discharging regime of graphite symmetric cells were studied. And the electrochemical impedance spectrum of different state of charge(SOC)was also analyzed. A sloping curve from -1 V to 0.5 V was only observed during the first charging curve of the 100% SOC-Pristine graphite symmetric cell. The voltage platform was suggested to the formation of SEI layer in the pristine graphite surface. The impedance of symmetric cell in 0% SOC and 100% SOC reached the maximum. While the impedance achieved





