Run the Cyclic Charge-Discharge standard technique by selecting Experiment>Electrochemical Energy>Cyclic Charge Discharge from the Framework™ menu bar.
NOTE: Based on your input, the sequence may change slightly. Options include starting with a charge step or discharge step; if Electrochemical Impedance Spectroscopy is available, you can add interleaved EIS scans. For this description, we assume that no EIS scans are done, and that the first step is a charge step.
This initiates the following sequence of events:
After you click the OK button, a second dialog box is displayed, containing additional parameters.
The charge begins. Readings are taken at fixed time-intervals during the charge. The charge runs until either a stop criterion is met or until the maximum time specified in the setup parameters step. A plot of voltage and current versus time is displayed during the charge.
If you specified a subsequent Voltage Finish in the setup parameters, a potentiostatic hold (performed galvanostatically with a software feedback loop) is performed. This hold runs until either the current falls below a specified level, or for a user-specified maximum amount of time.
The data are displayed on the same voltage and current plot.
The discharge begins. Readings are taken at fixed time intervals during the discharge. The discharge runs until either a stop criterion is met or until the maximum time specified in the setup parameters step.
A plot of voltage and current versus time is displayed during the discharge.
The data for the capacity curve are now calculated. Both a charge and a discharge capacity are calculated.
A summary plot of cycle number versus charge capacity and discharge capacity is displayed.
While neither the maximum number of cycles specified in the setup parameters step nor the loop stop at criteria are met, the sequence repeats beginning at step 7. If either the cycles or loop criterion is met, the sequence moves to step 12.