Reply To: About Voltage curve in my battery simulation

[Murari Iyengar]

The issue you're experiencing might be related to the experimental discharge period being too short, resulting in insufficient data to fit the curves. This could be due to a unit problem or an insufficient number of experimental data points. To have a meaningful discharge curve, the time period should cover a good portion of the Depth of Discharge (DOD) range. A good rule of thumb is to cover at least 80% of the depth of discharge curve at each charge rate (C-rate). If the battery is assumed to discharge to DOD=0.2, for instance, the sample period for C-rate=0.1 should be 0.8*3600/0.1 seconds, and for C-rate=1, it should be 0.8*3600 seconds. Note that the unit of time in the tool is always in seconds, so all discharge data should obey this convention. What do your curves look like?