This is an example electrical model of a generic Li-Ion cell.
After stopping charging a cell, we expect a high voltage that slowly decays down to the OCV.
After stopping discharging a cell, we expect a low voltage that slowly decays up to the OCV.
The question is, right after stopping charging/discharging for example, can we apply a known current flow in opposite direction for a predetermined duration to rapidly bring the cell back to equilibrium & be able to measure OCV at the terminals? (instead of waiting for hours)
If this is possible, is it possible to work out the required opposite current and time reliably for a ?