Self discharge of freshly made NMC half cells and voltage stabilizes at 3.3-3.5 V vs Li/Li+ during charging. What can affect it?

I am making Li half cells using NMC as cathode. The OCV is around 3 V but it self discharges and during charging the voltage increases to 3.5 V and then drops to 3.3-3.4 V and stays there. I have...

24 June 2024 721 3 View