Battery knowledge · Charging and discharging

Memory effect

A loss of usable capacity in nickel–cadmium cells repeatedly recharged from the same partial state. Lithium-ion cells do not show it in any practical sense, though LFP has a small related voltage memory.

Example

Charging and discharging: an example situation

The same CC–CV law can operate overnight or during a short depot stop.

Read Memory effect alongside LFP in this context. A positive electrode material, LiFePO₄, giving cells a nominal voltage around 3.2 V, long cycle life and good thermal stability, but less energy per kilogram than nickel-rich oxides. Its flat voltage curve makes state of charge hard to read from voltage alone.

Use in Lemonergy

Separate regulation from availability.

This is a reference concept. No executable Lemonergy block has been verified for this term.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

  1. Lithium-ion battery fast charging: A review

    Anna Tomaszewska et al. · eTransportation · 2019

    Topic background · CC-CV and alternative charging protocols, transport limitations, degradation and thermal implications; results depend on cell and test conditions. Software behavior is documented separately in Lemonergy block references.