Nickel–cadmium and nickel–metal hydride batteries exhibit memory effects but lithium-ion batteries are widely believed to have none. Now, a memory effect for LiFePO4 positive electrodes that appears after only one cycle of partial charge and discharge is reported. This observation is important as the slight voltage change that it causes can lead to substantial erroneous estimation of the state of charge of batteries.
- Tsuyoshi Sasaki
- Yoshio Ukyo
- Petr Novák