Figure 1: Cycle performance and ICP-AAS.

(a) Cycle performance of Li/LiMn₂O₄ half-cell (black curve) and concentration of Mn deposited on Li anodes harvested after different charge–discharge cycles (red curve). (b) Cycle performance of coin cells with LiMn₂O₄ cathodes versus anodes with different Li-intercalation potentials.