Figure 6

Evolution of D_Li as a function of lithium content in olivine samples: (a) LiFePO₄; (b) LiMn_0.1Fe_0.9PO₄; (c) LiMn_0.2Fe_0.8PO₄ and (d) LiMn_0.3Fe_0.7PO₄. These figures have been presented using OriginLab Software, ver.6.0 (https://www.originlab.com).