Insight into the origin of lithium/nickel ions exchange in layered Li(NixMnyCoz)O2 cathode materials

Li/Ni exchange ratios in series of LiNixMnyCozO2 materials are precisely determined for the first time through high resolution neutron diffraction experiments. Based on the correlated relation between Li/Ni exchange ratio and strengthen of magnetic frustration, we argue that Li/Ni exchange can act as an effective way to release the frustration in LiNixMnyCozO2.210