Discharged upto 180 mAh g -1 Table Co-O bond distances of La2Ni0.75Co0.25O4.08 at different charging/discharging conditions. Errors are in the order of +/-0.06-0.11 for the equatorial (eq.) and of +/-0.10-0.18 for the apical (ap.) bond distances. Therefore, the determined trend is more robust than the absolute values. The errors are higher than for the Ni-O distances and could not be determined reliably. Therefore, the determined trend is more robust than the absolute values.