Two approaches were taken to prepare spinel materials using the leached solution: recovery of the LMO or synthesis of LMNO. For recovery of the LMO, the solution was dried on a hotplate before being put into an oven at 200 °C for 4 hours. The remaining residue was ground by hand in a pestle and mortar and placed into an alumina crucible covered by a lid. This crucible was then put into a furnace at 700 °C for 6 hours.