There is widespread interest in the development of lithium-ion batteries (LIBs) for rechargeable applications, as they currently offer the highest energy density (amount of charge stored per gram) of all commercial rechargeable batteries. LiFePO4 is an increasingly important battery cathode material, and is already in use in some portable devices, although there is ongoing research to further improve its performance at high discharge rates. We have synthesised LiFePO4 using a continuous process, which is capable of producing nanomaterials on a kg/h scale. We have also made V- and Nb- doped variants which show improved electrochemical performance. µSR would allow us to compare the Li diffusion in our mass-produced material compared to smaller-scale syntheses in literature. We also expect to see enhanced Li diffusion in our doped samples.