Nanocrystalline LiMnPO4/C cathode material was successfully prepared by the solution combustion method using Urea, Glycine, Starch and PEG-10000 as fuel agents and Starch as carbon-coating source. The as-prepared samples are characterized XRD, SEM, TEM and Raman spectroscopy. According to X-ray diffraction results, all synthesized materials adopt the same olivine structure, suggesting that fuel sources have no effect on the phase purity, however, it can affect the electrochemical performances. The investigation reveals that LiMnPO4/C material obtained with glycine, as fuel source, has a smaller crystallite size and a lower microstrain value than the other samples. The electrochemical impedance spectroscopy confirms that glycine use as a fuel agent can decrease the charge transfer resistance and enhances the lithium ion diffusion. The initial discharge capacity can reach up to 127 mAh g(-1) at 0.05 C between 2.5 and 4.5 V, with a coulombic efficiency of about 82%. The results suggest that fuel choice is a crucial parameter in order to improve the performance of LiMnPO4 cathode material. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.