The effect of using nano-bubble water as a solvent on the properties of lithium iron manganese phosphate prepared by solvothermal method

Abstract Using ethylene glycol (EG) and nano-bubble water (NBW) containing Ar-H2 gas as a mixed solvent, nano-LiFe0.5Mn0.5PO4 is prepared by the solvothermal method. The nanobubbles with sufficient specific surface energy effectively prevent the agglomeration of nanoparticles and homogenize the size of microscopic particles. Meanwhile, the presence of Ar-H2 acts as an antioxidant. XRD, FTIR, and SEM analyses confirm the composition and morphology of the synthesized material. Assembling the prepared material (LFMP@C) into a battery and conduct a charge-discharge test at 1 C, the results show that the specific discharge capacity of LFMP@C is 12.8% higher than that of the control group (LFMP-‍VC@C) using ascorbic acid as an antioxidant, and 53% higher than that of the control group (LFMP-‍n@C) without using antioxidant.