Additives to disturb LiMn0.8Fe0.2PO4 growth and their influence on performance

In this work, nano -LiMn 0.8 Fe 0.2 PO 4 /C is synthesized via dimethyl sulfoxide-assisted co-precipitation route, and various additives are introduced to disturb the phosphate crystal growth. Among the investigated systems, introducing beta-cyclodextrin and ascorbic acid decreases the surface area of the prepared samples, whereas involving hexadecyltrimethyl ammonium bromide (CTAB) effectively diminishes the particle size of LiMn 0.8 Fe 0.2 PO 4 . Due to the reduced diffusion length and augmented active area, samples from systems containing CTAB exhibited improved electrochemical performance, 155 mAh g −1 at 0.05 C and 120 mAh g −1 at 5 C, relative to the control sample (152 and 114 mAh g −1 at 0.05 and 5 C). Our results indicate that the LiMnPO 4 kinetics could be tailored using appropriate additives.