Structure and electrochemistry of scaling nano C-LiFePO4 synthesized by hydrothermal route: Complexing agent effect

► Nanosized LiFePO4 was prepared by the hydrothermal route assisted by the citric acid at 185 °C. ► Optimum Fe/acid = 7 wt% provides samples with good crystallinity and free Li-Fe antisite defect. ► The C-LiFePO4 product has a capacity retention of 160 mAh/g.