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LiMnPO_4 /C composites were synthesized via solid-state reaction with different carbon sources: sucrose, citric acid and oxalic acid. The sam- ples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical performance test. The results of XRD reveal that carbon coating has no effect on the phase of LiMnPO_4 . The LiMnPO_4 /C synthesized at 600 °C with citric acid as carbon source shows an initial discharge capacity of 117.8 mA·hg~-1 at 0.05 C rate. After 30 cycles, the capacity remains 98.2 mAh·g~-1 . The improved electrochemical properties of LiMnPO_4 /C is attributed to the decomposition of organic acid during the sintering process.
LiMnPO_4 / C composites were synthesized via solid-state reaction with different carbon sources: sucrose, citric acid and oxalic acid. The sam- ples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical performance test. The results of XRD reveal that carbon coating has no effect on the phase of LiMnPO_4. The LiMnPO_4 / C synthesized at 600 ° C with citric acid as carbon source shows an initial discharge capacity of 117.8 mA · hg ~ -1 at 0.05 C rate. After 30 cycles, the capacity remains 98.2 mAh · g ~ -1. The improved electrochemical properties of LiMnPO_4 / C is attributed to the decomposition of organic acid during the sintering process.