本文以壳聚糖单体为碳源兼凝胶剂，利用溶胶-凝胶煅烧合成了锂离子电池LiFePO₄/C正极材料，使用XRD和SEM对合成的材料进行表征. 用恒电流充放电测试了LiFePO₄/C电极的电化学性能，当壳聚糖单体与LiFePO4摩尔比为1:1.2时，600 ^oC煅烧的LiFePO4/C电极性能最佳，其粒径分布均匀（200 ～ 400 nm），该电极0.2C倍率放电比容量为155 mAh.g^-1，30周期循环放电比容量仍保持152 mAh.g^-1，库仑效率为97.9 %.

The LiFePO₄/C cathode materials for Li-ion battery were synthesized by sol-gel and calcining method using chitosan monomer as a carbon source and a gelating agent. The structures and morphologies were characterized by X-ray diffraction spectroscopy (XRD) and scanning electron microscopy (SEM). The electrochemical performance was investigated by the galvanostatic charge–discharge test. When the molar ratios between chitosan monomer and LiFePO₄ were 1:1.2, the LiFePO₄/C cathode calcined at 600 ^oC showed the best performance. The particle sizes ranged 200 ～ 400 nm. The initial discharge capacity of 155 mAh.g-¹ was achieved at room temperature with discharge rate of 0.2C, while the capacity of 152 mAh.g^-1 could be maintained after 30 charge-discharge cycles. The coulombic efficiency was 97.9%.