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磷酸铁锂正极材料改性研究进展
冯晓晗1(), 孙杰1,2(), 何健豪2, 魏义华2, 周成冈1(), 孙睿敏1()
Research progress in LiFePO4 cathode material modification
Xiaohan FENG1(), Jie SUN1,2(), Jianhao HE2, Yihua WEI2, Chenggang ZHOU1(), Ruimin SUN1()

图5. (a) Cl-LFP/C和LFP/C电极材料在0.1 C时的首圈充放电曲线；(b) LFP/C；(c) Cl-LFP/C在不同电流密度下的放电曲线；(d) Cl-LFP/C正极材料和LFP/C正极材料的倍率性能；(e) Cl-LFP/C和LFP/C正极材料分别在0.1 C和10 C电流密度下的循环性能[28]；(f) 未掺杂和掺杂F的LiFePO4/C样品在0.1 C倍率下的初始充放电曲线；(g) LiFePO4/C和LiFePO4-xFx/C(x=0.15)样品在0.1 C倍率下的初始充/放电曲线；(h) 未掺杂和掺杂F的LiFePO4/C样品的倍率和循环性能；(i) LiFePO4-xFx/C(x = 0.15)样品在20 C、30 C高倍率下的循环性能[29]

Fig. 5. (a) First charge/discharge curves of Cl-doped LFP/C and LFP/C electrodes at 0.1 C; discharge curves of different current density: (b) LFP/C; (c) Cl-doped LFP/C; (d) rate ability of LFP/C and Cl-doped LFP/C; (e) cycling performance of Cl-doped LFP/C and LFP/C at 0.1 C and 10 C, respectively[28]; (f) initial charge/discharge curves of undoped and F-doped LiFePO4/C samples at 0.1 C rate; (g) initial charge/discharge curves of LiFePO4/C and LiFePO4-xFx/C (x = 0.15) samples at 0.1C rate, (h) rate and cycle performances of undoped and F-doped LiFePO4/C samples; i) cycle performances of LiFePO4-xFx/C (x = 0.15) sample at high-rate 20 C, 30 C[29]