LiFePO4/C composite with micro/nano structure was synthesized via controlled crystallization-dry mixing-carbon thermal reduction method. As prepared micro/nano LiFePO4/C composite show both excellent high-rate performance and high tap density as the cathode for lithium ion batteries. The tap density is 1.39 g·cm-3 while the discharge specific capacities of 148.9, 145.3, 143.3 and 132.6 mAh·g-1 are achieved at rates of 1 C, 2 C, 5 C and 10 C, respectively. This as-prepared micro/nano LiFePO4/C composite material is suitable for large-scale application, such as electric vehicles and plug-in hybrid electric vehicles.
LiFePO4; micro/nano; cathode
This work is supported by Natural Science Foundation of Shandong Province (Grant No.ZR2013BM023), Shandong Province Excellent Young Scientist Research Award Fund (Grant No.BS2012NJ010) and Jinan science and technology development plan (201402023).
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