The LiFePO4/C composite and LiNi1/3Co1/3Mn1/3O2 were synthesized by rheological phase assisted with carbon thermal reduction method and carbonate co-precipitation method respectively. Then the two materials were fully blended by powerful stirring, and the effect of blending ratio on the electrochemical performance of the blended material were studied via galvanostatic charge/discharge measurement and electrochemical impedance spectroscopy (EIS) at room temperature. The results showed that the electrochemical performances (include rate performance, stability performance, higher discharge and higher specific energy) of the mixed electrode were improved effectively due to the synergy effect between LiFePO4 and LiNi1/3Co1/3Mn1/3O2 after blending.
Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences,Xinjiang Key Laboratories of Electronic Information Materials and Devices, Urumqi, Xinjiang 830011, China
Dou Jun-Qing,Kang Xue-Ya,Wumair Tuerdi,et al. Effect of LiFePO_4/LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 blended cathode material on the performance of Li-ion batteries[J]. Journal of Functional Materials,2012,43(9):1160-1163.