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Huang, Bin,Liu, Suqin,Li, Hongliang,Zhuang, Shuxin,Fang, Dong Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.7
To improve the performance of $LiFePO_4F$, a novel sol-gel process is developed. For comparison, ceramic process is also implemented. From X-ray diffraction results we know that each sample adopts a triclinic $P{\bar{1}}$ space group, and they are isostructural with amblygonite and tavorite. The scanning electron microscope images show that the homogeneous grains with the dimension of 300-500 nm is obtained by the sol-gel process; meanwhile the sample particles obtained by ceramic process are as big as 1000-3000 nm. By galvanostatic tests and at electrochemical impedance spectroscopy method, the sample obtained by sol-gel process presents better electrochemical properties than the one obtained by ceramic process.
Comparative Study and Electrochemical Properties of LiFePO4F Synthesized by Different Routes
Bin Huang,Suqin Liu,Hongliang Li,Shuxin Zhuang,Dong Fang 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.7
To improve the performance of LiFePO4F, a novel sol-gel process is developed. For comparison, ceramic process is also implemented. From X-ray diffraction results we know that each sample adopts a triclinic P1 space group, and they are isostructural with amblygonite and tavorite. The scanning electron microscope images show that the homogeneous grains with the dimension of 300-500 nm is obtained by the sol-gel process; meanwhile the sample particles obtained by ceramic process are as big as 1000-3000 nm. By galvanostatic tests and at electrochemical impedance spectroscopy method, the sample obtained by sol-gel process presents better electrochemical properties than the one obtained by ceramic process.