Effect of gelatin concentration on the synthetize of the LiFePO4/C composite for lithium ion batteries
2014
Abstract Gelatin is an effective additive of the cathode, which would regulate and control the crystal and morphology of LiFePO 4 /C composite for enhancing electrochemical performance of the lithium ion battery. The influence of gelatin concentration on the preparation of LiFePO 4 /C composite has been investigated. It is observed by SEM that the shape transformed from sphere-like to rod-like structure with the gelatin concentration increased from 1 wt.% to 5 wt.%; meanwhile, the lattice parameters first showed increase trend and then decrease. The LiFePO 4 /C composite obtained with the 2 wt.% gelatin solution shows the lowest polarization and excellent rate performance.
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