Fabrication and Electrochemical Performance of LiFePO4/C as Cathode Material for Lithium Ion Battery

摘要

The research for cheap and abundant LiFeP04/C as cathode material of lithium-ion battery became a trending topic in this century. LiFePO₄/C particles were commonly used due to its environmental acceptability. This research was aimed to compare methods for preparing LiFePO₄/C particles using solid state and flame assisted spray pyrolysis method. The variable of studied at variation molar ratio Li: Fe: P of 1: 1:1 1.1:1:1: 1.2:1:1; and 1.3: 1: 1. The crystalline structure was characterized by X-Ray Diffraction (XRD). The morphology was characterized using SEM test. The electrochemical performance was characterized using battery analyzer. Based on data, still exhibits some impurities. The particle still in micron-sized. The highest initial discharge capacity at molar ratio Li: Fe: P of 1.1:1:1 is 46.1 mAh g^-1 at 1/20 C.