中文摘要：

通过X射线衍射光谱法（XRD）及正交实验方法考察电极膜中活性物质的颗粒大小、粘结剂含量、导电剂含量和充放电电流密度对LiFePO4电化学性能的影响。分析结果表明，采用正交实验方法获得LiFePO4电极膜的最佳组成为：粘结剂质量相对百分含量为5％，导电剂质量相对百分含量为20％。活性物质颗粒度小于0．038mm。

英文摘要：

The influences of granularity, binder content, conductor content, and charge-discharge current density of active materials on the electrochemical properties of LiFePO4 for lithium-ion battery were studied by X-ray diffraction （XRD） and orthogonal experiment. The excellent technical conditions were obtained by using range analysis through orthogonal experiment. The results show that the optimum technical conditions are： active materials granularity is ≤ 0.038 mm, the mass of binder is 5%, and the mass of conductor is 20%.