采用溶胶-凝胶法制备了LiFePO4.研究了聚乙二醇对LiFePO4材料形貌和电化学性能的影响.结果表明,添加聚乙二醇制备的材料具有更小的粒径,更大的比表面积;该材料以0.2C、1C、5C、10C的倍率放电,首次放电比容量分别达到143.9mAh/g、133.4mAh/g、124.2mAh/g、ll2.7mAh/g,比没添加聚乙二醇制备的材料具有更好的倍率性能.
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