| 摘要 |
A preparation method of a battery composite material, which at least comprises the steps: providing an iron compound, phosphoric acid, a manganese compound, a lithium compound and a carbon source; mixing and stirring the iron compound with deionized water, then adding the phosphoric acid to the mixture and stirring to form a first phosphoric acid solution, and adding to the first phosphoric acid solution a first fixed amount of the manganese compound to cause the manganese compound to continuously react with the first phosphoric acid solution for a first period of time, finally forming a first product solution; generating a precursor through the reaction of at least the first product solution, the carbon source and the lithium compound; and thermally treating the precursor to generate the battery composite material having a chemical formula of LiFexMn1-xPO4, wherein x is larger than 0; the battery composite material is capable of avoiding the aggregation effect of finished powders in the process of thermal treatment, further improving the electrical performance of the battery. |
