| 摘要 |
A preparation method of olivine Li<SUB>1+x</SUB>Fe<SUB>1+y</SUB>PO<SUB>4 </SUB>is disclosed, wherein -0.2<=x<=0.2 and -0.2<=y<=0.2, which includes the following steps: (A) adding iron powder, lithium salt, and phosphate into an acid solution to form a mixture, wherein the molar ratio of Li<SUP>+</SUP>:Fe<SUP>2+</SUP>:PO<SUB>4</SUB><SUP>3-</SUP> is 1+x:1+y:y; (B) stirring the mixture; (C) drying the mixture to obtain solid precursor powder; and (D) heating the precursor solid powder at a temperature over 500° C. to form olivine structured powders. |
