| 摘要 |
PURPOSE: A manufacturing method of anodic active material is provided to lower manufacturing cost of lithium anodic active material with a superior physical property. CONSTITUTION: A manufacturing method of anodic active material comprises the following stages: mixing waste acid including FeCl2 or FeSO4 which are created after acid cleaning, lithium-containing material liquid, and P-containing material liquid; manufacturing powders which are represented by chemical formula 1 by spraying the mixture in a spray-baking furnace; and heat-treating the powder. The chemical formula 1 is same as the follow : Li aFe (1-b) M cPO 4. In the chemical formula 1, 0.8 <= a <= 1.1, 0 <= b <= 0.2, 0 <=c <= 0.1, a + c= b. M is Cr, Ni, Co, Mn or a combination thereof. |
