发明名称 |
METHOD FOR PREPARING LITHIUM METAL PHOSPHOR OXIDE |
摘要 |
The present invention relates to a method for preparing a lithium metal phosphor oxide, the method including: mixing an iron salt solution and a phosphate solution in a reactor; applying a shearing force to the mixed solution in the reactor during the mixing to form a suspension containing nano-sized iron phosphate precipitate particles; obtaining the nano-sized iron phosphate particles from the suspension; and mixing the iron phosphate with a lithium raw material and performing firing, and the lithium metal phosphor oxide according to the present invention has an Equation of LiMnFePO4. Herein, M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, and Mg, and n is in a range of 0 to 1. According to the present invention, since calcination is performed at a temperature that is lower than that of another existing method, there is an effect of reducing a process cost, and the obtained lithium metal phosphor oxide prepared according to the method of the present invention has an olivine structure type. |
申请公布号 |
US2015210546(A1) |
申请公布日期 |
2015.07.30 |
申请号 |
US201314419289 |
申请日期 |
2013.05.10 |
申请人 |
SAMSUNG FINE CHEMICALS CO., LTD |
发明人 |
Song Hyun A;Chang Dong Gyu;Yang Woo Young |
分类号 |
C01B25/45 |
主分类号 |
C01B25/45 |
代理机构 |
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代理人 |
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主权项 |
1. A method for preparing a lithium metal phosphor oxide having a structure of the following Equation I, the method comprising:
mixing an iron salt solution and a phosphate solution in a reactor; applying a shearing force to the mixed solution in the reactor during the mixing to form a suspension containing nano-sized iron phosphate precipitate particles; obtaining the nano-sized iron phosphate particles from the suspension; and mixing the iron phosphate with a lithium raw material and performing firing:
LiMnFePO4 Equation I where M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, and Mg, and n is in a range of 0 to 1. |
地址 |
Ulsan KR |