Determination of phosphorus content in LiFePO4 by improved gravimetric method

被引:3
|
作者
Xie, Y. H. [1 ]
Yu, H. J. [1 ,2 ]
Ou, Y. N. [1 ]
Li, C. D. [1 ,2 ]
机构
[1] Guangdong Brunp Recycling Technol Co Ltd, Foshan 528244, Guangdong, Peoples R China
[2] Guangdong Tract Battery & Elect Vehicle Recyclin, Foshan 528244, Peoples R China
关键词
Gravimetric method; Lithium iron phosphate; Determination; Phosphorus; Polyethylene glycol; PHOSPHATES;
D O I
10.1179/1432891714Z.0000000001295
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The determination of phosphorus content in LiFePO4 by the quinoline phosphomolybdate gravimetric method in the presence of polyethylene glycol was investigated. The diameter of precipitation particles (D10) increased from 2.34 to 18.52 mu m when the polyethylene glycol was added, so the particles cannot pass through the G(4) crucible filter plate. The precision of this method for the determination of phosphorus in LiFePO4 is 0.08-0.13% which is three times higher than that of traditional method, and the recovery of standard addition was 99.76-100.24%.
引用
收藏
页码:1285 / 1288
页数:4
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