Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1613558 | Journal of Alloys and Compounds | 2013 | 6 Pages |
Abstract
Li(FeM)PO4/C (M = Mg, Al, Zn and Mn) cathode material for lithium ion batteries is prepared by using converter sludge as a raw material through a sustainable wet chemistry method. The valuable elements (Fe, Mg, Al, Zn and Mn) are recovered from converter sludge through acidolysis process, and used as source materials of Fe and dopants for preparing Li(FeM)PO4/C. XRD and SEM analyses show that the obtained Li(FeM)PO4/C delivers single olivine-type phase with higher crystallinity, and presents a fine particle size less than 100 nm and a homogeneous elemental distribution in its contexture. Especially, Li(FeM)PO4/C prepared from the sludge gives outstanding capacity of 157, 154, 143, 127 and 118 mA h gâ1 at a current density of 15, 75, 150, 300 and 750 mA gâ1, respectively, and exhibits excellent cycling performance. The results demonstrate that a novel route to synthesize Li(FeM)PO4/C cathode material for lithium ion batteries by utilizing converter sludge as a abundant and inexpensive source of iron and dopants has been proposed.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhong-Fang Zhang, Zhao-Jin Wu, Shi-Huai Su, Zhi-Fang Gao, Liao-Sha Li, Xing-Rong Wu,