Lithium Storage in Carbon-coated Zinc Iron Oxides as Anode Materials for Lithium-Ion Batteries

作者:Wang, Huan-Huan; Jin, Bo*; Li, Lin-Lin; Lang, Xing-You; Yang, Chun-Cheng; Gao, Wang; Zhu, Yong-Fu; Wen, Zi*; Jiang, Qing
来源:Energy Technology, 2017, 5(4): 611-615.
DOI:10.1002/ente.201600404

摘要

Carbon-coated zinc iron oxides (ZnFe2O4/C) are synthesized by a hydrothermal method and subsequent calcination at three different temperatures. X-ray diffraction and transmission electron microscopy indicate that the spherical ZnFe2O4/C samples are well-crystallized and that an amorphous layer of carbon, derived from thermal decomposition of glucose, is deposited on the surface of the ZnFe2O4 samples. The testing results demonstrate that ZnFe2O4/C sintered at 600 degrees C shows a high reversible capacity of 579mAhg(-1) at a current density of 100mAg(-1) after 100cycles and good rate capability. This indicates the potential use of ZnFe2O4/C as anode materials for lithium-ion batteries.