Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7990320 | Journal of Alloys and Compounds | 2018 | 35 Pages |
Abstract
Uniform, flower-like Li3V2(PO4)3/C composites were successfully synthesized using a novel, seed-induced method and were then directly applied as a cathode in lithium-ion batteries. The morphology, structure and electrochemical properties of these novel composites were examined using X-ray diffraction, scanning electron microscopy and galvanostatic charge-discharge tests. The uniform, flower-like Li3V2(PO4)3/C composites were produced on stainless steel and titanium foil substrates, but the morphology of the flowers depended on the type of substrate and the method of immersion. The Li3V2(PO4)3/C composites grown on the stainless-steel substrate exhibited the best electrochemical performance with a specific capacity of 115â¯mAh gâ1 at the 15â¯C rate and a capacity retention of 94% after 500 cycles. This remarkable electrochemical performance was attributed to the formation of the perfect flower-like structure and abundance of pores in the composite. The seed-induced method proved to be a promising approach for preparing electrode materials for use in lithium ion batteries.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yonghai Li, Kaixiong Xiang, Wei Zhou, Yirong Zhu, Li Xiao, Xianhong Chen, Han Chen,