Effect of magnetic treatment on microstructure and cycle performance of LiFePO4/C cathode material
Data(s) |
15/12/2014
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Resumo |
LiFePO4/C composite was prepared by hydrothermal synthesis along with a magnetic treatment method. The LiFePO4/C composite synthesized without magnetic treatment is an integrated rhombic shape crystal, whereas the LiFePO4/C material synthesized with magnetic treatment presents a rhombus shape which is self-assembled by a number of small crystal particles with an average size of about 100 nms. The capacity retention for the LiFePO4/C cathode material synthesized without magnetic treatment is only 77% after 30 charge-discharge cycles at 0.2 C, but the LiFePO4/C composite synthesized with magnetic treatment has a capacity retention of 100% after 100 charge-discharge cycles at 1 C and 5 C. It suggests that magnetic treatment can remove Fe3+ cations effectively during the preparation process and enhance the cycle performance of the LiFePO4/C material. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier BV |
Relação |
http://dro.deakin.edu.au/eserv/DU:30067695/kong-effectofmagnetic-2014.pdf http://www.dx.doi.org/10.1016/j.matlet.2014.09.064 |
Direitos |
2014, Elsevier BV |
Palavras-Chave | #Capacity retention #Composite materials #Energy storage and conversion #LiFePO4 #Magnet treatment |
Tipo |
Journal Article |