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Effect of magnetic treatment on microstructure and cycle performance of LiFePO4/C cathode material

Qiao,Y, Pan,L, Jia,P, Wang,H, Kong,L, Gao,W and Wang,X 2014, Effect of magnetic treatment on microstructure and cycle performance of LiFePO4/C cathode material, Materials letters, vol. 137, pp. 432-434, doi: 10.1016/j.matlet.2014.09.064.

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Title Effect of magnetic treatment on microstructure and cycle performance of LiFePO4/C cathode material
Author(s) Qiao,Y
Pan,L
Jia,P
Wang,H
Kong,LORCID iD for Kong,L orcid.org/0000-0001-6219-3897
Gao,W
Wang,X
Journal name Materials letters
Volume number 137
Start page 432
End page 434
Publisher Elsevier BV
Place of publication Amsterdam, Netherlands
Publication date 2014-12-15
ISSN 0167-577X
Keyword(s) Capacity retention
Composite materials
Energy storage and conversion
LiFePO4
Magnet treatment
Summary 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.
Language eng
DOI 10.1016/j.matlet.2014.09.064
Field of Research 030604 Electrochemistry
091205 Functional Materials
100708 Nanomaterials
Socio Economic Objective 850601 Energy Services and Utilities
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier BV
Persistent URL http://hdl.handle.net/10536/DRO/DU:30067695

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Mon, 24 Nov 2014, 16:01:46 EST

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