Deakin University
Browse

File(s) under permanent embargo

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

Version 2 2024-06-04, 02:37
Version 1 2014-11-24, 17:01
journal contribution
posted on 2024-06-04, 02:37 authored by Y Qiao, L Pan, P Jia, H Wang, Lingxue KongLingxue Kong, W Gao, X Wang
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.

History

Journal

Materials letters

Volume

137

Pagination

432-434

Location

Amsterdam, Netherlands

ISSN

0167-577X

Language

eng

Publication classification

C Journal article, C1 Refereed article in a scholarly journal

Copyright notice

2014, Elsevier BV

Publisher

Elsevier BV