Browse > Article
http://dx.doi.org/10.4313/TEEM.2012.13.3.121

Electrochemical Performance of Lithium Iron Phosphate by Adding Graphite Nanofiber for Lithium Ion Batteries  

Wang, Wan Lin (Department of Electrical Engineering, Chonnam National University)
Jin, En Mei (Department of Electrical Engineering, Chonnam National University)
Gu, Hal-Bon (Department of Electrical Engineering, Chonnam National University)
Publication Information
Transactions on Electrical and Electronic Materials / v.13, no.3, 2012 , pp. 121-124 More about this Journal
Abstract
Olivine type $LiFePO_4$ cathode material was synthesized by solid-state reaction method including one-step heat treatment. To improve the electrochemical characteristics, graphite nanofiber (GNF) was added into $LiFePO_4$ cathode material. The structure and morphological performance of $LiFePO_4$ were investigated by X-ray diffraction (XRD); and a field emission-scanning electron microscope (FE-SEM). The synthesized $LiFePO_4$ has an olivine structure with no impurity, and the average particle size of $LiFePO_4$ is about 200~300 nm. With graphite nanofiber added, the discharge capacity increased from 113.43 mAh/g to 155.63 mAh/g at a current density of 0.1 $mA/cm^2$. The resistance was also significantly decreased by the added graphite nanofiber.
Keywords
$LiFePO_4$; Solid-state; Graphite Nanofiber;
Citations & Related Records
연도 인용수 순위
  • Reference
1 YAMADA A, CHUNG S C, HINOKUMA K. J Electrochem Soc, 2001, 148(3): A224-A229 [DOI: http://dx.doi.org/10.1149/1.13482 57]   DOI   ScienceOn
2 CHO T H, CHUNG H. J Power Sources, 2004, 133(2): 272-276 [DOI: http://dx.doi.org/10.1016/j.jpowsour.2004.02.015].   DOI   ScienceOn
3 CHUNG S Y, BLOCKING J T, CHIANG Y M. Nature Mater, 2002, 2: 123-128 [DOI: http://dx.doi.org/10.1038/nmat732].
4 MI C H, ZHANG X G, ZHAO X B, LI H L. Materials Science & Engineering, 2006, 129: 8-13 [DOI: http://dx.doi.org/10.1016/j.mseb.2005.11.015].   DOI   ScienceOn
5 SLI G H, KUDO Y, LIU K Y, AZUMA H, TOHDA M. J Electrochem Soc, 2002, 149(11): A1414-A1418 [DOI: http://dx.doi.org/10.1149/1.1510768].   DOI   ScienceOn
6 Xinlu Li, Feiyu Kang, Xinde Bai, Wanci Shen, Electrochemistry Communications 9 (2007) 663-666 [DOI: http://dx.doi.org/10.1016/j.elecom.2006.10.050].   DOI   ScienceOn
7 Li Wang, Haibo Wang, Zhihong Liu, Chen Xiao, Shanmu Dong, Pengxian Han, Zhongyi Zhang, Xiaoying Zhang, Caifeng Bi, Guanglei Cui. Solid State Ionics 181 (2010) 1685-1689 [DOI: http://dx.doi.org/10.1016/j.elecom.2006.10.050].   DOI   ScienceOn
8 Hee-Cheol Kang, Dae-Kyoo Jun, Bo Jin, En Mei Jin, Kyung-Hee Park, Hal-Bon Gu, Ki-Won Kim, Journal of Power Sources 179 (2008) 340-346 [DOI: http://dx.doi.org/10.1016/j.jpowsour.2007.12.093].   DOI   ScienceOn
9 A. K. Padhi, K. S. Nanjundaswamy, J. B. Goodenough, J. Electrochem. Soc. 144 (1997) 1188 [DOI: http://dx.doi.org/10.1149/1.1837571].   DOI   ScienceOn
10 J. F. Ni, H. H. Zhou, J. T. Chen, X. X. Zhang, Mater. Lett. 59 (2005) 2361 [DOI: http://dx.doi.org/10.1002/chin.200544013].   DOI   ScienceOn
11 Atef Y. Shenouda, Hua K. Liu. Journal of Alloys and Compounds 477 (2009) 498-503 [DOI: http://dx.doi.org/10.1016/j.jallcom.2008.10.077]   DOI   ScienceOn
12 Hu Guo-rong, GAO Xu-guang, PENG Zhong-dong, DU Ke, TAN Xian-yan, LIU Yan-jun, Trans Nonferrous Met Soc. China. 17 (2007) 296-300 [DOI: http://dx.doi.org/10.1016/S1003-6326(07)60088-0].   DOI   ScienceOn
13 HU G R, GAO X G, PENG Z D, CHEN Z Y, TAN X Y, YU X Y, Trans Nonferrous Met Soc. China. (2005), 15(4): 795-798
14 MYUNG S T, KOMABA S, HIROSAKI N, YASHIRO H, KUMAGAI N. Electrochimica Acta, 2004 49(24): 4213-4222 [DOI: http://dx.doi.org/10.1016/j.electacta.2004.04.016].   DOI   ScienceOn
15 BAKER J, SAIDI M Y, SWOYER J. Electrochem Solid-State Lett, 2003 6(3): A53-A55 [DOI: http://dx.doi.org/10.1201/9780203913321.ch15].   DOI   ScienceOn
16 YANG S F, ZAVALIJ P Y, WHITTINGGHAM M S. Electrochem Commun, 2001, 3(9): 505-508 [DOI: http://dx.doi.org/10.1016/S1388-2481(01)00200-4].   DOI   ScienceOn
17 PARK K S, KANG K T, LEE S B, KIM G Y, PARK Y J, KIM H G. Materials Research Bulletin, 2004, 39(12): 1803-1810 [DOI: http://dx.doi.org/10.1016/j.materresbull.2004.07.003].   DOI   ScienceOn