Browse > Article
http://dx.doi.org/10.4283/JKMS.2007.17.2.065

Mössbauer Effect on LiFePO4 by Changing the Sintering Temperature and as Charged Cathode in Lithium Ion Battery  

Kim, T.H. (Jin Woo Eng. Institute of Energy)
Kim, H.S. (Department of physics, Dongguk University)
Im, H.S. (Dept. of Semiconductor Science, Dongguk University)
Yu, Y.B. (Kangwon National University)
Abstract
In this paper, we composed the $LiFePO_4$ for the reversible use as the replacement material of the Li ion batteries and confirmed the good quality of the structure of the samples with the sintering temperature $675^{\circ}C,\;750^{\circ}C,\;and\;800^{\circ}C$ for 30 hours at nitrogen atmosphere. We also investigated the size of the particles through SEM picture and the change of the sintering temperature and the $Fe^{+3}$ content after charging the materials with 1 V, 160 mA and 3 V, 40 mA for 3 hours by Mossbauer spectroscopy. Also we can observe the increase on the $Fe^{+3}$ content at the charge condition and the increase of the amount ratio of the $Fe^{+3}$ ion only in sintering temperature $675^{\circ}C$ according to the increase of the electric charge. We cannot observe the change of the $Fe^{+3}$ ion in sintering temperature $800^{\circ}C$ after charging.
Keywords
$M\ddot{o}ssbauer$ spectroscopy; sintering temperature; lithium ion battery;
Citations & Related Records
연도 인용수 순위
  • Reference
1 A. K. Padhi, K. S. Nanjungdaswamy, and J. B. Goodenough, J. Electrochem. Soc., 144, 1188 (1997)   DOI
2 A. S. Anderson and J. O. Thomas, J. Power. Sources, 98, 498 (2001)   DOI   ScienceOn
3 K. S. Park, J. T. Son, H. T. Chung, S. J. Kim, C. H. Lee, and H. G. Kim, Electrochem. Comm., 5, 839, (2003)   DOI   ScienceOn
4 S.-Y. Chung, J. T. Blocking, and Y.-T Chiang, Nat. Mat., 1, 123 (2002)
5 Luo-Zhi, et al., Chinense Phys., 13(12), 2158 (2004)
6 A. S. Anderson, J. O. Thomas, et al., Sol. Stat. Ionics, 130, 41 (2000)   DOI   ScienceOn
7 S. Okada, et al., J. of Powers Sources, 97-98, 430 (2001)   DOI   ScienceOn
8 M. Takahashi, S. Tobishima, et al., J. of Powers Sources, 97-98, 508 (2001)   DOI   ScienceOn