Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-08T05:02:06.052Z Has data issue: false hasContentIssue false

Olivine-Carbon Nanofibrous Cathodes for Lithium Ion Batteries

Published online by Cambridge University Press:  01 February 2011

Yan L. Cheah
Affiliation:
[email protected], Nanyang Technological University, School of Materials Science and Engineering, Singapore, Singapore
Subodh Mhaisalkar
Affiliation:
[email protected], Nanyang Technological University, School of Materials Science and Engineering, Singapore, Singapore
Madhavi Srinivasan
Affiliation:
Get access

Abstract

Olivine (LiFePO4)-carbon nanofibre composites were synthesized through a combination of electrospinning and solvothermal methods. Morphology, distribution and crystal structure of these composites were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). Electrochemical properties of synthesized LiFePO4-carbon fibre composite cathodes have been studied in litium ion coin cells by means of galvanostatic cycling and cyclic voltammetry. As compared to pristine LiFePO4, there was significant improvement in the specific capacity (˜25% at 0.1C rate) of LiFePO4 - ECNF owing to the improved conductivity.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Padhi, A., Nanjundaswamy, K. and Goodenough, J., J. Electrochem. Soc., 144, 11881194, (1997)Google Scholar
2 Thackeray, M., Nature Materials, 1, 8182, (2002).Google Scholar
3 Thomas, J., Nature Materials, 2, 705707 (2003).Google Scholar
4 Maccario, M., Croguennec, L., Cras, F. L. and Delmas, C., J. Power Sources, 183, 411417 (2008).Google Scholar
5 Chen, J.-M., Hsu, C.-H., Lin, Y.-R., Hsiao, M.-H. and Fey, G. T.-K., J. Power Sources, 184, 498502 (2008).Google Scholar
6 Liang, G., Wang, L., Ou, X., Zhao, X. and Xu, S., J. Power Sources, 184, 538542 (2008).Google Scholar
7 Lin, Y., Gao, M. X., Zhu, D., Liu, Y. F. and Pan, H. G., J. Power Sources, 184, 444448 (2008).Google Scholar
8 Choi, D. and Kumta, P. N., J. Power Sources, 163 (2007).Google Scholar
9 Croce, F., Epifanio, A. D., Hassoun, J., Deptula, A., Olczac, T. and Scrosati, B., Electrochem. Solid-State Lett., 5, A47–A50 (2005).Google Scholar
10 Kim, J.-K., Chauhan, G. S., Ahn, J.-H. and Ahn, H.-J., J. Power Sources, 189, 391396 (2009).Google Scholar
11 Heo, J. B., Lee, S. B., Cho, S. H., Kim, J., Park, S. H. and Lee, Y. S., Mater. Lett., 63, 581583 (2009).Google Scholar
12 Wang, D., Li, H., Shi, S., Huang, X. and Chen, L., Electrochimica Acta, 50 (2005).Google Scholar
13 Jin, B., Jin, E. M., Park, K.-H. and Gu, H.-B., Electrochem. Comm., 10, 15371540 (2008).Google Scholar
14 Wang, L., Huang, Y., Jiang, R. and Jia, D., J. Electrochem. Soc., 154, A1015–A1019 (2007).Google Scholar
15 Li, D. and Xia, Y., Adv. Mater., 16, 11511170 (2004).Google Scholar
16 Liu, C.-K., Lai, K., Liu, W., Yao, M. and Sun, R.-J., Polym Int 2009, 58, 13411349 (2009).Google Scholar
17 Ait-Salah, A., Dodd, J., Mauger, A., Yazami, R., Gendron, F. and Julien, C. M., Z. Anorg. Allg. Chem., 632, 15981605 (2006).Google Scholar
18 Thavasi, V., Singh, G. and Ramakrishna, S., Energy & Environ. Sci., 1, 205221 (2008).Google Scholar
19 Kim, C., Yang, K. S., Kojima, M., Yoshida, K., Kim, Y. J., Kim, Y. A. and Endo, M., Adv. Mater., 16, 23932397 (2006).Google Scholar
20 Guo, Q., Zhou, X., Li, Z., Chen, S., Seema, A., Greiner, A. and Hou, H., J. Mater. Chem., 19, 28102816 (2008).Google Scholar
21 Kim, C., Ngoc, B. T. N., Yang, K. S., Kojima, M., Kim, Y. A., Kim, Y. J., Endo, M. and Yang, S. C., Adv. Mater., 19, 23412346 (2007).Google Scholar
22 Rietveld, H. M., Acta Crystallogr., 22, 157 (1967).Google Scholar
23 Rietveld, H. M., J. Appl. Crytallogr., 2, 65 (1969).Google Scholar
24 Cheary, R. W. and Coelho, A., J. Appl. Cryst., 25, 109 (1992).Google Scholar