Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-29T07:57:57.682Z Has data issue: false hasContentIssue false
  • English
  • Français

Lithium Ion Diffusion Through Glassy Carbon Plate

Published online by Cambridge University Press:  10 February 2011

M. Inaba ,
S. Nohmi ,
A. Funabiki ,
T. Abe  and
Z. Ogumi
M. Inaba
Affiliation:
Dept. of Energy and Hydrocarbon Chem., Graduate School of Engineering, Kyoto Univ., Sakyo- ku, Kyoto 606–01, Japan
S. Nohmi
Affiliation:
Dept. of Energy and Hydrocarbon Chem., Graduate School of Engineering, Kyoto Univ., Sakyo- ku, Kyoto 606–01, Japan
A. Funabiki
Affiliation:
Dept. of Energy and Hydrocarbon Chem., Graduate School of Engineering, Kyoto Univ., Sakyo- ku, Kyoto 606–01, Japan
T. Abe
Affiliation:
Dept. of Energy and Hydrocarbon Chem., Graduate School of Engineering, Kyoto Univ., Sakyo- ku, Kyoto 606–01, Japan
Z. Ogumi
Affiliation:
Dept. of Energy and Hydrocarbon Chem., Graduate School of Engineering, Kyoto Univ., Sakyo- ku, Kyoto 606–01, Japan
Get access

Abstract

The electrochemical permeation method was applied to the determination of the diffusion coefficient of Li+ ion (DLi+) in a glassy carbon (GC) plate. The cell was composed of two compartments, which were separated by the GC plate. Li+ ions were inserted electrochemically from one face, and extracted from the other. The flux of the permeated Li+ ions was monitored as an oxidation current at the latter face. The diffusion coefficient was determined by fitting the transient current curve with a theoretical one derived from Fick's law. When the potential was stepped between two potentials in the range of 0 to 0.5 V, transient curves were well fitted with the theoretical one, which gave DLi+ values on the order of 10−8 cm2 s−1. In contrast, when the potential was stepped between two potentials across 0.5 V, significant deviation was observed. The deviation indicated the presence of trap sites as well as diffusion sites for Li+ ions, the former of which is the origin of the irreversible capacity of GC.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 496: Symposium Y – Materials For Electrochemical Energy Storage & Conversion II… , 1997 , 493
Copyright
Copyright © Materials Research Society 1998

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

REFERENCES

1. Jean, M., Desnoyer, C., Tranchent, A., and Messina, R., J. Electrochem. Soc., 142, 2122 (1995).10.1149/1.2044261Google Scholar
2. Uchida, T., Itoh, T., Morikawa, Y., Ikuta, H., and Wakihara, M., Denki Kagaku, 61, 1390 (1993).Google Scholar
3. Uchida, T., Morikawa, Y., Ikuta, H., and Wakihara, M., J. Electrochem. Soc., 143, 2606 (199).10.1149/1.1837055Google Scholar
4. Takarni, N., Satoh, A., Hara, M., and Ohsaki, T., J. Electrochem. Soc., 142, 371 (1995).Google Scholar
5. Morita, M., Nishimura, N., and Matsuda, Y., Electrochim. Acta, 38, 1721 (1993).10.1016/0013-4686(93)85068-AGoogle Scholar
6. Funabiki, A., Inaba, M., Ogumi, Z., Yuasa, S.-I., Ohtsuji, J., and Tasaka, A., J. Electrochem. Soc., in press.Google Scholar
7. McBreen, J., Nanis, L., and Beck, W., J. Electrochem. Soc., 113, 1218 (1996).10.1149/1.3087209Google Scholar
8. Turnbull, A., Saenz de Santa Maria, M., and Thomas, N. D., Corros. Sci., 28, 89 (1989).10.1016/0010-938X(89)90082-6Google Scholar
9. Ogumi, Z., Kuroe, T., and Takehara, Z., J. Electrochem. Soc., 132, 2601 (1985).10.1149/1.2113631Google Scholar
10. Ogumi, Z., Takehara, Z., and Yoshizawa, S., J. Electrochem. Soc., 131, 769 (1984).10.1149/1.2115696Google Scholar