Skip to main content Accessibility help
×
Home

The Electrochemistry of Germanium Nitride Versus Lithium

  • N. Pereira (a1) (a2), M. Balasubramanian (a3), L. Dupont (a4), J. McBreen (a3), L. C. Klein (a2) and G. G. Amatucci (a1)...

Abstract

Germanium nitride (Ge3N4) was examined as a potential negative electrode material for Li-ion batteries. The electrochemistry of Ge3N4 versus Li showed high reversible capacity (500mAh/g) and good capacity retention during cycling. A combination of ex-situ and in-situ x-ray diffraction (XRD), ex-situ transmission electron microscopy (TEM) and ex-situ selective area electron diffraction (SAED) analyses revealed evidence supporting the conversion of a layer of Ge3N4 crystal into an amorphous Li3N+LixGe nanocomposite during the first lithiation. The nanocomposite was electrochemically active via a reversible Li-Ge alloying reaction while a core of unreacted Ge3N4 crystal remained inactive. The lithium/metal nitride conversion reaction process was kinetically hindered resulting in limited capacity. Mechanical milling was found to improve the material capacity.

Copyright

References

Hide All
1. Nishijima, M., Kagohashi, T., Imanishi, N., Takeda, Y., Yamamoto, O. and Kondo, S., Solid State Ionics, 83, 107 (1996).
2. Shodai, T., Okada, S., Tobishima, S. and Yamaki, J., Solid State Ionics, 86–88, 785 (1996).
3. Shodai, T., Okada, S., Tobishima, S. and Yamaki, J., J. Power Sources, 68, 515 (1997).
4. Shodai, T., Sakurai, Y. and Suzuki, T., Solid State Ionics, 122, 85 (1999).
5. Takeda, Y., Nishijima, M., Yamahata, M., Takeda, K., Imanishi, N. and Yamamoto, O., Solid State Ionics, 130, 61 (2000).
6. Yang, J., Takeda, Y., Imanishi, N. and Yamamoto, O., Electrochimica Acta, 46, 2659 (2001).
7. Bates, J.B., Dudney, N.J., Neudecker, B., Ueda, A. and Evans, C.D., Solid State Ionics, 135, 33 (2000).
8. Neudecker, B.J. and Zuhr, R.A., Intercalation Compounds for Battery Materials, Proceedings of the Electrochemical Society, 99–24, 295 (2000).
9. Pereira, N., Klein, L.C. and Amatucci, G.G., J. Electrochem. Soc., 149, A262 (2002).
10. Pereira, N., Klein, L.C. and Amatucci, G.G., J. Electrochem. Soc., submitted.

The Electrochemistry of Germanium Nitride Versus Lithium

  • N. Pereira (a1) (a2), M. Balasubramanian (a3), L. Dupont (a4), J. McBreen (a3), L. C. Klein (a2) and G. G. Amatucci (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed