Hostname: page-component-76fb5796d-45l2p Total loading time: 0 Render date: 2024-04-26T10:53:12.533Z Has data issue: false hasContentIssue false

Preparation and Characterization of ALD TiN Thin Films on Lithium Titanate Spinel (Li4Ti5O12) for Lithium Ion Battery Applications

Published online by Cambridge University Press:  26 February 2011

Mark Q. Snyder
Affiliation:
msnyder@umche.maine.edu, University of Maine, Chemical & Biological Engineering, 5737 Jenness Hall, Orono, ME, 04469, United States, (207) 581-2287, (207) 581-2323
Svetlana Trebukhova
Affiliation:
svetlana@lithion.com, Yardney Technical Products/Lithion, Inc., Pawcatuck, CT, 06379, United States
Boris Ravdel
Affiliation:
bravdel@lithion.com, Yardney Technical Products/Lithion, Inc., Pawcatuck, CT, 06379, United States
M. Clayton Wheeler
Affiliation:
cwheeler@umche.maine.edu, University of Maine, Chemical & Biological Engineering, 5737 Jenness Hall, Orono, ME, 04469, United States
Joseph DiCarlo
Affiliation:
jdicarlo@lithion.com, Yardney Technical Products/Lithion, Inc., Pawcatuck, CT, 06379, United States
Carl P. Tripp
Affiliation:
ctripp@maine.edu, University of Maine, Department of Chemistry, Orono, ME, 04469, United States
William J. DeSisto
Affiliation:
wdesisto@umche.maine.edu, University of Maine, Chemical & Biological Engineering, 5737 Jenness Hall, Orono, ME, 04469, United States
Get access

Abstract

Lithium titanate spinel (Li4Ti5O12, or LTS) has received an increasing level of attention as a nanopowder lithium-ion battery anode. Nanopowder electrodes may provide a higher energy density than currently available. Furthermore, the surface of the spinel nanopowder has been studied in air, under vacuum, and at varying temperatures with diffuse reflectance infrared Fourier transform spectroscopy revealing surface hydroxyls, carbonates and water. Applying a TiN thin film, a film that is both conducting and chemically inert to harmful reactions with the solvent/electrolyte, by atomic layer deposition (ALD) may enhance battery cycle life. A 200-layer film was deposited at 500 °C. We have characterized the influence of a TiN thin film on Li-ion battery performance. Total nitrogen content and transmission electron microscopy were used to verify the presence of nitrogen and formation of a thin film, respectively, on LTS. Modifying the powder with an ALD thin film coating produced an anode material with a voltage profile that demonstrated longer charge maintenance with shorter transient periods. It also held a more consistent charge capacity over varying discharge rates in coin cell testing than unmodified LTS.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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] Arico, A. S., Bruce, P., Scrosati, B., Tarascon, J.-M., van Schalkwijk, W., Nature Materials, 4 (2005) 366.Google Scholar
[2] Aurbach, D., Advances In Lithium-Ion Batteries, Kluwer Academic/Plenum Publishers, 2002, p. 7.Google Scholar
[3] Abraham, K. M., A Critical Review of the Characterization Studies of Altair's Li4Ti5O12 Materials for Li-Ion Batteries, E-KEM Sciences, 2001.Google Scholar
[4] Peramunage, D., Abraham, K. M., J. Electrochem. Soc., 145 (1998) 2609.Google Scholar
[5] Juppo, M., Ritala, M., Leskela, M., J. Electrochem. Soc., 147 (2000) 3377.Google Scholar
[6] Haukka, S., Lakomaa, E. L., Root, A., J. Phys. Chem., 97 (1993) 5085.Google Scholar
[7] Snyder, M. Q., McCool, B. A., DiCarlo, J., Tripp, C. P., DeSisto, W. J., Thin Solid Films, 514 (2006) 97.Google Scholar
[8] Blitz, J. P., Colloids Surf., 63 (1992) 11.Google Scholar
[9] Elam, J. W., Schuisky, M., Ferguson, J. D., George, S. M., Thin Solid Films, 436 (2003) 145.Google Scholar
[10] Ninness, B. J., Bousfield, D. W., Tripp, C. P., Colloids Surf., A, 214 (2003) 195.Google Scholar
[11] Gu, W., Tripp, C. P., Langmuir, 22 (2006) 5748.Google Scholar
[12] Mosqueda, H. A., Vazquez, C., Bosch, P., Pfeiffer, H., Chem. Mater., 18 (2006) 2307.Google Scholar
[13] Satta, A., Schuhmacher, J., Whelan, C. M., Vandervorst, W., Brongersma, S. H., Beyer, G. P., Maex, K., Vantomme, A., Viitanen, M. M., Brongersma, H. H., Besling, W. F. A., J. Appl. Phys., 92 (2002) 7641.Google Scholar