Hostname: page-component-797576ffbb-bqjwj Total loading time: 0 Render date: 2023-12-05T09:58:15.834Z Has data issue: false Feature Flags: { "corePageComponentGetUserInfoFromSharedSession": true, "coreDisableEcommerce": false, "useRatesEcommerce": true } hasContentIssue false

Polyol Synthesis of Lithium Iron Phosphate with Carbon Nanotubes: Effect of Dispersion on Crystallinity and Electrochemical Performance

Published online by Cambridge University Press:  01 August 2014

Wesley D. Tennyson*
Affiliation:
School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman OK, 73019, USA
Get access

Abstract

Carbon nanotubes (CNTs) have been shown to be a viable conductive additive in Li-Ion batteries [1]. By using CNTs battery life, energy, and power capability can all be improved over carbon black, the traditional conductive additive. A significantly smaller weight percentage (5% CNTs) is needed to get the same conductivity as 20% carbon black. Many of the previous efforts found that a combination of conductive additives was most advantageous [2]. Unfortunately many of these efforts did not attend to the unique challenge that dispersing nanotubes presents and used non-optimal methods to disperse CNTs (e.g. ball milling) [3,4]. With poor dispersion a stable and resilient conductive network in the cathode is hard to form with CNTs alone. Here we investigate the formation of LiFePO₄ with CNTs using a polyol process synthesis.

Type
Articles
Copyright
Copyright © Materials Research Society 2014 

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

Wang, H., Huang, K., Ren, Y., Huang, X., Liu, S., and Wang, W., J. Power Sources, 196, 9786 (2011).CrossRefGoogle Scholar
Gnanavel, M., Patel, Manu U. M., Sood, A. K., Bhattacharyya, Aninda J., Journal of The Electrochemical Society, 159(4) A336A341 (2012)CrossRefGoogle Scholar
Liu, X.-M., Huang, Z. D., Oh, S. W., Zhang, B., Ma, P.-C., Yuen, M. M.F., and Kim, J.-K., Composites Science and Tech., 72, 121 (2012).CrossRefGoogle Scholar
Woodman, R.H., Klotz, B.R., Dowding, R.J., Ceram. Int., 31, 765768 (2005).CrossRefGoogle Scholar