LiFePO 4 - 3D carbon nanofiber composites as cathode materials for Li-ions batteries

L. Dimesso, C. Spanheimer, W. Jaegermann, Y. Zhang, Alexander Yarin

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The characterization of carbon nanofiber 3D nonwovens, prepared by electrospinning process, coated with olivine structured lithium iron phosphate is reported. The LiFePO 4 as cathode material for lithium ion batteries was prepared by a Pechini-assisted reversed polyol process. The coating has been successfully performed on carbon nanofiber 3D nonwovens by soaking in aqueous solution containing lithium, iron salts and phosphates at 70 °C for 2-4 h. After drying-out, the composites were annealed at 600 °C for 5 h under nitrogen. The surface investigation of the prepared composites showed a uniform coating of the carbon nonwoven nanofibers as well as the formation of cauliflower-like crystalline structures which are uniformly distributed all over the surface area of the carbon nanofibers. The electrochemical measurements on the composites showed good performances delivering a discharge specific capacity of 156 mAhg -1 at a discharging rate of C/25 and 152 mAhg -1 at a discharging rate of C/10 at room temperature.

Original languageEnglish
Article number064307
JournalJournal of Applied Physics
Volume111
Issue number6
DOIs
Publication statusPublished - 2012 Mar 15
Externally publishedYes

Fingerprint

electric batteries
cathodes
composite materials
lithium
carbon
phosphates
ions
iron
soaking
olivine
drying
coating
aqueous solutions
salts
coatings
nitrogen
room temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Dimesso, L., Spanheimer, C., Jaegermann, W., Zhang, Y., & Yarin, A. (2012). LiFePO 4 - 3D carbon nanofiber composites as cathode materials for Li-ions batteries. Journal of Applied Physics, 111(6), [064307]. https://doi.org/10.1063/1.3693575

LiFePO 4 - 3D carbon nanofiber composites as cathode materials for Li-ions batteries. / Dimesso, L.; Spanheimer, C.; Jaegermann, W.; Zhang, Y.; Yarin, Alexander.

In: Journal of Applied Physics, Vol. 111, No. 6, 064307, 15.03.2012.

Research output: Contribution to journalArticle

Dimesso, L, Spanheimer, C, Jaegermann, W, Zhang, Y & Yarin, A 2012, 'LiFePO 4 - 3D carbon nanofiber composites as cathode materials for Li-ions batteries', Journal of Applied Physics, vol. 111, no. 6, 064307. https://doi.org/10.1063/1.3693575
Dimesso, L. ; Spanheimer, C. ; Jaegermann, W. ; Zhang, Y. ; Yarin, Alexander. / LiFePO 4 - 3D carbon nanofiber composites as cathode materials for Li-ions batteries. In: Journal of Applied Physics. 2012 ; Vol. 111, No. 6.
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