Tailored Li4Ti5O12 nanofibers with outstanding kinetics for lithium rechargeable batteries

Nanoscale. 2012 Nov 7;4(21):6870-5. doi: 10.1039/c2nr31675g. Epub 2012 Oct 2.

Abstract

We report on the synthesis of one-dimensional (1D) Li(4)Ti(5)O(12) nanofibers through electrospinning and their outstanding electrochemical performances. Li(4)Ti(5)O(12) with a spinel structure is a promising candidate anode material for lithium rechargeable batteries due to its well-known zero-strain merits. In order to improve the electronic properties of spinel Li(4)Ti(5)O(12), which are intrinsically poor, we processed the material into a nanofiber type of architecture to shorten the Li(+) and electron transport distance using a versatile electrospinning approach. The electrospun Li(4)Ti(5)O(12) nanofiber showed significantly enhanced discharging/charging properties, even at high rates that exceeded 10 C, demonstrating that the nanofiber offers an attractive architecture for enhanced kinetics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electric Power Supplies*
  • Electrochemical Techniques
  • Electrodes
  • Kinetics
  • Lithium / chemistry*
  • Nanofibers / chemistry*
  • Povidone / chemistry
  • Titanium / chemistry*

Substances

  • Lithium
  • Titanium
  • Povidone