Electrochemical investigation on silicon/titanium carbide nanocomposite film anode for Li-ion batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

21 Scopus Citations
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Author(s)

  • Z.Y. Zeng
  • J.P. Tu
  • X.H. Huang
  • X.L. Wang
  • J.Y. Xiang

Detail(s)

Original languageEnglish
Pages (from-to)4767-4771
Journal / PublicationThin Solid Films
Volume517
Issue number17
Online published10 Mar 2009
Publication statusPublished - 1 Jul 2009
Externally publishedYes

Abstract

A Si/TiC nanocomposite film was synthesized by a surface sol-gel method in combination with a following heat-treatment process. The electrochemical properties of the film anode for lithium ion batteries were investigated by galvanostatic charge-discharge tests, cyclic voltammetry (CV) and electrochemical impedance spectrum (EIS). Because of the homogeneous distribution of Si active particles in TiC matrix, the Si/TiC composite showed reversible lithium storage capacities of about 1000 and 1300 mAh g-1 at 160 and 80 mA g-1 even after 80 cycles, respectively. Using two-parallel diffusion path model, the reactive mechanisms of Li with Si/TiC composite film were interpreted. The chemical diffusion coefficients of the Si/TiC nanocomposite film at different electrode potentials were also discussed.

Research Area(s)

  • Nanosized Si, Titanium carbide, Nanocomposite film, Lithium ion battery

Citation Format(s)

Electrochemical investigation on silicon/titanium carbide nanocomposite film anode for Li-ion batteries. / Zeng, Z.Y.; Tu, J.P.; Huang, X.H.; Wang, X.L.; Xiang, J.Y.

In: Thin Solid Films, Vol. 517, No. 17, 01.07.2009, p. 4767-4771.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal