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 › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 4767-4771 |
Journal / Publication | Thin Solid Films |
Volume | 517 |
Issue number | 17 |
Online published | 10 Mar 2009 |
Publication status | Published - 1 Jul 2009 |
Externally published | Yes |
Link(s)
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 › peer-review