Electrochemical deposition of porous Co3O4 nanostructured thin film for lithium-ion battery

Authors

Shulei Chou, University of WollongongFollow
Jiazhao Wang, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow
S. X. Dou, University of WollongongFollow

RIS ID

24518

Publication Details

Chou, S., Wang, J., Liu, H. K. and Dou, S. X. (2008). Electrochemical deposition of porous Co3O4 nanostructured thin film for lithium-ion battery. Journal of Power Sources, 182 (1), 359-364.>

Abstract

Porous Co3O4 nanostructured thin films are electrodeposited by controlling the concentration of Co(NO3)2 aqueous solution on nickel sheets, and then sintered at 300C for 3 h. The as-prepared thin films are characterised by thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The electrochemical measurements show that the highly porous Co3O4 thin film with the highest electrochemically active specific surface area (68.64 m2 g-1) yields the best electrochemical performance compared with another, less-porous film and with a non-porous film. The highest specific capacity (513 mAh g-1 after 50 cycles) is obtained from the thinnest film with Co3O4 loaded at the rate of 0.05 mg cm-2. The present research demonstrates that electrode morphology is one of the crucial factors that affect the electrochemical properties of electrodes.