Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (08): 752-756.doi: 10.3866/PKU.WHXB19990816

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CeO2 Thin Film as a Lithium-ion-storage Mterial Fabricted by Pulsed Laser Deposition

Jiang Li-Zhong, Zhou Ming-Fei, Liu Xian-Nian, Qin Qi-Fei   

  1. Institute of Laser Chemistry,Fudan University,Shanghai 200433
  • Received:1998-11-16 Revised:1999-01-27 Published:1999-08-15
  • Contact: Qin Qi-Fei

Abstract:

CeO2 then films have been fabricated on stainless steel substrate heated at 700℃ in an oxygen ambient by pulsed laser deposition. SEM showed that as-deposited films are mainly com- posed of uniform nanocrystalline particles. Films were characterized by X-ray diffraction from which the oxygen deficient polycrystalline Ce6O11, with a modified monoclinic structure has been demonstrated. The electrochemical properties of the films were measured with cyclic voltammetry and galvonostatic charge /discharge techniques. Our results showed that the CeO2 film exhibits good cyclibility with a reversible capacity of 45mC. cm-2(in the range of 0.1 to 1.5V at current density 40μA•cm-2). It can be suggested that CeO2 thin film is suitable for the anode of Li rechargeable microbattery.

Key words: Pulsed laser deposition, Lithium battery, Lithium-ion embeding, CeO2 thin film