PHYSICAL VAPOR DEPOSITION OF LiCoO2 CATHODE FOR Li-ION THIN FILM BATTERY

摘要：

Pulsed laser deposition (PLD) has been applied to prepare LiCoO2 polycrystalline cathodes for Li-ion thin film batteries on various substrates including Si wafer, Pt, Au, and stainless steel (SS). The morphologies and the microstructures of the LiCoO2 cathode films were characterized by scanning electron microscopy (SEM) and X-ray diffraction technique (XRD), separately. A c-axis oriented cathode film is grown on Si substrate, and the film on Pt exhibits a highly preferred (003) texture. On the contrary, the preferential orientation (104) is observed for the cathode film on Au while the film on SS shows random orientation. The electrochemical tests indicate that flat charge/discharge plateaus corresponding to the first-order phase transition appear at around 3.9 V vs. Li, resulting in high utilization of the active material and good capability retention.

会议类型: 国际会议

会议名称: The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)

会议地点: 武汉

会议语种:英文

页码: 800-805

在线出版日期: 2010-05-02（万方平台首次上网日期，不代表论文的发表时间）