| 脉冲激光沉积具有锂离子储存能力的CeO2薄膜 |
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| 引用本文： | 蒋立中,周鸣飞,刘先年,秦启宗.脉冲激光沉积具有锂离子储存能力的CeO2薄膜[J].物理化学学报,1999,15(8):752-756. |
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| 作者姓名： | 蒋立中 周鸣飞 刘先年 秦启宗 |
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| 作者单位： | Institute of Laser Chemistry,Fudan University,Shanghai 200433 |
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| 基金项目： | 国家自然科学基金资助项目!（29783001） |
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| 摘 要： | 锂电池具有比能量高，循环性能好的优点，已成为二次电池研究的热点．锂离子电极材料的电致变色性能也引起了人们的广泛兴趣．最近一项日本专利报导了水热法合成的氧化铈粉末，属单斜晶系，作为锂离子电池阳极时，其体积比容量达５３０ｍＡｈ·ｃｍ－３，高于通常用的石墨阳极．该专利还指出，以ＣｅＯ２为阳极，ＬｉＣｏＯ２为阴极，与非水电解质组成的锂电池平均放电电压为３．５Ｖ左右［１］．近年来，全固态薄膜锂离子微电池为适应电子器件的微型化而受到重视，它可以采用不同的二维形状直接构织到集成电路上．例如，可作为动态随机存储…
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| 关 键 词： | 脉冲激光沉积 锂电池 锂离子嵌入 CeO2薄膜 |
| 收稿时间： | 1998-11-16 |
| 修稿时间： | 1999-01-27 |
CeO_2 Thin Film as a Lithium-ion-storage Material Fabricated by Pulsed Laser Deposition |
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| Jiang Lizhong,Zhou Mingfei,Liu Xiannian,Qin Qizong.CeO_2 Thin Film as a Lithium-ion-storage Material Fabricated by Pulsed Laser Deposition[J].Acta Physico-Chimica Sinica,1999,15(8):752-756. |
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| Authors: | Jiang Lizhong Zhou Mingfei Liu Xiannian Qin Qizong |
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| Institution: | Institute of Laser Chemistry,Fudan University,Shanghai 200433 |
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| 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. |
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| Keywords: | Pulsed laser deposition Lithium battery Lithium-ion embeding CeO2 thin film |
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