Capacity fading of pulsed-laser deposited HT-LiCoO2 films cycled in LiClO4/PC
文献类型：期刊论文
| 作者 | Zhang, Y.2; Chung, C. Y.1; Sun, L. X.3; Zhu, M.2,3 |
| 刊名 | materials chemistry and physics
 |
| 出版日期 | 2008-02-15 |
| 卷号 | 107期号:2-3页码:254-260 |
| 关键词 | LiCoO2 capacity fading pulsed-laser deposition |
| 产权排序 | 3;3 |
| 通讯作者 | m. zhu |
| 英文摘要 | well-crystallized ht-licoo2 films with preferential c-axis orientation were prepared by pulsed-laser deposition using stoichiometric licoo2 targets. the cyclicability of the deposited ht-licoo2 films was evaluated using constant current (cc) and pulse discharge (pd) cycling. x-ray diffraction, raman spectroscopy and scanning electron microscopy were performed to characterize the changes in the structure and morphology of the ht-licoo2 films before and after cycling. the films delivered an initial discharge capacity of 40 mu ah mu m(-1) cm(-2) and the discharge capacity decreased to 22.4 after 100 constant current cycles, due to the following three effects which occurred simultaneously: (a) mechanical failure, (b) dissolution of cation ions and (c) transformation of ht-licoo2 to spinel phase (co3o4 or lico2o4). under pd cycling, the discharge capacity of the films decreased quickly from about 39 to 9 mu ah mu m(-1) cm(-2) after only five cycles. the faster capacity fading in pd cycling may be induced by significant increase in inhomogeneous lithium intercalation, while the underlying mechanisms under pd cycling may be the same with those under cc cycling. (c) 2007 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | materials science, multidisciplinary |
| 研究领域[WOS] | materials science |
| 关键词[WOS] | rechargeable lithium batteries ; licoo2 thin-films ; electrochemical properties ; cathode materials ; aging mechanisms ; ion batteries ; electrolyte ; oxidation ; carbonate ; lixcoo2 |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000252580400014 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/100379]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Peoples R China 2.S China Univ Technol, Sch Mech Engn, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Themochem Lab, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Y.,Chung, C. Y.,Sun, L. X.,et al. Capacity fading of pulsed-laser deposited HT-LiCoO2 films cycled in LiClO4/PC[J]. materials chemistry and physics,2008,107(2-3):254-260. |
| APA | Zhang, Y.,Chung, C. Y.,Sun, L. X.,&Zhu, M..(2008).Capacity fading of pulsed-laser deposited HT-LiCoO2 films cycled in LiClO4/PC.materials chemistry and physics,107(2-3),254-260. |
| MLA | Zhang, Y.,et al."Capacity fading of pulsed-laser deposited HT-LiCoO2 films cycled in LiClO4/PC".materials chemistry and physics 107.2-3(2008):254-260. |
入库方式： OAI收割
来源：大连化学物理研究所
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