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Low-temperature atomic layer deposited Al2O3 thin film on layer structure cathode for enhanced cycleability in lithium-ion batteries |
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| Authors: | Jyh-Tsung Lee Fu-Ming Wang Chin-Shu Cheng Chun-Hao Lin |
| Affiliation: | a Department of Chemistry, and Center for Nano Science and Nano Technology, National Sun Yat-Sen University, Kaohsiung, Taiwan b Nanoelectrochemistry Laboratory, Graduate Institute of Engineering, National Taiwan University of Science and Technology, 43 Keelung Road, Section 4, Taipei 106, Taiwan c Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan d Institute of Materials Science and Engineering, and Department of Materials & Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan |
| Abstract: | The deposition of Al2O3 on LiCoO2 electrodes using a low-temperature atomic layer deposition has been investigated. Scanning electron microscopy confirms that Al2O3 films can be homogeneously deposited on LiCoO2 particles of porous electrodes at 120 °C. The results of X-ray photoelectron spectroscopy show that the Al2O3 preferentially deposits on the LiCoO2. Furthermore, the results of cycling stability tests show that the cells with Al2O3-coated LiCoO2 electrodes have enhanced performance. |
| Keywords: | Atomic layer deposition Al2O3 LiCoO2 Cathode Lithium-ion batteries |
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