Preparation of micro-dot electrodes of LiCoO2 and Li4Ti5O12 for lithium micro-batteries |
| |
Authors: | Kaoru Dokko Jun-ichi Sugaya Hirokazu Munakata Kiyoshi Kanamura |
| |
Affiliation: | a Department of Applied Chemistry, Graduate School of Engineering, Tokyo Metropolitan University, Minami-Ohsawa, Hachioji, Tokyo 192-0397, Japan b CREST, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan |
| |
Abstract: | Fabrications of micro-dot electrodes of LiCoO2 and Li4Ti5O12 on Au substrates were demonstrated using a sol-gel process combined with a micro-injection technology. A typical size of prepared dots was about 100 μm in diameter, and the dot population on the substrate was 2400 dots cm−2. The prepared LiCoO2 and Li4Ti5O12 micro-dot electrodes were characterized with scanning electron microscopy, X-ray diffraction, micro-Raman spectroscopy, and cyclic voltammetry. The prepared LiCoO2 and Li4Ti5O12 micro-dot electrodes were evaluated in an organic electrolyte as cathode and anode for lithium micro-battery, respectively. The LiCoO2 micro-dot electrode exhibited reversible electrochemical behavior in a potential range from 3.8 to 4.2 V versus Li/Li+, and the Li4Ti5O12 micro-dot electrode showed sharp redox peaks at 1.5 V. |
| |
Keywords: | Rechargeable lithium batteries Micro-dot electrode Sol-gel LiCoO2 Li4Ti5O12 |
本文献已被 ScienceDirect 等数据库收录! |
|