Electrochemical Performance of Natural Graphite by Surface Modification Using Aluminum
Authors:
- Sung-Soo KimSKSung-Soo Kim
- Yoshihiro KadomaYKYoshihiro Kadoma
- Hiromasa IkutaHIHiromasa Ikuta
- Yoshiharu UchimotoYoshiharu Uchimoto
- Masataka WakiharaMWMasataka Wakihara
- 1 January 2001
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 4 (8) , A109-A112
Abstract
We investigated electrochemical performance of natural graphite surface-treated with aluminum compared to that of untreated graphite. Aluminum triethoxide was used as the treatment source. In the treatment process, the drying temperature has critical influence on electrochemical performance of the treated samples. The surface property of treated samples was investigated by scanning electron microscopy and Raman spectroscopy. The vibration mode of the treated sample was sharpened and shifted upward, whereas no remarkable changes were found in mode. The electrochemical performance improved markedly with Al treatment. The impedance measurement shows that the Al treated sample had much smaller charge-transfer resistance during cycling. © 2001 The Electrochemical Society. All rights reserved.Keywords
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