Li4Ti5O12/C anode material with high-rate performance using phenanthroline as carbon precursor
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- 作者：Yurong Ren ; Xiaobing Huang ; Haiyan Wang ; Jianning Ding ; Shibiao Zhou…
- 关键词：Li ; ion battery ; Anode material ; Li4Ti5O12 ; Li4Ti5O12/C composite ; Phenanthroline
- 刊名：Ionics
- 出版年：2015
- 出版时间：March 2015
- 年：2015
- 卷：21
- 期：3
- 页码：629-634
- 全文大小：538 KB
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- 刊物主题：Chemistry
Electrochemistry
Materials Science
Physical Chemistry
Condensed Matter
Renewable Energy Sources
Electrical Power Generation and Transmission- 出版者：Springer Berlin / Heidelberg
- ISSN：1862-0760
文摘
Carbon source is a very important factor for the quality of derived carbon coating layer. With this regard, phenanthroline is introduced as carbon source in this work with the aim of getting high-rate Li4Ti5O12/C composite. The effect of coated carbon on the structure, morphological, and electrochemical characteristics is studied in details. In comparison with the pristine Li4Ti5O12, Li4Ti5O12/C composite delivers much higher electrochemical performance in terms of reversible discharge capacity, cycling performance, and rate capability. The Li4Ti5O12/C composite exhibits a high discharge capacity of 172 and 145?mAh?g? at 0.2 and 10?C rate, respectively. After 100?cycles at 10?C, 96.6?% of its initial capacity is retained, demonstrating good cycling stability.