| 锂离子电池用Li4Ti5O12-碳复合材料的制备与电化学性能 |
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| 引用本文： | 何则强,刘文萍,熊利芝,陈上,吴显明,樊绍兵. 锂离子电池用Li4Ti5O12-碳复合材料的制备与电化学性能[J]. 无机化学学报, 2007, 23(4): 733-737 |
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| 作者姓名： | 何则强 刘文萍 熊利芝 陈上 吴显明 樊绍兵 |
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| 作者单位： | 1. 吉首大学化学化工学院,吉首,416000;中南大学化学化工学院,长沙,410083
2. 吉首大学化学化工学院,吉首,416000 |
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| 基金项目： | 国家自然科学基金;中国博士后科学基金;中南大学校科研和教改项目 |
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| 摘 要： | Li4Ti5O12-C composite was prepared by sol-gel method using ethyl alcohol as solvent, lithium acetate and tetrabutyl titanate as raw materials, and graphite as carbon source. Li4Ti5O12-C composites were characterized by thermogravimertric(TG) analysis and differential thermal analysis(DTA), X-ray diffraction(XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and electrochemical tests. Results show that Li4Ti5O12-C composite with 5% carbon containing can be obtained by annealing the precursor at 600 ℃ for 6 h in N2 atomsphere. The composites can deliver a specific capacity of 167.1 mAh·g-1, 99.0% and 105.1% of the capacity can be retained after discharged for 80 times at 0.1C and 2.0C, respectively. Compared with pure Li4Ti5O12, Li4Ti5O12-C composite shares larger discharge capacity, better cyclability and rate performance.
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| 关 键 词： | 锂离子电池； Li4Ti5O12； 负极； 溶胶-凝胶法 |
| 文章编号： | 1001-4861(2007)04-0733-05 |
| 修稿时间： | 2006-11-20 |
Preparation and Electrochemical Properties of Li4Ti5O12-C Composite as Anode for Lithium Ion Batteries |
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| HE Ze-Qiang,LIU Wen-Ping,XIONG Li-Zhi,CHEN Shang,WU Xian-Ming and FAN Shao-Bing. Preparation and Electrochemical Properties of Li4Ti5O12-C Composite as Anode for Lithium Ion Batteries[J]. Chinese Journal of Inorganic Chemistry, 2007, 23(4): 733-737 |
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| Authors: | HE Ze-Qiang LIU Wen-Ping XIONG Li-Zhi CHEN Shang WU Xian-Ming FAN Shao-Bing |
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| Affiliation: | College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000;College of Chemistry and Chemical Engineering, Central South University, Changsha 410083,College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000,College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000,College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000,College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000 and College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000 |
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| Abstract: | |
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| Keywords: | lithium ion batteries Li4Ti5O12 anode sol-gel method |
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