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| 新型锂离子电池正极材料LiVOPO4的制备与表征 | |
| 引用本文： | 何则强,张来礼,熊利芝,唐安平,陈 上,吴显明,刘建本,黄可龙. 新型锂离子电池正极材料LiVOPO4的制备与表征[J]. 无机化学学报, 2008, 24(2): 303-306 |
| 作者姓名： | 何则强 张来礼 熊利芝 唐安平 陈 上 吴显明 刘建本 黄可龙 |
| 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 3. 湖南科技大学化学化工学院,湘潭,411100 4. 中南大学化学化工学院,长沙,410083 |
| 基金项目： | 国家自然科学基金 , 中国博士后科学基金 , 湖南省自然科学基金 , 湖南省教育厅科研项目 , 中南大学校科研和教改项目 |
| 摘 要： | Novel lithium-ion battery cathode material LiVOPO4 was synthesized by sol-gel method using lithium hydroxide, ammonium metavanadate, phosphoric acid and citric acid as raw materials. The microstructure, surface morphology and electrochemical properties were characterized by various electrochemical methods in combination with thermogravimertric (TG) analysis and differential thermal analysis (DTA), X-ray diffraction (XRD), infrared (IR) spectroscopy, scanning electron microscope (SEM). Results show that the sample obtained by calcinating at 650 ℃ for 6 h is made up of uniform particles with size of 2～3 μm. The first discharge, charge capacity and columbic efficiency of LiVOPO4 is 137.1 mAh·g-1, 146.1 mAh·g-1 and 93.8%, respectively. After 80 cycles the discharge capacity is kept at 130.4 mAh·g-1, which is 95.1% of the first discharge capacity, and the capacity loss per cycle was only 0.061%, suggesting the LiVOPO4 derived by this method is a promising cathode material for lithium ion batteries. |
| 关 键 词： | LiVOPO4； 正极材料； 锂离子电池； 溶胶-凝胶法 |
| 文章编号： | 1001-4861（2008）02-0303-04 |
| 收稿时间： | 2007-08-27 |
| 修稿时间： | 2007-11-12 |
Synthesis and Characterization of LiVOPO4 as Lithium Ion Battery Cathode Material |
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| HE Ze-Qiang,ZHANG Lai-Li,XIONG Li-Zhi,TANG An-Ping,CHEN Shang,WU Xian-Ming,LIU Jian-Ben and HUANG Ke-Long. Synthesis and Characterization of LiVOPO4 as Lithium Ion Battery Cathode Material[J]. Chinese Journal of Inorganic Chemistry, 2008, 24(2): 303-306 | |
| Authors: | HE Ze-Qiang ZHANG Lai-Li XIONG Li-Zhi TANG An-Ping CHEN Shang WU Xian-Ming LIU Jian-Ben HUANG Ke-Long |
| 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, Central South University, Changsha 410083,School of Chemistry and chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411100,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, Central South University, Changsha 410083 |
| Abstract: | |
| Keywords: | LiVOPO4 cathode materials lithium ion batteries sol-gel method |
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