| 锂离子电池正极材料LiV3O8的低温合成研究 |
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| 引用本文： | 刘建睿,王猛,尹大川,黄卫东.锂离子电池正极材料LiV3O8的低温合成研究[J].无机材料学报,2002,17(3):617. |
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| 作者姓名： | 刘建睿 王猛 尹大川 黄卫东 |
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| 作者单位： | 西北工业大学凝固技术国家重点实验室, 西安 710072 |
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| 摘 要： | 以ＬｉＮＯ３和ＮＨ４ＶＯ３为原料,通过溶胶－凝胶法制备了层状锂钒氧化物ＬｉＶ３Ｏ８锂离子电池正极材料,通过ＴＧ－ＤＴＧ、ＸＲＤ等考察了合成条件对产物首次放电比容量的影响．实验结果表明,在４５０℃左右热分解２０ｈ可得到单一相产物ＬｉＶ３Ｏ８,其层状结构较为完整,电化学性能好,首次放电比容量可达３５０ｍＡｈ·ｇ－１,作为高能锂离子电池正极材料较为理想．
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| 关 键 词： | 锂离子电池 锂钒氧化物 热分解 比容量 |
| 收稿时间： | 2001-04-26 |
| 修稿时间： | 2001-07-02 |
Low-temperature Synthesis of LiV3O8 as Cathode Material for Rechargeable Lithium-ion Batteries |
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| LIU Jian-Rui,WANG Meng,YIN Da-Chuan,HUANG Wei-Dong.Low-temperature Synthesis of LiV3O8 as Cathode Material for Rechargeable Lithium-ion Batteries[J].Journal of Inorganic Materials,2002,17(3):617. |
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| Authors: | LIU Jian-Rui WANG Meng YIN Da-Chuan HUANG Wei-Dong |
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| Affiliation: | State Key Laboratory of Solidification Processing; Northwestern Polytechnicaj University; Xi an 710072; China |
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| Abstract: | Layered-type compound of lithium vanadium oxide LiV3O8 was synthesized at about 450℃ by the sol-gel method with LiNO_3 and NH3VO3 as raw materials. The influences of synthesis conditions on the first dischargeable specific capacities of the products were discussed by means of TG--DTG and XRD. The experimental results indicate that the product LiV3O8 obtained under the optimum synthesis conditions has perfect layered-type structure and good electrochemical property, its first discharge specific capacity is 350mAh·g-1. It is an excellent cathode material for high-energy, long-life, rechargeable lithium-ion batteries. |
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| Keywords: | lithium-ion batteries lithium vanadium oxide heat discomposition specific capacity |
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