| Purification process of coal-based coke powder as anode for Li-ion batteries简 |
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| 引用本文： | 杨娟,马路路,周向阳.Purification process of coal-based coke powder as anode for Li-ion batteries简[J].中南工业大学学报(英文版),2014(3):857-861. |
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| 作者姓名： | 杨娟 马路路 周向阳 |
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| 基金项目： | Projects（51274240, 51204209） supported by the National Natural Science Foundation of China; Project（2012M521545） supported by the National Postdoctoral Science Foundation of China |
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| 摘 要： | A process of purification of coal-based coke powder as anode the treatment of coke powder with dilute hydrofluoric acid solution, for Li-ion batteries was attempted. The process started with followed by united-acid-leaching using sulfuric acid and hydrochloric acid. The effects of altering the hydrofluoric acid addition, hydrofluoric acid concentration, contact time, temperature and acid type were investigated. A minimum ash content of 0.35% was obtained when proper conditions were applied. The electrochemical performance of purified coke powder shows greatly improved electrochemical performance. The as-purified coke powder presented an initial reversible capacity of 257.4 mAh/g and a retention rate of 95% after 50 cycles. The proposed purification process paves a way to prepare a promising anode material with good performance with low cost of coke powder for Li-ion batteries.
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| 关 键 词： | 锂离子电池 提纯工艺 焦粉 阳极 煤基 电化学性能 净化过程 氢氟酸 |
Purification process of coal-based coke powder as anode for Li-ion batteries |
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| YANG Juan,MA Lu-lu,ZHOU Xiang-yang.Purification process of coal-based coke powder as anode for Li-ion batteries[J].Journal of Central South University of Technology,2014(3):857-861. |
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| Authors: | YANG Juan MA Lu-lu ZHOU Xiang-yang |
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| Affiliation: | [1]Powder Metallurgy Research Institute, Central South University, Changsha 410083, China [2]School of Metalllurgy and Environment, Central South University, Changsha 410083, China |
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| Abstract: | purification process coal-based coke powder anode material Li-ion batteries |
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| Keywords: | purification process coal-based coke powder anode material Li-ion batteries |
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