| 表面包覆技术对微晶石墨嵌锂行为的影响 |
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| 引用本文： | 李新禄,杜坤,张育新,黄佳木. 表面包覆技术对微晶石墨嵌锂行为的影响[J]. 功能材料, 2010, 41(4) |
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| 作者姓名： | 李新禄 杜坤 张育新 黄佳木 |
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| 作者单位： | 重庆大学,材料科学与工程学院,重庆,400030;重庆大学,材料科学与工程学院,重庆,400030;重庆大学,材料科学与工程学院,重庆,400030;重庆大学,材料科学与工程学院,重庆,400030 |
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| 基金项目： | 重庆市自然科学基金资助项目(CSTC,2009BB4206) |
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| 摘 要： | 鉴于天然微晶石墨资源丰富,嵌锂容量较高的特点,对天然微晶石墨进行了粉体分级和表面包覆处理,以提高微晶石墨用作锂离子电池负极材料的首次循环效率、可逆容量和使用寿命。实验表明,微晶石墨经过颗粒分级和表面包覆碳膜的处理后,其首次循环效率提高至90%,循环稳定性也得到了明显改善。
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| 关 键 词： | 微晶石墨 表面包覆 负极材料 锂离子电池 |
Influence of surface coating on the behavior of Li+ intercalation for microcrystalline graphite |
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| LI Xin-lu,DU Kun,ZHANG Yu-xin,HUANG Jia-mu. Influence of surface coating on the behavior of Li+ intercalation for microcrystalline graphite[J]. Journal of Functional Materials, 2010, 41(4) |
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| Authors: | LI Xin-lu DU Kun ZHANG Yu-xin HUANG Jia-mu |
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| Affiliation: | College of Materials Science and Engineering;Chongqing University;Chongqing 400030;China |
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| Abstract: | In view of rich source and high capacity,natural microcrystalline graphite were treated by particle grading and surface coating in order to improve the initial cycle efficiency,reversible capacity and cycle life as an anode material for lithium ion battery.The experiments results proved that the first cycle efficiency of microcrystalline graphite was increased to be 90% and cycle stability was also improved after particle grading and surface coating. |
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| Keywords: | microcrystalline graphite surface coating anode materials lithium ion battery |
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