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发表于 2012-11-26 11:41:19 | 显示全部楼层 |阅读模式
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标 题:Improving the Electrode Performance of Ge through Ge@C Core–Shell Nanoparticles
作 者:Ding-Jiang Xue , Sen Xin , Yang Yan , Ke-Cheng Jiang , Ya-Xia Yin , Yu-Guo Guo *, and Li-Jun Wan *
期刊名称: American Chemical Society
期卷页:   第卷 第期 ~页
摘 要:Germanium is a promising high-capacity anode material for lithium ion batteries, but it usually exhibits poor cycling stability because of its huge volume variation during the lithium uptake and release process. A double protection strategy to improve the electrode performance of Ge through the use of Ge@C core–shell nanostructures and reduced graphene oxide (RGO) networks has been developed. The as-synthesized Ge@C/RGO nanocomposite showed excellent cycling performance and rate capability in comparison with Ge@C nanoparticles when used as an anode material for Li ion batteries, which can be attributed to the electronically conductive and elastic RGO networks in addition to the carbon shells and small particle sizes of Ge. The strategy is simple yet very effective, and because of its versatility, it may be extended to other high-capacity electrode materials with large volume variations and low electrical conductivities.
文献频道链接:http://doc.sciencenet.cn/DocInfo.aspx?id=15219
原文链接:http://pubs.acs.org/doi/abs/10.1021/ja211266m
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发表于 2012-11-26 11:41:20 | 显示全部楼层
ja211266m.pdf (318.14 KB, 下载次数: 4)
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 楼主| 发表于 2012-12-2 20:44:59 | 显示全部楼层
谢谢你了  我收到了
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