Enabling high performance lithium storage in aluminum: The double edged surface oxide
发布时间：2020-05-23
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影响因子：15.548
DOI码：10.1016/j.nanoen.2017.10.017
所属单位：Peking Univ
发表刊物：Nano Energy
摘要：Aluminum is an attractive anode material for lithium ion batteries due to its low cost, high capacity and low equilibrium potential for lithiation/delithiation. The compact surface oxide layer is usually considered to be detrimental for lithium storage in Al due to its poor conductivity for Li+. Here we show that the Al oxide layer, which is positively charged, can be utilized to assist the homogeneous loading of the Al nanoparticles on to the negatively charged graphene oxide (GO) sheets. During the thermal reduction of GO to reduced GO (rGO), anhydrous HCl is introduced to selectively remove the surface oxide on the Al particles. The vitalized Al/rGO composite exhibits high lithium storage capacity of 1041 mAh g(-1) after 500 cycles at current density of 500 mA g(-1). The results demonstrate how the double edged surface oxide layer on Al nanoparticles can be manipulated to enable high performance lithium storage in Al, which is illuminating for the application of Al as a high performance, low cost anode material for lithium ion batteries.
合写作者：Xinyao, Zheng, Zhiliang, Liu, Zewei, Xie
第一作者：Xinghua, Chang
论文类型：期刊论文
通讯作者：Xingguo, 邹理, Jie, Zheng
一级学科：0805 材料科学与工程
文献类型：J
是否译文：否
发表时间：2017-11-01