材料科学
阳极
电解质
锂(药物)
金属锂
图层(电子)
溶解
化学工程
纳米技术
氧化物
电镀(地质)
枝晶(数学)
碳纳米管
电极
化学
冶金
内分泌学
物理化学
几何学
工程类
地质学
医学
数学
地球物理学
作者
Huimin Zhang,Xiaobin Liao,Yuepeng Guan,Xiang Yu,Meng Li,Wenfeng Zhang,Xianjun Zhu,Hai Ming,Lin Lu,Jingyi Qiu,Yaqin Huang,Gaoping Cao,Yusheng Yang,Liqiang Mai,Yan Zhao,Hao Zhang
标识
DOI:10.1038/s41467-018-06126-z
摘要
The long-standing issue of lithium dendrite growth during repeated deposition or dissolution processes hinders the practical use of lithium-metal anodes for high-energy density batteries. Here, we demonstrate a promising lithiophilic-lithiophobic gradient interfacial layer strategy in which the bottom lithiophilic zinc oxide/carbon nanotube sublayer tightly anchors the whole layer onto the lithium foil, facilitating the formation of a stable solid electrolyte interphase, and prevents the formation of an intermediate mossy lithium corrosion layer. Together with the top lithiophobic carbon nanotube sublayer, this gradient interfacial layer can effectively suppress dendrite growth and ensure ultralong-term stable lithium stripping/plating. This strategy is further demonstrated to provide substantially improved cycle performance in copper current collector, 10 cm2 pouch cell and lithium-sulfur batteries, which, coupled with a simple fabrication process and wide applicability in various materials for lithium-metal protection, makes the lithiophilic-lithiophobic gradient interfacial layer a favored strategy for next-generation lithium-metal batteries.
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