阳极
纳米孔
材料科学
锂(药物)
法拉第效率
涂层
图层(电子)
枝晶(数学)
纳米颗粒
纳米技术
金属锂
金属
化学工程
电极
化学
冶金
物理化学
内分泌学
工程类
医学
数学
几何学
作者
Wei Liu,Weiyang Li,Denys Zhuo,Guangyuan Zheng,Zhenda Lu,Kai Li,Yi Cui
出处
期刊:ACS central science
[American Chemical Society]
日期:2017-02-08
卷期号:3 (2): 135-140
被引量:162
标识
DOI:10.1021/acscentsci.6b00389
摘要
Lithium metal based batteries represent a major challenge and opportunity in enabling a variety of devices requiring high-energy-density storage. However, dendritic lithium growth has limited the practical application of lithium metal anodes. Here we report a nanoporous, flexible and electrochemically stable coating of silica@poly(methyl methacrylate) (SiO2@PMMA) core–shell nanospheres as an interfacial layer on lithium metal anode. This interfacial layer is capable of inhibiting Li dendrite growth while sustaining ionic flux through it, which is attributed to the nanoscaled pores formed among the nanospheres. Enhanced Coulombic efficiencies during lithium charge/discharge cycles have been achieved at various current densities and areal capacities.
科研通智能强力驱动
Strongly Powered by AbleSci AI