金属锂
阳极
锂(药物)
复合数
金属
材料科学
磷酸钒锂电池
法拉第效率
电化学
化学工程
电极
无机化学
锂离子电池
复合材料
冶金
化学
物理化学
工程类
内分泌学
医学
作者
Shaobo Huang,Long Chen,Tianshuai Wang,Jie Hu,Qianfan Zhang,Hao Zhang,Nan Chen,Li‐Zhen Fan
出处
期刊:Nano Letters
[American Chemical Society]
日期:2020-12-30
卷期号:21 (1): 791-797
被引量:53
标识
DOI:10.1021/acs.nanolett.0c04546
摘要
Constructing three-dimensional (3D) structural composite lithium metal anode by molten-infusion strategy is an effective strategy to address the severe problems of Li dendritic growth and huge volume changes. However, various challenges, including uncontrollable Li loading, dense inner structure, and low Li utilization, still need to be addressed for the practical application of 3D Li anode. Herein, we propose a self-propagating method, which is realized by a synergistic effect of chemical reaction and capillarity effect on porous scaffold surface, for fabricating a flexible 3D composite Li metal anode with high Li utilization ratio and controllable low Li loading. The composite 3D anode possesses controllable low loading (8.0–24.0 mAh cm–2) and uniform grid structure, realizing a stable cycling over 600 h at a high Li metal utilization ratio over 75%. The proposed strategy for fabricating composite 3D anode could promote the practical application of Li metal batteries.
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