阳极
材料科学
法拉第效率
枝晶(数学)
电化学
电解质
金属
锂(药物)
化学工程
动力学
电镀(地质)
金属锂
纳米技术
冶金
电极
物理化学
化学
工程类
内分泌学
几何学
地质学
物理
医学
量子力学
数学
地球物理学
作者
Yehu Han,Yulin Jie,Fanyang Huang,Yawei Chen,Zhanwu Lei,Genqiang Zhang,Xiaodi Ren,Lianjie Qin,Ruiguo Cao,Shuhong Jiao
标识
DOI:10.1002/adfm.201904629
摘要
Abstract The surface morphology of Li metal anode significantly dictates the stability and safety of Li metal batteries. The key parameters for morphological control and causes for dendritic growth of Li anode are still not clear. Although the plating kinetics is generally believed to be associated with Li growth habits, the detailed models are still not well defined. In this work, the temperature effect on the stability and efficiency of Li anode is systematically investigated in a variety of electrolyte composition for Li metal batteries. A dendrite‐free growth mechanism is observed, and a high Coulombic efficiency up to ≈99.4% in Li||Cu cells is achieved by tuning the deposition behaviors at elevated temperatures. The results provide insights into the Li dendrite growth mechanism and general principle for developing stable Li anode.
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