材料科学
阳极
复合数
枝晶(数学)
分离器(采油)
静电纺丝
电镀(地质)
剥离(纤维)
金属锂
锂(药物)
电流密度
金属
复合材料
化学工程
冶金
电极
化学
医学
几何学
数学
物理
物理化学
量子力学
内分泌学
地球物理学
热力学
地质学
聚合物
工程类
作者
Yun Ou,Chaoyong Ma,Zhiyong Tang,Chenqi Yao,Yingjie Zhao,Junfang Cheng
出处
期刊:Nanomaterials
[MDPI AG]
日期:2023-10-17
卷期号:13 (20): 2782-2782
摘要
Dendrite growth has been the main trouble preventing the practical application of Li metal anodes. Herein, we present how an Fe3O4-PVDF composite network prepared by using electrospinning has been designed to protect lithium metal anodes effectively. In the symmetrical cells test, the cell with the Fe3O4-PVDF composite network maintains good cycle performance after 600 h (500 cycles) at a current density of 1 mA cm−2 and a plating/stripping capacity of 1 mAh cm−2. The bulky Li dendrite is suppressed and a uniform Li deposition remains after long cycling. The characteristics of this engineered separator are further demonstrated in Li-S full cells with a good cycle performance (capacity of 419 mAh g−1 after 300 cycles at 0.5 C). This work provides a new idea for the protection of lithium metal anodes.
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