Fe3O4-PVDF Composite Network for Dendrite-Free Lithium Metal Batteries

被引：0
作者：
Ou, Yun [1 ]
Ma, Chaoyong [2 ]
Tang, Zhiyong [1 ]
Yao, Chenqi [1 ]
Zhao, Yunzhuo [1 ]
Cheng, Juanjuan [1 ]
机构：
[1] Hunan Univ Sci & Technol, Hunan Prov Key Lab Adv Mat New Energy Storage & Co, Sch Mat Sci & Engn, Xiangtan 411201, Peoples R China
[2] Guizhou Meiling Power Source Co Ltd, 705 Zhonghua Rd, Zunyi 563003, Peoples R China
来源：
NANOMATERIALS | 2023年 / 13卷 / 20期
基金：
中国国家自然科学基金;
关键词：
lithium anode; electrospinning; Fe3O4; PVDF; dendrite-free; NUCLEATION; ANODE; ELECTRODEPOSITION; ELECTROLYTES; PERFORMANCE; SEPARATORS; GROWTH; HOST; ION;
D O I：
10.3390/nano13202782
中图分类号：
O6 [化学];
学科分类号：
0703 ;
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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页数：12
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