A writable lithium metal ink
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tps://doi.org/10.1007/s11426-020-9810-1
SPECIAL ISSUE: 2020 Emerging Investigator Issue
A writable lithium metal ink Wangyan Wu, Jian Duan, Jiayun Wen, Yuwei Chen, Xuyang Liu, Liqiang Huang, * Zhengfeng Wang, Shengyuan Deng, Yunhui Huang & Wei Luo Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China Received May 3, 2020; accepted July 2, 2020; published online July 27, 2020
The recent revival of Li metal anodes (LMA) leads to a renewed interest in LMA as the ultimate choice for rechargeable lithium batteries towards high energy density. However, multiple challenges stand in the way of using LMA, of which high reactivity, dendrite growth, the difficulty of fabricating Li thin foils, and the flammability of organic liquid electrolytes are typical. Here, a writable Li metal ink (LMI) prepared by introducing biomass-derived carbon particles into molten Li is presented. Due to the significantly decreased surface tension, LMI is able to directly write on copper foils or other substrates that ultrathin Li foils with a remarkably small thickness (
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