材料科学
法拉第效率
电解质
锂(药物)
相间
电化学
电流密度
枝晶(数学)
化学工程
电镀(地质)
剥离(纤维)
金属锂
快离子导体
电极
纳米技术
复合材料
物理化学
医学
化学
物理
几何学
数学
量子力学
地球物理学
生物
地质学
工程类
遗传学
内分泌学
作者
Qifa Gao,Dengxu Wu,Zhixuan Wang,Pushun Lu,Xiang Zhu,Tenghuan Ma,Yang Ming,Liquan Chen,Hong Li,Fan Wu
标识
DOI:10.1016/j.ensm.2023.103007
摘要
Lithium dendrite growth in solid electrolytes (SEs) is one of the most serious challenges to the commercialization of all-solid-state lithium-metal batteries(ASSLMBs) with SEs. Herein, we propose an electrochemical strategy to realize an in-situ modified solid electrolyte interphase (SEI) that can simultaneously resolve both interfacial and dendrite issues. By controlling the current and deposition time in electrochemical treatment, ordered reaction between lithium metal and Si3N4 particles are realized to effectively produce a Li3N-LiF-rich multifunctional composit including Li−Si alloys. The consequent symmetric cells demonstrated a remarkably high critical current density up to 3.3mA cm−2 at room temperature and stable plating/stripping process over 1200h at a current density of 0.5mA cm−2. Moreover, LiCoO2/Li6PS5Cl/Li ASSLMBs delivered a high safety and long life of more than 500 cycles at 1.0mA cm−2 with a steady coulombic efficiency.
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