过电位
阳极
材料科学
电解质
金属锂
金属
纳米技术
氮化物
纳米-
化学工程
电流密度
图层(电子)
复合材料
电极
化学
冶金
电化学
物理
工程类
物理化学
量子力学
作者
Shuo Zhang,Hanlin Liao,Zhiqun Liu,Chong Yan,Jia‐Qi Huang
标识
DOI:10.1016/j.cclet.2023.109284
摘要
Anode free lithium metal batteries (AF-LMBs) have conspicuous advantages both in energy density and the compatibility of battery manufacturing process. However, the limited cycle life of AF-LMBs is a crucial factor hindering its practical application. Fluorinated or nitride artificial inorganic solid electrolyte interphase (SEI) has been found as an effective method to prolong the lifespan of AF-LMBs. Herein, by investigating the impact of nano-sized inorganic gradient layers (LiF or Li3N) on initial Li deposition behavior, we notice that the Li+ diffusion barrier and the deposition morphology are highly depended on the thickness of inorganic layers. Thicker protective layers cause larger overpotential as well as more aggregated Li+ distribution. This study reveals that the ideal SEI should be synthesized thin and uniformly enough and uncontrollable artificial SEI can cause damage to the lifespan of AF-LMBs.
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