材料科学
阳极
锂(药物)
电解质
电化学
纳米颗粒
纳米技术
堆积
沉积(地质)
化学工程
电极
化学
有机化学
内分泌学
物理化学
古生物学
工程类
生物
医学
沉积物
作者
Gui‐Xian Liu,Jing Wan,Yang Shi,Huijuan Guo,Yuexian Song,Kecheng Jiang,Yu‐Guo Guo,Rui Wen,Li‐Jun Wan
标识
DOI:10.1002/aenm.202201411
摘要
Abstract The complicated problems confronted by lithium (Li) anode hinder the practical application of quasi‐solid‐state lithium‐sulfur (QSSLS) batteries. However, the interfacial processes and reaction mechanisms, which are still vague, pose challenges to disclose. Herein, the insoluble sulfides stacking and Li dendrites growth on the Li anode are real‐time monitored via in‐situ atomic force microscopy inside the working QSSLS batteries. In the LiNO 3 ‐added electrolyte, it is detected that the formation process of solid electrolyte interphase (SEI) involves two stages, forming loose nanoparticles (NPs, ≈102 nm) at the open circuit potential and dense NPs (≈74 nm) during discharging owing to the synergism of Li polysulfides (LiPSs) and LiNO 3 . The compact SEI film not only blocks the erosion of LiPSs but also homogenizes the Li deposition behaviors, leading to the electrochemical performance enhancement of QSSLS batteries. These straightforward insights uncover the additive‐manipulated morphological/chemical evolution and interfacial properties and thus facilitate the improvement of QSSLS batteries.
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