电池(电)
肿胀 的
材料科学
锂(药物)
相间
快离子导体
电极
纳米技术
金属锂
化学工程
电解质
阳极
复合材料
电化学
化学
工程类
医学
功率(物理)
物理
物理化学
量子力学
生物
遗传学
内分泌学
作者
Zewen Zhang,Yuzhang Li,Rong Xu,Weijiang Zhou,Yanbin Li,Solomon T. Oyakhire,Yecun Wu,Jingdong Xu,Hansen Wang,Zhiao Yu,David T. Boyle,William Huang,Yusheng Ye,Hao Chen,Jiayu Wan,Zhenan Bao,Wah Chiu,Yi Cui
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2022-01-07
卷期号:375 (6576): 66-70
被引量:189
标识
DOI:10.1126/science.abi8703
摘要
Although liquid-solid interfaces are foundational in broad areas of science, characterizing this delicate interface remains inherently difficult because of shortcomings in existing tools to access liquid and solid phases simultaneously at the nanoscale. This leads to substantial gaps in our understanding of the structure and chemistry of key interfaces in battery systems. We adopt and modify a thin film vitrification method to preserve the sensitive yet critical interfaces in batteries at native liquid electrolyte environments to enable cryo–electron microscopy and spectroscopy. We report substantial swelling of the solid-electrolyte interphase (SEI) on lithium metal anode in various electrolytes. The swelling behavior is dependent on electrolyte chemistry and is highly correlated to battery performance. Higher degrees of SEI swelling tend to exhibit poor electrochemical cycling.
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