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Visualization of electrode-electrolyte interfaces in LiPF 6/EC/DEC electrolyte for lithium ion batteries via in situ TEM
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Visualization of electrode-electrolyte interfaces in LiPF 6/EC/DEC electrolyte for lithium ion batteries via in situ TEM

Zhiyuan Zeng, Wen-I Liang, Hong-Gang Liao, Huolin L. Xin, Yin-Hao Chu 和 Haimei Zheng
Nano Letters, 卷.14(4), 頁碼.1745-1750
04/2014
DOI: https://doi.org/10.1021/nl403922u

摘要

electrochemical liquid cell Liquid cell TEM lithium dendrite lithium ion batteries solid-electrolyte interface Bioengineering Chemistry (all) Materials Science (all) Condensed Matter Physics Mechanical Engineering
We report direct visualization of electrochemical lithiation and delithiation of Au anodes in a commercial LiPF 6 /EC/DEC electrolyte for lithium ion batteries using transmission electron microscopy (TEM). The inhomogeneous lithiation, lithium metal dendritic growth, electrolyte decomposition, and solid-electrolyte interface (SEI) formation are observed in situ. These results shed lights on strategies of improving electrode design for reducing short-circuit failure and improving the performance of lithium ion batteries. © 2014 American Chemical Society.

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