Visualization of Electrode–Electrolyte Interfaces in LiPF6/EC/DEC Electrolyte for Lithium Ion Batteries via in Situ TEM
Open Access
- 27 March 2014
- journal article
- letter
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 14 (4), 1745-1750
- https://doi.org/10.1021/nl403922u
Abstract
We report direct visualization of electrochemical lithiation and delithiation of Au anodes in a commercial LiPF6/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.Keywords
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