December 20, 2013
Journal Article

Direct Visualization of Initial SEI Morphology and Growth Kinetics During Lithium Deposition by in situ Electrochemical Transmission Electron Microscopy

Abstract

Deposition of Li is a major safety concern existing in Li-ion secondary batteries. Here we perform the first in situ high spatial resolution measurement coupled with real-time quantitative electrochemistry to characterize SEI formation on gold using a standard battery electrolyte. We demonstrate that a dendritic SEI forms prior to Li deposition and that it remains on the surface after Li electrodissolution.

Revised: March 19, 2014 | Published: December 20, 2013

Citation

Sacci R.L., N.J. Dudney, K.L. More, L.R. Parent, I. Arslan, N.D. Browning, and R.R. Unocic. 2013. Direct Visualization of Initial SEI Morphology and Growth Kinetics During Lithium Deposition by in situ Electrochemical Transmission Electron Microscopy. Chemical Communications 50, no. 17:2104-2107. PNNL-SA-100306. doi:10.1039/c3cc49029g