Direct visualization of initial SEI morphology and growth kinetics during lithium deposition by in situ electrochemical transmission electron microscopy

Journal Article · Fri Dec 20 00:00:00 EST 2013 · ChemComm

DOI:https://doi.org/10.1039/c3cc49029g· OSTI ID:1126543

Sacci, Robert L. ^[1]; Dudney, Nancy J. ^[1]; More, Karren L. ^[2]; Parent, Lucas R. ^[3]; Arslan, Ilke ^[3]; Browning, Nigel D. ^[3]; Unocic, Raymond R. ^[2]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science adn Technology Division
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science
3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Fundamental and Computational Sciences Directorate

Deposition of Li is a major safety concern existing in Li-ion secondary batteries. 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 also demonstrate that a dendritic SEI forms prior to Li deposition and that it remains on the surface after Li electrodissolution.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1126543
• Journal Information: ChemComm, Vol. 50, Issue 17; ISSN 1359-7345
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
25 ENERGY STORAGE