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Title: Structure of spontaneously formed solid-electrolyte interphase on lithiated graphite determined using small-angle neutron scattering

Journal Article · · Journal of Physical Chemistry. C

We report the first small-angle neutron scattering of a chemically formed solid-electrolyte interphase from LixC6 reacting with ethylene carbonate/dimethyl carbon solvent. This provides a different and perhaps simpler view of SEI formation than the usual electrochemically-driven reaction. We show that an organic layer coats the graphite particles filling in micro-pores and is polymeric in nature being 1-3 nm thick. We used inelastic neutron scattering to probe the chemistry, and we found that the SEI showed similar inelastic scattering to polyethylene oxide.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1185815
Journal Information:
Journal of Physical Chemistry. C, Vol. 119, Issue 18; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

References (25)

Building better batteries journal February 2008
Electrode–solution interactions in Li-ion batteries: a short summary and new insights journal June 2003
The Correlation Between the Surface Chemistry and the Performance of Li-Carbon Intercalation Anodes for Rechargeable ‘Rocking-Chair’ Type Batteries journal January 1994
A short review of failure mechanisms of lithium metal and lithiated graphite anodes in liquid electrolyte solutions journal June 2002
A Study of Electrochemical Reduction of Ethylene and Propylene Carbonate Electrolytes on Graphite Using ATR-FTIR Spectroscopy journal January 2005
Investigation of the Electrochemical Windows of Aprotic Alkali Metal (Li, Na, K) Salt Solutions journal January 2001
Direct visualization of initial SEI morphology and growth kinetics during lithium deposition by in situ electrochemical transmission electron microscopy journal January 2014
Nanoscale Imaging of Fundamental Li Battery Chemistry: Solid-Electrolyte Interphase Formation and Preferential Growth of Lithium Metal Nanoclusters journal February 2015
Structure Analysis by Small-Angle X-Ray and Neutron Scattering book January 1987
Vibrational Spectroscopy with Neutrons book June 2005
Characterization of the neutron detector upgrade to the GP-SANS and Bio-SANS instruments at HFIR
  • Berry, Kevin D.; Bailey, Katherine M.; Beal, Justin
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 693 https://doi.org/10.1016/j.nima.2012.06.052
journal November 2012
The 40 m general purpose small-angle neutron scattering instrument at Oak Ridge National Laboratory journal August 2012
Resolution of VISION, a crystal-analyzer spectrometer
  • Seeger, Philip A.; Daemen, Luke L.; Larese, John Z.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 604, Issue 3 https://doi.org/10.1016/j.nima.2009.03.204
journal June 2009
A comparison of electrochemical performance of natural graphite sulfurized by ball-milling and heat-treating as an anode for lithium ion batteries journal November 2009
Dry Synthesis of Lithium Intercalated Graphite Powder and Fiber journal January 2014
Small-Angle X-Ray-Scattering Investigation of Submicroscopic Porosity with Fractal Properties journal August 1984
Small-angle scattering by fractal systems journal December 1988
Inelastic neutron scattering, Raman and DFT investigations of the adsorption of phenanthrenequinone on onion-like carbon journal February 2013
Infrared and Raman spectra and vibrational assignment of ethylene carbonate journal September 1971
Structure, vibrational-dynamics and first-principles study of diglyme as a model system for poly(ethyleneoxide) journal April 2002
Lithium Ethylene Dicarbonate Identified as the Primary Product of Chemical and Electrochemical Reduction of EC in 1.2 M LiPF 6 /EC:EMC Electrolyte journal September 2005
Electrochemical and Infrared Studies of the Reduction of Organic Carbonates journal January 2001
PRINSAS – a Windows-based computer program for the processing and interpretation of small-angle scattering data tailored to the analysis of sedimentary rocks journal November 2004
Direct Visualization of Solid Electrolyte Interphase Formation in Lithium-Ion Batteries with In Situ Electrochemical Transmission Electron Microscopy journal July 2014
Visualization of Electrode–Electrolyte Interfaces in LiPF 6 /EC/DEC Electrolyte for Lithium Ion Batteries via in Situ TEM journal March 2014

Cited By (2)

Li-ion half-cells studied operando during cycling by small-angle neutron scattering journal February 2020
Contrast Matched SANS for Observing SEI and Pore Clogging in Silicon-Graphite Anodes journal January 2019