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Title: In Situ Measurement of the Plane-Strain Modulus of the Solid Electrolyte Interphase on Lithium-Metal Anodes in Ionic Liquid Electrolytes

Abstract

In this paper, we present an experimental approach for in situ measurement of elastic modulus of the solid electrolyte interphase (SEI), which is formed from reactions between a lithium thin-film [on a polydimethylsiloxane (PDMS) substrate] and a room-temperature ionic liquid (RTIL) electrolyte. The SEI forms under a state of compressive stress, which causes buckling of the sample surface. In situ atomic force microscopy is used to measure the dominant wavelength of the wrinkled surface topography. A mechanics analysis of strain-induced elastic buckling instability of a stiff thin film on a soft substrate is used to determine the plane strain modulus of the SEI from the measured wavelength. The measurements are performed for three RTIL electrolytes: 1-butyl 1-methylpiperidinium bis(trifluoromethylsulfonyl)imide (P 14 TFSI) without any lithium salt, 1.0 M lithium bis(trifluoromethylsulfonyl)imide (Li TFSI) in P 14 TFSI, and 1.0 M lithium bis(fluorosulfonyl)imide (Li FSI) in P 14 TFSI to investigate the influence of lithium salts on the plane strain modulus of the SEI. The measurements yield plane-strain moduli of approximately 1.3 GPa for no-salt P 14 TFSI and approximately 1.6 GPa for 1.0 M Li TFSI in P 14 TFSI and 1.0 M Li FSI in P 14 TFSI. Finally, the experimentalmore » technique presented here eliminates some of the uncertainties associated with traditional SEI mechanical characterization approaches and offers a platform to engineer an SEI with desired mechanical properties by approaches that include altering the electrolyte composition.« less

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [2];  [1]
  1. Brown Univ., Providence, RI (United States)
  2. Univ. of Rhode Island, Kingston, RI (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Experimental Program to Stimulate Competitive Research (EPSCoR)
OSTI Identifier:
1493711
Grant/Contract Number:  
AC02-06CH11357; SC0007074
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 18; Journal Issue: 9; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; atomic force microscopy; elastic modulus; ionic liquid electrolytes; lithium metal anodes; solid electrolyte interphase

Citation Formats

Yoon, Insun, Jurng, Sunhyung, Abraham, Daniel P., Lucht, Brett L., and Guduru, Pradeep R. In Situ Measurement of the Plane-Strain Modulus of the Solid Electrolyte Interphase on Lithium-Metal Anodes in Ionic Liquid Electrolytes. United States: N. p., 2018. Web. doi:10.1021/acs.nanolett.8b02363.
Yoon, Insun, Jurng, Sunhyung, Abraham, Daniel P., Lucht, Brett L., & Guduru, Pradeep R. In Situ Measurement of the Plane-Strain Modulus of the Solid Electrolyte Interphase on Lithium-Metal Anodes in Ionic Liquid Electrolytes. United States. doi:10.1021/acs.nanolett.8b02363.
Yoon, Insun, Jurng, Sunhyung, Abraham, Daniel P., Lucht, Brett L., and Guduru, Pradeep R. Mon . "In Situ Measurement of the Plane-Strain Modulus of the Solid Electrolyte Interphase on Lithium-Metal Anodes in Ionic Liquid Electrolytes". United States. doi:10.1021/acs.nanolett.8b02363. https://www.osti.gov/servlets/purl/1493711.
@article{osti_1493711,
title = {In Situ Measurement of the Plane-Strain Modulus of the Solid Electrolyte Interphase on Lithium-Metal Anodes in Ionic Liquid Electrolytes},
author = {Yoon, Insun and Jurng, Sunhyung and Abraham, Daniel P. and Lucht, Brett L. and Guduru, Pradeep R.},
abstractNote = {In this paper, we present an experimental approach for in situ measurement of elastic modulus of the solid electrolyte interphase (SEI), which is formed from reactions between a lithium thin-film [on a polydimethylsiloxane (PDMS) substrate] and a room-temperature ionic liquid (RTIL) electrolyte. The SEI forms under a state of compressive stress, which causes buckling of the sample surface. In situ atomic force microscopy is used to measure the dominant wavelength of the wrinkled surface topography. A mechanics analysis of strain-induced elastic buckling instability of a stiff thin film on a soft substrate is used to determine the plane strain modulus of the SEI from the measured wavelength. The measurements are performed for three RTIL electrolytes: 1-butyl 1-methylpiperidinium bis(trifluoromethylsulfonyl)imide (P14 TFSI) without any lithium salt, 1.0 M lithium bis(trifluoromethylsulfonyl)imide (Li TFSI) in P14 TFSI, and 1.0 M lithium bis(fluorosulfonyl)imide (Li FSI) in P14 TFSI to investigate the influence of lithium salts on the plane strain modulus of the SEI. The measurements yield plane-strain moduli of approximately 1.3 GPa for no-salt P14 TFSI and approximately 1.6 GPa for 1.0 M Li TFSI in P14 TFSI and 1.0 M Li FSI in P14 TFSI. Finally, the experimental technique presented here eliminates some of the uncertainties associated with traditional SEI mechanical characterization approaches and offers a platform to engineer an SEI with desired mechanical properties by approaches that include altering the electrolyte composition.},
doi = {10.1021/acs.nanolett.8b02363},
journal = {Nano Letters},
issn = {1530-6984},
number = 9,
volume = 18,
place = {United States},
year = {2018},
month = {8}
}

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Works referencing / citing this record:

Recent Progress of Metal–Air Batteries—A Mini Review
journal, July 2019

  • Wang, Chunlian; Yu, Yongchao; Niu, Jiajia
  • Applied Sciences, Vol. 9, Issue 14
  • DOI: 10.3390/app9142787

Recent Progress of Metal–Air Batteries—A Mini Review
journal, July 2019

  • Wang, Chunlian; Yu, Yongchao; Niu, Jiajia
  • Applied Sciences, Vol. 9, Issue 14
  • DOI: 10.3390/app9142787