Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized 129Xe Nuclear Magnetic Resonance Spectroscopy

Mao, Yougang; Karan, Naba K.; Song, Myeonghun; Hopson, Russell; Guduru, Pradeep R.; Wang, Li-Qiong

doi:10.1021/acs.energyfuels.7b00250

Title: Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized ¹²⁹Xe Nuclear Magnetic Resonance Spectroscopy

Abstract

Solid electrolyte interphase (SEI) plays an important role in determining electrochemical performances of Li-ion batteries. The ideal SEI layer protects the electrolyte from being further reduced on the electrode surface and allows Li-ion diffusion in and out of electrodes without any consumption. However, degradation of the SEI layer over time, which contributes to the thickening of the SEI layer, is a leading pathway for gradual capacity fade. In this study, a hyperpolarized (HP) ¹²⁹Xe nuclear magnetic resonance (NMR) technique was applied for the first time to probe changes in porosity and connectivity in Si nanoparticle composite electrodes as a result of the SEI formation. Nanopores are present in nanocomposite electrodes as a result of aggregation of the constituting nanoparticles. The connectivity among nanopores greatly affects the ion transport property of the electrode materials, which has a substantial influence on the overall energy output of Li-ion batteries. Here, information on thickness, uniformity of the SEI layer, and connectivity of the pores in the composite electrodes upon growing SEI was obtained from the analysis of temperature-dependent HP ¹²⁹Xe NMR spectra. Such information is useful for gaining a better understanding of the degradation mechanism of SEI. This study demonstrates that HP ¹²⁹Xe NMRmore »« less

Authors:

Mao, Yougang ^[1]; Karan, Naba K. ^[1]; Song, Myeonghun ^[1]; Hopson, Russell ^[1]; Guduru, Pradeep R. ^[1];

^[1]

Brown Univ., Providence, RI (United States)

Publication Date:: Mon Apr 03 00:00:00 EDT 2017

Research Org.:: Brown Univ., Providence, RI (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1534483

Grant/Contract Number:: SC0007074; HRD-0548311

Resource Type:: Accepted Manuscript

Journal Name:: Energy and Fuels

Additional Journal Information:: Journal Volume: 31; Journal Issue: 5; Journal ID: ISSN 0887-0624

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; energy & fuels; engineering; semiconducting nanostructured materials; layers; nanoparticles; electrodes; surface chemistry

Citation Formats


                    Mao, Yougang, Karan, Naba K., Song, Myeonghun, Hopson, Russell, Guduru, Pradeep R., and Wang, Li-Qiong. Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized 129Xe Nuclear Magnetic Resonance Spectroscopy.  United States: N. p., 2017. 
Web.  doi:10.1021/acs.energyfuels.7b00250.

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                    Mao, Yougang, Karan, Naba K., Song, Myeonghun, Hopson, Russell, Guduru, Pradeep R., & Wang, Li-Qiong. Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized 129Xe Nuclear Magnetic Resonance Spectroscopy.  United States.  https://doi.org/10.1021/acs.energyfuels.7b00250

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                    Mao, Yougang, Karan, Naba K., Song, Myeonghun, Hopson, Russell, Guduru, Pradeep R., and Wang, Li-Qiong. Mon .  
"Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized 129Xe Nuclear Magnetic Resonance Spectroscopy".  United States.  https://doi.org/10.1021/acs.energyfuels.7b00250.  https://www.osti.gov/servlets/purl/1534483.

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@article{osti_1534483,

  title        = {Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized 129Xe Nuclear Magnetic Resonance Spectroscopy},

  author       = {Mao, Yougang and Karan, Naba K. and Song, Myeonghun and Hopson, Russell and Guduru, Pradeep R. and Wang, Li-Qiong},

  abstractNote = {Solid electrolyte interphase (SEI) plays an important role in determining electrochemical performances of Li-ion batteries. The ideal SEI layer protects the electrolyte from being further reduced on the electrode surface and allows Li-ion diffusion in and out of electrodes without any consumption. However, degradation of the SEI layer over time, which contributes to the thickening of the SEI layer, is a leading pathway for gradual capacity fade. In this study, a hyperpolarized (HP) 129Xe nuclear magnetic resonance (NMR) technique was applied for the first time to probe changes in porosity and connectivity in Si nanoparticle composite electrodes as a result of the SEI formation. Nanopores are present in nanocomposite electrodes as a result of aggregation of the constituting nanoparticles. The connectivity among nanopores greatly affects the ion transport property of the electrode materials, which has a substantial influence on the overall energy output of Li-ion batteries. Here, information on thickness, uniformity of the SEI layer, and connectivity of the pores in the composite electrodes upon growing SEI was obtained from the analysis of temperature-dependent HP 129Xe NMR spectra. Such information is useful for gaining a better understanding of the degradation mechanism of SEI. This study demonstrates that HP 129Xe NMR is a potentially unique tool in probing the porosity and connectivity changes in porous practical electrodes during electrochemical cycling.},

  doi          = {10.1021/acs.energyfuels.7b00250},

  journal      = {Energy and Fuels},

  number       = 5,

  volume       = 31,

  place        = {United States},

  year         = {Mon Apr 03 00:00:00 EDT 2017},

  month        = {Mon Apr 03 00:00:00 EDT 2017}

}

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https://doi.org/10.1021/acs.energyfuels.7b00250

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Cited by: 4 works

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Table I: ΔH_ads, δ_s and D values are listed based on the variable temperature chemical shift data

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Title: Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized 129Xe Nuclear Magnetic Resonance Spectroscopy

Abstract

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Title: Investigation of Solid Electrolyte Interphase Formed on Si Nanoparticle Composite Electrodes Using Hyperpolarized ¹²⁹Xe Nuclear Magnetic Resonance Spectroscopy