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Title: Intrinsic Properties of Individual Constituents of Silicon-Electrolyte Interphase

Abstract

The stabilization of a solid electrolyte interphase (SEI) is one of the great challenges to utilize superior theoretical capacity (about 3,600 mAh g-1, almost 10 times higher than that of graphite) of a silicon (Si) as an anode in a next-generation advanced lithium-ion battery (LIB). A SEI remains a poorly understood and hardly studied topic relative to the research devoted to battery components due to its intrinsic properties of complexity, reactivity and continuous evolution. However, the SEI plays a key role in prevention of further electrolyte reduction and desolvation of Li+ ions, which is directly related to electrochemical performance, lifetime and safety of batteries. For example, the unstable SEI on a Si anode leads to initial irreversible capacity losses, poor cycling stability and a limited cycle life. 2-4 In this study each 'individual' component of SEI on a Si anode was prepared as a thin film, and the physical, electrochemical, mechanical and structural properties of prepared films were characterized using a variety of analytical equipment including electrochemical impedance spectroscopy, operando X-ray photoelectron spectroscopy, atomic force microscope, Fourier-transform infrared spectroscopy, scanning spreading resistance microscopy and time-of-flight secondary ion mass spectrometry. This study can provide a strong guidance to aid in themore » development of new electrolytes, additives and binders to stabilize SEI layer on a silicon anode by identifying beneficial components and providing mechanical explanation of a variety of reactions and phenomena in a SEI.« less

Authors:
 [1];  [1];  [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1477587
Report Number(s):
NREL/PO-5900-72536
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at AiMES 2018, 30 September - 4 October 2018, Cancun, Mexico
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; solid electrolyte interphase; SEI; graphite; silicon; electrolyte reduction; batteries; thin film

Citation Formats

Han, Sang Don, Wood, Kevin, Stetson, Caleb, Coyle, Jaclyn E, Xu, Yun, Norman, Andrew, Harvey, Steven P, Teeter, Glenn R, Zakutayev, Andriy A, and Al-Jassim, Mowafak M. Intrinsic Properties of Individual Constituents of Silicon-Electrolyte Interphase. United States: N. p., 2018. Web.
Han, Sang Don, Wood, Kevin, Stetson, Caleb, Coyle, Jaclyn E, Xu, Yun, Norman, Andrew, Harvey, Steven P, Teeter, Glenn R, Zakutayev, Andriy A, & Al-Jassim, Mowafak M. Intrinsic Properties of Individual Constituents of Silicon-Electrolyte Interphase. United States.
Han, Sang Don, Wood, Kevin, Stetson, Caleb, Coyle, Jaclyn E, Xu, Yun, Norman, Andrew, Harvey, Steven P, Teeter, Glenn R, Zakutayev, Andriy A, and Al-Jassim, Mowafak M. Tue . "Intrinsic Properties of Individual Constituents of Silicon-Electrolyte Interphase". United States. https://www.osti.gov/servlets/purl/1477587.
@article{osti_1477587,
title = {Intrinsic Properties of Individual Constituents of Silicon-Electrolyte Interphase},
author = {Han, Sang Don and Wood, Kevin and Stetson, Caleb and Coyle, Jaclyn E and Xu, Yun and Norman, Andrew and Harvey, Steven P and Teeter, Glenn R and Zakutayev, Andriy A and Al-Jassim, Mowafak M},
abstractNote = {The stabilization of a solid electrolyte interphase (SEI) is one of the great challenges to utilize superior theoretical capacity (about 3,600 mAh g-1, almost 10 times higher than that of graphite) of a silicon (Si) as an anode in a next-generation advanced lithium-ion battery (LIB). A SEI remains a poorly understood and hardly studied topic relative to the research devoted to battery components due to its intrinsic properties of complexity, reactivity and continuous evolution. However, the SEI plays a key role in prevention of further electrolyte reduction and desolvation of Li+ ions, which is directly related to electrochemical performance, lifetime and safety of batteries. For example, the unstable SEI on a Si anode leads to initial irreversible capacity losses, poor cycling stability and a limited cycle life. 2-4 In this study each 'individual' component of SEI on a Si anode was prepared as a thin film, and the physical, electrochemical, mechanical and structural properties of prepared films were characterized using a variety of analytical equipment including electrochemical impedance spectroscopy, operando X-ray photoelectron spectroscopy, atomic force microscope, Fourier-transform infrared spectroscopy, scanning spreading resistance microscopy and time-of-flight secondary ion mass spectrometry. This study can provide a strong guidance to aid in the development of new electrolytes, additives and binders to stabilize SEI layer on a silicon anode by identifying beneficial components and providing mechanical explanation of a variety of reactions and phenomena in a SEI.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}

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