On the electrochemical and thermal behavior of lithium bis(oxalato)borate (LiBOB) solutions

L. Larush-Asraf; M. Biton; H. Teller; E. Zinigrad; D. Aurbach

doi:10.1016/j.jpowsour.2007.06.171

On the electrochemical and thermal behavior of lithium bis(oxalato)borate (LiBOB) solutions

L. Larush-Asraf, M. Biton, H. Teller, E. Zinigrad, D. Aurbach

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

In recent years, lithium bis(oxalato)borate, LiB(C₂O₄)₂ (LiBOB) has been proposed as an alternative salt to the commonly used electrolyte, LiPF₆. There is evidence of the enhanced stability of Li-ion battery electrodes in solutions of this salt, due to a unique surface chemistry developed in LiBOB solutions. The present study is aimed at further exploring the electrochemical and thermal properties of LiBOB solutions in mixtures of alkyl carbonates with non-active metal, graphite and lithium electrodes. FTIR spectroscopy, XPS, EQCM, in situ AFM imaging, and DSC were used in conjunction with standard electrochemical techniques. The study also included a comparison between LiBOB and LiPF₆ solutions. The development of a favorable surface chemistry in LiBOB solutions that provides better passivation to Li and Li-graphite electrodes was clearly evident.

Original language	English
Pages (from-to)	400-407
Number of pages	8
Journal	Journal of Power Sources
Volume	174
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2007.06.171
State	Published - 6 Dec 2007
Externally published	Yes

Keywords

AFM
EQCM
Graphite
LiBOB
Thermal analysis

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2007.06.171

Cite this

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title = "On the electrochemical and thermal behavior of lithium bis(oxalato)borate (LiBOB) solutions",

abstract = "In recent years, lithium bis(oxalato)borate, LiB(C2O4)2 (LiBOB) has been proposed as an alternative salt to the commonly used electrolyte, LiPF6. There is evidence of the enhanced stability of Li-ion battery electrodes in solutions of this salt, due to a unique surface chemistry developed in LiBOB solutions. The present study is aimed at further exploring the electrochemical and thermal properties of LiBOB solutions in mixtures of alkyl carbonates with non-active metal, graphite and lithium electrodes. FTIR spectroscopy, XPS, EQCM, in situ AFM imaging, and DSC were used in conjunction with standard electrochemical techniques. The study also included a comparison between LiBOB and LiPF6 solutions. The development of a favorable surface chemistry in LiBOB solutions that provides better passivation to Li and Li-graphite electrodes was clearly evident.",

keywords = "AFM, EQCM, Graphite, LiBOB, Thermal analysis",

author = "L. Larush-Asraf and M. Biton and H. Teller and E. Zinigrad and D. Aurbach",

year = "2007",

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doi = "10.1016/j.jpowsour.2007.06.171",

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journal = "Journal of Power Sources",

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T1 - On the electrochemical and thermal behavior of lithium bis(oxalato)borate (LiBOB) solutions

AU - Larush-Asraf, L.

AU - Biton, M.

AU - Teller, H.

AU - Zinigrad, E.

AU - Aurbach, D.

PY - 2007/12/6

Y1 - 2007/12/6

N2 - In recent years, lithium bis(oxalato)borate, LiB(C2O4)2 (LiBOB) has been proposed as an alternative salt to the commonly used electrolyte, LiPF6. There is evidence of the enhanced stability of Li-ion battery electrodes in solutions of this salt, due to a unique surface chemistry developed in LiBOB solutions. The present study is aimed at further exploring the electrochemical and thermal properties of LiBOB solutions in mixtures of alkyl carbonates with non-active metal, graphite and lithium electrodes. FTIR spectroscopy, XPS, EQCM, in situ AFM imaging, and DSC were used in conjunction with standard electrochemical techniques. The study also included a comparison between LiBOB and LiPF6 solutions. The development of a favorable surface chemistry in LiBOB solutions that provides better passivation to Li and Li-graphite electrodes was clearly evident.

AB - In recent years, lithium bis(oxalato)borate, LiB(C2O4)2 (LiBOB) has been proposed as an alternative salt to the commonly used electrolyte, LiPF6. There is evidence of the enhanced stability of Li-ion battery electrodes in solutions of this salt, due to a unique surface chemistry developed in LiBOB solutions. The present study is aimed at further exploring the electrochemical and thermal properties of LiBOB solutions in mixtures of alkyl carbonates with non-active metal, graphite and lithium electrodes. FTIR spectroscopy, XPS, EQCM, in situ AFM imaging, and DSC were used in conjunction with standard electrochemical techniques. The study also included a comparison between LiBOB and LiPF6 solutions. The development of a favorable surface chemistry in LiBOB solutions that provides better passivation to Li and Li-graphite electrodes was clearly evident.

KW - AFM

KW - EQCM

KW - Graphite

KW - LiBOB

KW - Thermal analysis

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DO - 10.1016/j.jpowsour.2007.06.171

M3 - Article

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JO - Journal of Power Sources

JF - Journal of Power Sources

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ER -

On the electrochemical and thermal behavior of lithium bis(oxalato)borate (LiBOB) solutions

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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