A study of electrochemical reduction of ethylene and propylene carbonate electrolytes on graphite using ATR-FTIR spectroscopy

Guorong V. Zhuang; Hui Yang; Berislav Blizanac; Philip N. Ross

doi:10.1149/1.1979327

A study of electrochemical reduction of ethylene and propylene carbonate electrolytes on graphite using ATR-FTIR spectroscopy

Guorong V. Zhuang, Hui Yang, Berislav Blizanac, Philip N. Ross

Lawrence Berkeley National Laboratory

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

115 Scopus citations

Abstract

We present results from testing the hypothesis that there is a different reaction pathway for the electrochemical reduction of PC EC-based electrolytes at graphite electrodes with LiPF6 as the salt in common. We examined the reduction products formed using ex situ Fourier transform infrared (FTIR) spectroscopy in attenuated total reflection (ATR) geometry. The results show the pathway for reduction of PC leads nearly entirely to lithium carbonate as the solid product (and presumably propylene gas as the co-product) while EC follows a path producing a mixture of organic and inorganic compounds. Possible explanations for the difference in reaction pathway are discussed.

Original language	English
Pages (from-to)	A441-A445
Journal	Electrochemical and Solid-State Letters
Volume	8
Issue number	9
DOIs	https://doi.org/10.1149/1.1979327
State	Published - 2005
Externally published	Yes

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abstract = "We present results from testing the hypothesis that there is a different reaction pathway for the electrochemical reduction of PC EC-based electrolytes at graphite electrodes with LiPF6 as the salt in common. We examined the reduction products formed using ex situ Fourier transform infrared (FTIR) spectroscopy in attenuated total reflection (ATR) geometry. The results show the pathway for reduction of PC leads nearly entirely to lithium carbonate as the solid product (and presumably propylene gas as the co-product) while EC follows a path producing a mixture of organic and inorganic compounds. Possible explanations for the difference in reaction pathway are discussed.",

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AU - Ross, Philip N.

PY - 2005

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AB - We present results from testing the hypothesis that there is a different reaction pathway for the electrochemical reduction of PC EC-based electrolytes at graphite electrodes with LiPF6 as the salt in common. We examined the reduction products formed using ex situ Fourier transform infrared (FTIR) spectroscopy in attenuated total reflection (ATR) geometry. The results show the pathway for reduction of PC leads nearly entirely to lithium carbonate as the solid product (and presumably propylene gas as the co-product) while EC follows a path producing a mixture of organic and inorganic compounds. Possible explanations for the difference in reaction pathway are discussed.

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A study of electrochemical reduction of ethylene and propylene carbonate electrolytes on graphite using ATR-FTIR spectroscopy

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