In Situ FTIR Spectroscopy Study of Li/LiNi0. 8Co0. 15Al0. 05O2 Cells with Ionic Liquid-Based Electrolytes in Overcharge Condition

R Sharabi; E Markevich; V Borgel; G Salitra; D Aurbach; G Semrau; M. A Schmidt

In Situ FTIR Spectroscopy Study of Li/LiNi0. 8Co0. 15Al0. 05O2 Cells with Ionic Liquid-Based Electrolytes in Overcharge Condition

R Sharabi, E Markevich, V Borgel, G Salitra, D Aurbach, G Semrau, M. A Schmidt

Department of Chemistry

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

Abstract

We developed a methodology of in situ Fourier transform infrared (FTIR) measurements of gaseous products formed in an electrochemical cell upon polarization. Formula (NCA) cathodes were explored at potentials of up to 5.5 V vs Li in the ionic liquid (IL)-based electrolyte solution, LiTFSI/Formula -butyl-Formula -methylpyrrolidinium bis(trifluoromethanesulfonyl)amide. The polarization of the NCA electrodes formed Formula and CO due to the liberation of oxygen and the parallel dissolution of nickel ions, which oxidizes the carbon black in the composite electrode. The oxygen was mostly liberated from the NCA and also due to minor contribution from the surface groups on the carbon black additive.

Original language	American English
Pages (from-to)	32-35
Journal	Electrochemical and Solid-State Letters
Volume	13
Issue number	4
State	Published - 2010

Cite this

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title = "In Situ FTIR Spectroscopy Study of Li/LiNi0. 8Co0. 15Al0. 05O2 Cells with Ionic Liquid-Based Electrolytes in Overcharge Condition",

abstract = "We developed a methodology of in situ Fourier transform infrared (FTIR) measurements of gaseous products formed in an electrochemical cell upon polarization. Formula (NCA) cathodes were explored at potentials of up to 5.5 V vs Li in the ionic liquid (IL)-based electrolyte solution, LiTFSI/Formula -butyl-Formula -methylpyrrolidinium bis(trifluoromethanesulfonyl)amide. The polarization of the NCA electrodes formed Formula and CO due to the liberation of oxygen and the parallel dissolution of nickel ions, which oxidizes the carbon black in the composite electrode. The oxygen was mostly liberated from the NCA and also due to minor contribution from the surface groups on the carbon black additive.",

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T1 - In Situ FTIR Spectroscopy Study of Li/LiNi0. 8Co0. 15Al0. 05O2 Cells with Ionic Liquid-Based Electrolytes in Overcharge Condition

AU - Sharabi, R

AU - Markevich, E

AU - Borgel, V

AU - Salitra, G

AU - Aurbach, D

AU - Semrau, G

AU - Schmidt, M. A

PY - 2010

Y1 - 2010

N2 - We developed a methodology of in situ Fourier transform infrared (FTIR) measurements of gaseous products formed in an electrochemical cell upon polarization. Formula (NCA) cathodes were explored at potentials of up to 5.5 V vs Li in the ionic liquid (IL)-based electrolyte solution, LiTFSI/Formula -butyl-Formula -methylpyrrolidinium bis(trifluoromethanesulfonyl)amide. The polarization of the NCA electrodes formed Formula and CO due to the liberation of oxygen and the parallel dissolution of nickel ions, which oxidizes the carbon black in the composite electrode. The oxygen was mostly liberated from the NCA and also due to minor contribution from the surface groups on the carbon black additive.

AB - We developed a methodology of in situ Fourier transform infrared (FTIR) measurements of gaseous products formed in an electrochemical cell upon polarization. Formula (NCA) cathodes were explored at potentials of up to 5.5 V vs Li in the ionic liquid (IL)-based electrolyte solution, LiTFSI/Formula -butyl-Formula -methylpyrrolidinium bis(trifluoromethanesulfonyl)amide. The polarization of the NCA electrodes formed Formula and CO due to the liberation of oxygen and the parallel dissolution of nickel ions, which oxidizes the carbon black in the composite electrode. The oxygen was mostly liberated from the NCA and also due to minor contribution from the surface groups on the carbon black additive.

UR - https://scholar.google.co.il/scholar?q=The+study+of+Li+%2F+LiNi0.8Co0.15Al0.05O2+%28NCA%29+cells+with+ionic+liquid+based+electrolyte+solutions+in+over-charge+condition+by+in-situ+FTIR+spectroscopy%2C+Sharabi%2C+R.%3B++Markevich%2C+E.%3B+Burgel%2C+V.%3B+Se

M3 - Article

VL - 13

SP - 32

EP - 35

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 4

ER -

In Situ FTIR Spectroscopy Study of Li/LiNi0. 8Co0. 15Al0. 05O2 Cells with Ionic Liquid-Based Electrolytes in Overcharge Condition

Abstract

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