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Investigation of N-Ethyl-2-Pyrrolidone (NEP) as Electrolyte Additive in Regard to Overcharge Protecting Characteristics.

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Title: Investigation of N-Ethyl-2-Pyrrolidone (NEP) as Electrolyte Additive in Regard to Overcharge Protecting Characteristics.
Authors: Vogl, Ulrike1 ulrike.vogl@uni-muenster.de, Schmitz, Andre1, Stock, Christoph1, Badillo, Juan Pablo1, Gores, Heiner Jakob1, Winter, Martin1 martin.winter@uni-muenster.de
Source: Journal of The Electrochemical Society. 2014, Vol. 161 Issue 9, pA1407-A1414. 8p.
Subjects: Battery additives, Pyrrolidinones, Chemical stability, Electrochemistry
Abstract: We report on overcharge protection characteristics of N-ethyl-2-pyrrolidone (NEP) as electrolyte additive. The electrochemical stability of this organic compound was investigated on a platinum working electrode using linear sweep voltammetry. We investigated the overcharge protection effect on a lithium iron phosphate (LFP), a lithium nickel manganese cobalt oxide (NMC) and on a LiMn2O4 (LMO) cathode. Via electrochemical quartz crystal microbalance (EQCMB) measurements the effects of NEP during overcharge were studied and revealed that NEP acts not like a redox shuttle, but is forming a protecting polymeric film. The oxidation products on the cathode were studied by analyzing the surface of the lithium iron phosphate (LFP) and LiMn2O4 (LMO) cathode using XPS spectroscopy. [ABSTRACT FROM AUTHOR]
Copyright of Journal of The Electrochemical Society is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 97451567
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Investigation of N-Ethyl-2-Pyrrolidone (NEP) as Electrolyte Additive in Regard to Overcharge Protecting Characteristics.
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  Data: <searchLink fieldCode="AR" term="%22Vogl%2C+Ulrike%22">Vogl, Ulrike</searchLink><relatesTo>1</relatesTo><i> ulrike.vogl@uni-muenster.de</i><br /><searchLink fieldCode="AR" term="%22Schmitz%2C+Andre%22">Schmitz, Andre</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Stock%2C+Christoph%22">Stock, Christoph</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Badillo%2C+Juan+Pablo%22">Badillo, Juan Pablo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gores%2C+Heiner+Jakob%22">Gores, Heiner Jakob</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Winter%2C+Martin%22">Winter, Martin</searchLink><relatesTo>1</relatesTo><i> martin.winter@uni-muenster.de</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+The+Electrochemical+Society%22">Journal of The Electrochemical Society</searchLink>. 2014, Vol. 161 Issue 9, pA1407-A1414. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Battery+additives%22">Battery additives</searchLink><br /><searchLink fieldCode="DE" term="%22Pyrrolidinones%22">Pyrrolidinones</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+stability%22">Chemical stability</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemistry%22">Electrochemistry</searchLink>
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  Label: Abstract
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  Data: We report on overcharge protection characteristics of N-ethyl-2-pyrrolidone (NEP) as electrolyte additive. The electrochemical stability of this organic compound was investigated on a platinum working electrode using linear sweep voltammetry. We investigated the overcharge protection effect on a lithium iron phosphate (LFP), a lithium nickel manganese cobalt oxide (NMC) and on a LiMn2O4 (LMO) cathode. Via electrochemical quartz crystal microbalance (EQCMB) measurements the effects of NEP during overcharge were studied and revealed that NEP acts not like a redox shuttle, but is forming a protecting polymeric film. The oxidation products on the cathode were studied by analyzing the surface of the lithium iron phosphate (LFP) and LiMn2O4 (LMO) cathode using XPS spectroscopy. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of The Electrochemical Society is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1149/2.1021409jes
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      – Code: eng
        Text: English
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        Type: general
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      – SubjectFull: Chemical stability
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      – TitleFull: Investigation of N-Ethyl-2-Pyrrolidone (NEP) as Electrolyte Additive in Regard to Overcharge Protecting Characteristics.
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              Text: 2014
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