Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries

Li+-conducting polyethylene oxide-based membranes incorporating N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide are used as electrolyte separators for all-solid-state lithium polymer batteries operating at medium-high temperatures. The incorporation of the ionic liquid remarkably im...

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Main Authors: Guk-Tae Kim, Stefano Passerini, Maria Carewska, Giovanni Battista Appetecchi
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:Membranes
Subjects:
Online Access:http://www.mdpi.com/2077-0375/8/3/41
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author Guk-Tae Kim
Stefano Passerini
Maria Carewska
Giovanni Battista Appetecchi
author_facet Guk-Tae Kim
Stefano Passerini
Maria Carewska
Giovanni Battista Appetecchi
author_sort Guk-Tae Kim
collection DOAJ
description Li+-conducting polyethylene oxide-based membranes incorporating N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide are used as electrolyte separators for all-solid-state lithium polymer batteries operating at medium-high temperatures. The incorporation of the ionic liquid remarkably improves the thermal, ion-transport and interfacial properties of the polymer electrolyte, which, in combination with the wide electrochemical stability even at medium-high temperatures, allows high current rates without any appreciable lithium anode degradation. Battery tests carried out at 80 °C have shown excellent cycling performance and capacity retention, even at high rates, which are never tackled by ionic liquid-free polymer electrolytes. No dendrite growth onto the lithium metal anode was observed.
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spelling doaj.art-fd36ba3387054aa8a227a66cdd65f2c72023-09-03T04:40:19ZengMDPI AGMembranes2077-03752018-07-01834110.3390/membranes8030041membranes8030041Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer BatteriesGuk-Tae Kim0Stefano Passerini1Maria Carewska2Giovanni Battista Appetecchi3Helmholtz Institute Ulm-Karlsruhe Institute of Technology, Helmholtzstrasse 11, 89081 Ulm, GermanyHelmholtz Institute Ulm-Karlsruhe Institute of Technology, Helmholtzstrasse 11, 89081 Ulm, GermanyENEA, Agency for New Technologies, Energy and Sustainable Economic Development, DTE-PCU-SPCT, Via Anguillarese 301, 00123 Rome, ItalyENEA, Agency for New Technologies, Energy and Sustainable Economic Development, SSPT-PROMAS-MATPRO, Via Anguillarese 301, 00123 Rome, ItalyLi+-conducting polyethylene oxide-based membranes incorporating N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide are used as electrolyte separators for all-solid-state lithium polymer batteries operating at medium-high temperatures. The incorporation of the ionic liquid remarkably improves the thermal, ion-transport and interfacial properties of the polymer electrolyte, which, in combination with the wide electrochemical stability even at medium-high temperatures, allows high current rates without any appreciable lithium anode degradation. Battery tests carried out at 80 °C have shown excellent cycling performance and capacity retention, even at high rates, which are never tackled by ionic liquid-free polymer electrolytes. No dendrite growth onto the lithium metal anode was observed.http://www.mdpi.com/2077-0375/8/3/41ionic liquidsN-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imidepoly(ethyleneoxide)polymer electrolyteslithium polymer batteries
spellingShingle Guk-Tae Kim
Stefano Passerini
Maria Carewska
Giovanni Battista Appetecchi
Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries
Membranes
ionic liquids
N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide
poly(ethyleneoxide)
polymer electrolytes
lithium polymer batteries
title Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries
title_full Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries
title_fullStr Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries
title_full_unstemmed Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries
title_short Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries
title_sort ionic liquid based electrolyte membranes for medium high temperature lithium polymer batteries
topic ionic liquids
N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide
poly(ethyleneoxide)
polymer electrolytes
lithium polymer batteries
url http://www.mdpi.com/2077-0375/8/3/41
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AT stefanopasserini ionicliquidbasedelectrolytemembranesformediumhightemperaturelithiumpolymerbatteries
AT mariacarewska ionicliquidbasedelectrolytemembranesformediumhightemperaturelithiumpolymerbatteries
AT giovannibattistaappetecchi ionicliquidbasedelectrolytemembranesformediumhightemperaturelithiumpolymerbatteries