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Article

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

1
Helmholtz Institute Ulm-Karlsruhe Institute of Technology, Helmholtzstrasse 11, 89081 Ulm, Germany
2
Karlsruher Institute of Technology (KIT), P.O. Box 3640, 76021 Eggenstein-Leopoldshafen, Germany
3
ENEA, Agency for New Technologies, Energy and Sustainable Economic Development, DTE-PCU-SPCT, Via Anguillarese 301, 00123 Rome, Italy
4
ENEA, Agency for New Technologies, Energy and Sustainable Economic Development, SSPT-PROMAS-MATPRO, Via Anguillarese 301, 00123 Rome, Italy
*
Author to whom correspondence should be addressed.
Membranes 2018, 8(3), 41; https://doi.org/10.3390/membranes8030041
Received: 11 June 2018 / Revised: 4 July 2018 / Accepted: 9 July 2018 / Published: 10 July 2018
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. View Full-Text
Keywords: ionic liquids; N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide; poly(ethyleneoxide); polymer electrolytes; lithium polymer batteries ionic liquids; N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide; poly(ethyleneoxide); polymer electrolytes; lithium polymer batteries
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MDPI and ACS Style

Kim, G.-T.; Passerini, S.; Carewska, M.; Appetecchi, G.B. Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries. Membranes 2018, 8, 41. https://doi.org/10.3390/membranes8030041

AMA Style

Kim G-T, Passerini S, Carewska M, Appetecchi GB. Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries. Membranes. 2018; 8(3):41. https://doi.org/10.3390/membranes8030041

Chicago/Turabian Style

Kim, Guk-Tae; Passerini, Stefano; Carewska, Maria; Appetecchi, Giovanni B. 2018. "Ionic Liquid-Based Electrolyte Membranes for Medium-High Temperature Lithium Polymer Batteries" Membranes 8, no. 3: 41. https://doi.org/10.3390/membranes8030041

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