Next Article in Journal
Ag Nanotwin-Assisted Grain Growth-Induced by Stress in SiO2/Ag/SiO2 Nanocap Arrays
Previous Article in Journal
Applications of Nanomaterials Based on Magnetite and Mesoporous Silica on the Selective Detection of Zinc Ion in Live Cell Imaging
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle
Nanomaterials 2018, 8(6), 435;

Gelled Electrolyte Containing Phosphonium Ionic Liquids for Lithium-Ion Batteries

Université de Lyon, F-69003, Lyon, France, INSA Lyon, CNRS, UMR 5223, Ingénierie des Matériaux Polymères, F-69621 Villeurbanne, France
Université Grenoble Alpes, CEA-Grenoble, LITEN/DEHT/SCGE/LGI, 17, F-38000 Grenoble, France
Université Grenoble Alpes, CEA-Grenoble, INAC/SCIB/LRM, F-38000 Grenoble, France
Author to whom correspondence should be addressed.
Received: 16 May 2018 / Revised: 11 June 2018 / Accepted: 12 June 2018 / Published: 14 June 2018
Full-Text   |   PDF [4504 KB, uploaded 20 June 2018]   |  


In this work, new gelled electrolytes were prepared based on a mixture containing phosphonium ionic liquid (IL) composed of trihexyl(tetradecyl)phosphonium cation combined with bis(trifluoromethane)sulfonimide [TFSI] counter anions and lithium salt, confined in a host network made from an epoxy prepolymer and amine hardener. We have demonstrated that the addition of electrolyte plays a key role on the kinetics of polymerization but also on the final properties of epoxy networks, especially thermal, thermo-mechanical, transport, and electrochemical properties. Thus, polymer electrolytes with excellent thermal stability (>300 °C) combined with good thermo-mechanical properties have been prepared. In addition, an ionic conductivity of 0.13 Ms·cm−1 at 100 °C was reached. Its electrochemical stability was 3.95 V vs. Li0/Li+ and the assembled cell consisting in Li|LiFePO4 exhibited stable cycle properties even after 30 cycles. These results highlight a promising gelled electrolyte for future lithium ion batteries. View Full-Text
Keywords: ionic liquids; thermosets; Lithium salts; electrolytes ionic liquids; thermosets; Lithium salts; electrolytes

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Leclère, M.; Bernard, L.; Livi, S.; Bardet, M.; Guillermo, A.; Picard, L.; Duchet-Rumeau, J. Gelled Electrolyte Containing Phosphonium Ionic Liquids for Lithium-Ion Batteries. Nanomaterials 2018, 8, 435.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top