Ionic semi-interpenetrating networks as a new approach for highly conductive and stretchable polymer materials
| Autor: | Frédéric Vidal, Christine Surcin, Elena I. Lozinskaya, Pierre-Henri Aubert, Mathieu Morcrette, Yakov S. Vygodskii, Denis O. Ponkratov, Lyudmila V. Gumileva, Alexander S. Shaplov, Petr S. Vlasov, Michel Armand |
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| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Conductive polymer Materials science Renewable Energy Sustainability and the Environment chemistry.chemical_element Ionic bonding General Chemistry Polymer chemistry.chemical_compound Monomer chemistry Ionic liquid Polymer chemistry Copolymer Ionic conductivity General Materials Science Lithium |
| Zdroj: | Journal of Materials Chemistry A. 3:2188-2198 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c4ta05833j |
| Popis: | The synthesis and characterization of ionically conductive polymer films with high stretchability and good elasticity based on ionic semi-interpenetrating polymer networks (semi-IPNs) are discussed. Such innovative semi-IPN materials were prepared by radical copolymerization of an ionic monomer, namely, (N-[2-(2-(2-(methacryloyloxy)ethoxy)ethoxy)ethyl]-N-methylpyrrolidinium bis(fluorosulfonyl)imide) with poly(ethylene glycol)(di)methacrylates in the presence of the dissolved nitrile butadiene rubber, ionic liquid and lithium salt, using a simple one-step process. The suggested approach allows for simultaneous imparting of high ionic conductivity (1.3 × 10−4 S cm−1 at 25 °C) and excellent mechanical properties (tensile strength up to 80 kPa, elongation up to 60%) to a single polymer material. Ionic semi-IPNs, possessing unusual “Emmentaler cheese” like structure, exhibit a wide electrochemical stability window (4.9 V) and acceptable time-stable interfacial properties in contact with metallic lithium. Preliminary battery tests have shown that Li/LiFePO4 solid-state cells are capable to deliver a 77 mA h g−1 average specific capacity at 40 °C during 75 charge/discharge cycles. |
| Databáze: | OpenAIRE |
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