PEO: An immobile solvent?
| Autor: | Yannick Molmeret, J.-Y. Sanchez, Cynthia S. Martínez-Cisneros, Cristina Iojoiu, Amadou Thiam |
|---|---|
| Přispěvatelé: | Ministerio de Economía y Competitividad (España), European Commission, Matériaux Interfaces ELectrochimie (MIEL ), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Universidad Carlos III de Madrid [Madrid] (UC3M) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
General Chemical Engineering Polymer electrolyte Ionic bonding macromolecular substances 02 engineering and technology Electrolyte Conductivity 010402 general chemistry 01 natural sciences 7. Clean energy chemistry.chemical_compound Crystallinity Ionic transport Electrochemistry [CHIM]Chemical Sciences POE Immobile solvent ComputingMilieux_MISCELLANEOUS Purification Materiales technology industry and agriculture Cationic polymerization Dynamic mechanical analysis 021001 nanoscience & nanotechnology 0104 chemical sciences Solvent chemistry Chemical engineering PEO Ionic liquid 0210 nano-technology |
| Zdroj: | Electrochimica Acta Electrochimica Acta, Elsevier, 2019, 302, pp.338-343. ⟨10.1016/j.electacta.2019.02.005⟩ e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid instname e-Archivo: Repositorio Institucional de la Universidad Carlos III de Madrid Universidad Carlos III de Madrid (UC3M) |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2019.02.005⟩ |
| Popis: | Despite used for half a century as host for salt-polymer complexes, PEO is still not a fossil and due to its availability, remains regularly used as a reference in solvent-free polymer electrolytes and related electrochemical cells. Often qualified as macromolecular solvent or immobile solvent, its drawbacks (crystallinity, mechanical strength) are well identified. On the other hand, its electrolyte conductivity maxima are considered as the best possible in absence of molecular solvents or ionic liquids. The comparison of PEO/LiTFSI based on raw PEO and ultrafiltrated one, shows unambiguously the impact of unentangled oligomers not only on ionic transport but also on mechanical behavior. Conductivity, cationic transference numbers and storage modulus data go in the same direction and the cationic conductivity (O/Li = 30) is divided by 2, following PEO purification. Jean-Yves Sanchez acknowledges the CONEX Programme, funding received from Universidad Carlos III de Madrid, the European Union's Seventh Framework Programme for research, technological development and demonstration (Grant agreement nº 600371), Spanish Ministry of Economy and Competitiveness (COFUND2013-40258) and Banco Santander. Amadou Thiam acknowledges ANR for his fellowship. Yannick Molméret acknowledges KICINNO Energy for the granting of his post-doc fellowship, in the frame of the project PENLiB coordinated by Prof. Jean-Yves Sanchez. |
| Databáze: | OpenAIRE |
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