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EnglishIn this work we propose glycidol, a high-value product isolated from epichlorohydrin industry waste, as a starting material for the preparation of two poly(glycidol)s polymer matrices with a chemical structure mimicking that of poly(ethylene oxide), i.e. the most used polymer matrix for non-liquid battery electrolytes. The materials are characterized from the physico-chemical viewpoint, showing high thermal stability. They are then obtained in the form of ionic conducting polymer electrolytes encompassing different sodium salts and solvent mixtures. Ionic conductivity values exceeding 10–5 S cm–1 are measured in the “dry” truly solid state at 80 °C, while it approaches 6×10–5 S cm–1 at ambient temperature in the “wet” quasi-solid state. In addition, poly(glycidol)-based polymer matrices show reasonably wide electrochemical stability towards anodic oxidation. It envisages their possible use as separating electrolytes in secondary batteries, which is also demonstrated by preliminary charge/discharge cycling tests in labscale sodium cells.1 The present findings pave the way to a circular economy platform starting from industry wastes and ending with post-lithium storage systems.
Bio-based poly(glycidylether)s as electrolytes for sodium batteries / Cucciniello, R.; Piana, G.; Ricciardi, M.; Proto, A.; Bella, F.. - ELETTRONICO. - (2020), pp. 22-22. ((Intervento presentato al convegno 8° Workshop Nazionale del Gruppo Interdivisionale di Green Chemistry – Chimica Sostenibile tenutosi a Virtual meeting nel 29/09/2020.
| Titolo: | Bio-based poly(glycidylether)s as electrolytes for sodium batteries | |
| Autori: | ||
| Data di pubblicazione: | 2020 | |
| Abstract: | In this work we propose glycidol, a high-value product isolated from epichlorohydrin industry waste, as a starting material for the preparation of two poly(glycidol)s polymer matrices with a chemical structure mimicking that of poly(ethylene oxide), i.e. the most used polymer matrix for non-liquid battery electrolytes. The materials are characterized from the physico-chemical viewpoint, showing high thermal stability. They are then obtained in the form of ionic conducting polymer electrolytes encompassing different sodium salts and solvent mixtures. Ionic conductivity values exceeding 10–5 S cm–1 are measured in the “dry” truly solid state at 80 °C, while it approaches 6×10–5 S cm–1 at ambient temperature in the “wet” quasi-solid state. In addition, poly(glycidol)-based polymer matrices show reasonably wide electrochemical stability towards anodic oxidation. It envisages their possible use as separating electrolytes in secondary batteries, which is also demonstrated by preliminary charge/discharge cycling tests in labscale sodium cells.1 The present findings pave the way to a circular economy platform starting from industry wastes and ending with post-lithium storage systems. | |
| Appare nelle tipologie: | 4.3 Poster |
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