Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and Sulfolane
The development of post-lithium current sources, such as sodium-ion batteries with improved energy characteristics and an increased level of safety, is one of the key issues of modern energy. It requires the search and study of materials (including electrolytes) for these devices. Polyelectrolytes w...
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MDPI AG
2022-08-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/12/9/840 |
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| author | Anna A. Krupina Ruslan R. Kayumov Grigory V. Nechaev Alexander N. Lapshin Lyubov V. Shmygleva |
| author_facet | Anna A. Krupina Ruslan R. Kayumov Grigory V. Nechaev Alexander N. Lapshin Lyubov V. Shmygleva |
| author_sort | Anna A. Krupina |
| collection | DOAJ |
| description | The development of post-lithium current sources, such as sodium-ion batteries with improved energy characteristics and an increased level of safety, is one of the key issues of modern energy. It requires the search and study of materials (including electrolytes) for these devices. Polyelectrolytes with unipolar cationic conductivity based on Nafion<sup>®</sup> membranes are promising. In this work, the effect of swelling conditions of the Nafion<sup>®</sup> 115 membrane in Na<sup>+</sup>-form with mixtures of aprotic solvents such as ethylene carbonate and sulfolane on its physicochemical and electrotransport properties was studied. Nafion-Na<sup>+</sup> membranes were swollen in a mixture of solvents at temperatures of 40, 60, and 80 °C. The results were obtained using methods of impedance spectroscopy, simultaneous thermal analysis, and IR spectroscopy. The best conductivity was observed for a membrane swelling at 80 °C in a mixture with a mass fraction of ethylene carbonate of 0.5, which reaches 10<sup>−4</sup> S cm<sup>−1</sup> at 30 °C and retains rather high values down to −60 °C (10<sup>−6</sup> S cm<sup>−1</sup>). Thus, it is possible to expand the operating temperature range of a sodium battery by varying the composition of the polymer electrolyte and the conditions for its preparation. |
| first_indexed | 2024-03-09T23:13:02Z |
| format | Article |
| id | doaj.art-bea253cd1ca64033a9e44cbcb73a8059 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T23:13:02Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-bea253cd1ca64033a9e44cbcb73a80592023-11-23T17:42:15ZengMDPI AGMembranes2077-03752022-08-0112984010.3390/membranes12090840Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and SulfolaneAnna A. Krupina0Ruslan R. Kayumov1Grigory V. Nechaev2Alexander N. Lapshin3Lyubov V. Shmygleva4Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny 141701, Moscow Region, RussiaInstitute of Problems of Chemical Physics of Russian Academy of Sciences, 1 Academician Semenov Av., Chernogolovka 142432, Moscow Region, RussiaInstitute of Problems of Chemical Physics of Russian Academy of Sciences, 1 Academician Semenov Av., Chernogolovka 142432, Moscow Region, RussiaInstitute of Problems of Chemical Physics of Russian Academy of Sciences, 1 Academician Semenov Av., Chernogolovka 142432, Moscow Region, RussiaInstitute of Problems of Chemical Physics of Russian Academy of Sciences, 1 Academician Semenov Av., Chernogolovka 142432, Moscow Region, RussiaThe development of post-lithium current sources, such as sodium-ion batteries with improved energy characteristics and an increased level of safety, is one of the key issues of modern energy. It requires the search and study of materials (including electrolytes) for these devices. Polyelectrolytes with unipolar cationic conductivity based on Nafion<sup>®</sup> membranes are promising. In this work, the effect of swelling conditions of the Nafion<sup>®</sup> 115 membrane in Na<sup>+</sup>-form with mixtures of aprotic solvents such as ethylene carbonate and sulfolane on its physicochemical and electrotransport properties was studied. Nafion-Na<sup>+</sup> membranes were swollen in a mixture of solvents at temperatures of 40, 60, and 80 °C. The results were obtained using methods of impedance spectroscopy, simultaneous thermal analysis, and IR spectroscopy. The best conductivity was observed for a membrane swelling at 80 °C in a mixture with a mass fraction of ethylene carbonate of 0.5, which reaches 10<sup>−4</sup> S cm<sup>−1</sup> at 30 °C and retains rather high values down to −60 °C (10<sup>−6</sup> S cm<sup>−1</sup>). Thus, it is possible to expand the operating temperature range of a sodium battery by varying the composition of the polymer electrolyte and the conditions for its preparation.https://www.mdpi.com/2077-0375/12/9/840Nafionsodiumpolymer electrolytesulfolaneethylene carbonateaprotic solvent |
| spellingShingle | Anna A. Krupina Ruslan R. Kayumov Grigory V. Nechaev Alexander N. Lapshin Lyubov V. Shmygleva Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and Sulfolane Membranes Nafion sodium polymer electrolyte sulfolane ethylene carbonate aprotic solvent |
| title | Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and Sulfolane |
| title_full | Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and Sulfolane |
| title_fullStr | Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and Sulfolane |
| title_full_unstemmed | Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and Sulfolane |
| title_short | Polymer Electrolytes Based on Na-Nafion Plasticized by Binary Mixture of Ethylene Carbonate and Sulfolane |
| title_sort | polymer electrolytes based on na nafion plasticized by binary mixture of ethylene carbonate and sulfolane |
| topic | Nafion sodium polymer electrolyte sulfolane ethylene carbonate aprotic solvent |
| url | https://www.mdpi.com/2077-0375/12/9/840 |
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