Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes
Sulfur-based cathode chemistries are essential for the development of high energy density alkali-ion batteries. Here, we elucidate the redox kinetics of sulfur confined on carbon nanotubes, comparing its performance in ether-based and carbonate-based electrolytes at room temperature. The solvent is...
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MDPI AG
2020-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/4/836 |
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| author | Huang Zhang Thomas Diemant Bingsheng Qin Huihua Li R. Jürgen Behm Stefano Passerini |
| author_facet | Huang Zhang Thomas Diemant Bingsheng Qin Huihua Li R. Jürgen Behm Stefano Passerini |
| author_sort | Huang Zhang |
| collection | DOAJ |
| description | Sulfur-based cathode chemistries are essential for the development of high energy density alkali-ion batteries. Here, we elucidate the redox kinetics of sulfur confined on carbon nanotubes, comparing its performance in ether-based and carbonate-based electrolytes at room temperature. The solvent is found to play a key role for the electrochemical reactivity of the sulfur cathode in sodium−sulfur (Na−S) batteries. Ether-based electrolytes contribute to a more complete reduction of sulfur and enable a higher electrochemical reversibility. On the other hand, an irreversible solution-phase reaction is observed in carbonate solvents. This study clearly reveals the solvent-dependent Na−S reaction pathways in room temperature Na−S batteries and provides an insight into realizing their high energy potential, via electrolyte formulation design. |
| first_indexed | 2024-04-14T03:27:33Z |
| format | Article |
| id | doaj.art-a3f5f9b02da245ccb917588bb1a22083 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T03:27:33Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a3f5f9b02da245ccb917588bb1a220832022-12-22T02:15:06ZengMDPI AGEnergies1996-10732020-02-0113483610.3390/en13040836en13040836Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether ElectrolytesHuang Zhang0Thomas Diemant1Bingsheng Qin2Huihua Li3R. Jürgen Behm4Stefano Passerini5Xi’an Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, Shaanxi, ChinaInstitute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, GermanyHelmholtz Institute Ulm, Helmholtzstraße 11, 89081 Ulm, GermanyHelmholtz Institute Ulm, Helmholtzstraße 11, 89081 Ulm, GermanyHelmholtz Institute Ulm, Helmholtzstraße 11, 89081 Ulm, GermanyHelmholtz Institute Ulm, Helmholtzstraße 11, 89081 Ulm, GermanySulfur-based cathode chemistries are essential for the development of high energy density alkali-ion batteries. Here, we elucidate the redox kinetics of sulfur confined on carbon nanotubes, comparing its performance in ether-based and carbonate-based electrolytes at room temperature. The solvent is found to play a key role for the electrochemical reactivity of the sulfur cathode in sodium−sulfur (Na−S) batteries. Ether-based electrolytes contribute to a more complete reduction of sulfur and enable a higher electrochemical reversibility. On the other hand, an irreversible solution-phase reaction is observed in carbonate solvents. This study clearly reveals the solvent-dependent Na−S reaction pathways in room temperature Na−S batteries and provides an insight into realizing their high energy potential, via electrolyte formulation design.https://www.mdpi.com/1996-1073/13/4/836sodium-sulfurredox kineticscarbonateetherelectrolyte |
| spellingShingle | Huang Zhang Thomas Diemant Bingsheng Qin Huihua Li R. Jürgen Behm Stefano Passerini Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes Energies sodium-sulfur redox kinetics carbonate ether electrolyte |
| title | Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes |
| title_full | Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes |
| title_fullStr | Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes |
| title_full_unstemmed | Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes |
| title_short | Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes |
| title_sort | solvent dictated sodium sulfur redox reactions investigation of carbonate and ether electrolytes |
| topic | sodium-sulfur redox kinetics carbonate ether electrolyte |
| url | https://www.mdpi.com/1996-1073/13/4/836 |
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