Full metadata record
DC Field | Value | Language |
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dc.citation.startPage | 128416 | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 411 | - |
dc.contributor.author | Senthilkumar, S. T. | - |
dc.contributor.author | Park, Jeong-Sun | - |
dc.contributor.author | Marcilla, Rebeca | - |
dc.contributor.author | Palma, Jesus | - |
dc.contributor.author | Kim, Youngsik | - |
dc.date.accessioned | 2023-12-21T15:51:39Z | - |
dc.date.available | 2023-12-21T15:51:39Z | - |
dc.date.created | 2021-04-14 | - |
dc.date.issued | 2021-05 | - |
dc.description.abstract | Aqueous hybrid Zn2+/Na+ ion batteries (AHZSIBs) have gained considerable attention for stationary energy storage applications because of their outstanding safety, sustainability, abundance, and low raw material costs. However, the low capacity values (<100 mAh/g) of the Na+ ion deinsertion/insertion cathodes limit the overall capacity storage of AHZSIBs. Herein, we propose a novel concept to extend the charge storage performance of AHZSIBs using electrolyte with redox characteristics. The benefits of using redox aqueous electrolytes such as 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPOL) and sodium ferrocyanide (Na-4[Fe(CN)(6)]) were investigated in an AHZSB, which consists of Zn metal as an anode and sodium nickel hexacyanoferrate (Na-NiHCF) as the Na+ deinsertion/insertion cathode. The proposed AHZSB using Na4[Fe(CN)6] redox electrolyte provided a capacity (144 mAh/g) that was similar to 2.94 times higher than AHZSIB using a conventional Na2SO4 electrolyte (49 mAh/g). This capacity enhancement emanated from the faradaic contribution of the Fe2+(CN)(6)(4-)/Fe3+(CN)(6)(3-) redox pair present in the electrolyte and Fe2+/Fe3+ redox pair in the lattice of Na-NiHCF. In addition, the TEMPOL-based redox electrolyte also improved the capacity (from 49 to 120 mAh/g) through the combined faradaic contribution of the TEMPOL/TEMPOL+ redox pair dissolved in the electrolyte and the Fe2+/Fe3+ redox pair in the Na-NiHCF lattice. These results confirm the competence of the redox electrolyte in AHZSIB in enhancing the charge storage capacity. We anticipate that this proof-of-concept study will provide a new direction for developing high-capacity storage AHZSIBs. More importantly, this approach can be used in any aqueous/non-aqueous batteries. | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.411, pp.128416 | - |
dc.identifier.doi | 10.1016/j.cej.2021.128416 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.scopusid | 2-s2.0-85100198579 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/52728 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S1385894721000152?via%3Dihub | - |
dc.identifier.wosid | 000624507200001 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Using redox electrolytes to extend the charge storage capacity in an aqueous hybrid ion battery | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental; Engineering, Chemical | - |
dc.relation.journalResearchArea | Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Hybrid ion battery | - |
dc.subject.keywordAuthor | Redox electrolyte | - |
dc.subject.keywordAuthor | Nickelhexacyanoferrate | - |
dc.subject.keywordAuthor | Sodium ferrocyanide | - |
dc.subject.keywordAuthor | 4-Hydroxy-2 2,6,6-Tetramethylpiperidine-1-oxyl | - |
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