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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 1974 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 1961 | - |
dc.citation.title | ENERGY & ENVIRONMENTAL SCIENCE | - |
dc.citation.volume | 17 | - |
dc.contributor.author | Kim, Hong-, I | - |
dc.contributor.author | Lee, Kyung Min | - |
dc.contributor.author | Kim, Won-Yeong | - |
dc.contributor.author | Kweon, Seong Hyeon | - |
dc.contributor.author | Wang, Xiao | - |
dc.contributor.author | Zheng, Shuanghao | - |
dc.contributor.author | Kim, Seung-Hyeok | - |
dc.contributor.author | Ha, Jee Ho | - |
dc.contributor.author | Kang, Seok Ju | - |
dc.contributor.author | Wu, Zhong-Shuai | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Lee, Sang-Young | - |
dc.date.accessioned | 2024-03-04T14:05:13Z | - |
dc.date.available | 2024-03-04T14:05:13Z | - |
dc.date.created | 2024-02-27 | - |
dc.date.issued | 2024-03 | - |
dc.description.abstract | Despite the growing interest in aqueous Zn batteries as a safe and low-cost alternative to commercial Li-ion batteries, the use of aqueous electrolytes has limited their application at sub-zero temperatures. Here, we propose a new electrolyte design using zwitterions based on the hard and soft acids and bases principle to restructure aqueous electrolytes. Incorporation of a soft-acidic/hard-basic zwitterion into an aqueous electrolyte results in the disruption of the hydrogen bonds of water molecules, weakening of Zn2+-OTf- interactions, and destabilization of the Zn2+ solvation sheath. The resulting electrolyte (ZT-electrolyte) enhances the anti-freezing phenomena with a solid-liquid transition temperature of -95 degrees C and Zn2+ desolvation kinetics. Consequently, the anode-free full cell (Cu||Znxa-V2O5@graphene) with the ZT-electrolyte exhibits high energy and power densities (142 W h kg-1 at 50 mA g-1 and 230 W kg-1 at 2 A g-1) with stable cyclability at -40 degrees C, which exceeded those of previously reported Zn batteries and are comparable to those of low-temperature Li-metal batteries. Restructuring of aqueous electrolytes using a soft-acidic/hard-basic zwitterion enabled low-temperature anode-free Zn batteries, with a focus on enhancing anti-freezing phenomena and Zn2+ desolvation kinetics at electrolyte-electrode interfaces. | - |
dc.identifier.bibliographicCitation | ENERGY & ENVIRONMENTAL SCIENCE, v.17, no.5, pp.1961 - 1974 | - |
dc.identifier.doi | 10.1039/d3ee02535g | - |
dc.identifier.issn | 1754-5692 | - |
dc.identifier.scopusid | 2-s2.0-85184607556 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81516 | - |
dc.identifier.wosid | 001157808000001 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Restructuring of aqueous electrolytes using a soft-acidic/hard-basic zwitterion for low-temperature anode-free Zn batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | BETAINE | - |
dc.subject.keywordPlus | ENERGY | - |
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