DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jiyoung | ko |
dc.contributor.author | Lim, Haeseong | ko |
dc.contributor.author | Park, Junkil | ko |
dc.contributor.author | Kim, Min-Soo | ko |
dc.contributor.author | Jung, Ji-Won | ko |
dc.contributor.author | Kim, Jihan | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.date.accessioned | 2023-07-28T01:01:27Z | - |
dc.date.available | 2023-07-28T01:01:27Z | - |
dc.date.created | 2023-05-30 | - |
dc.date.created | 2023-05-30 | - |
dc.date.issued | 2023-07 | - |
dc.identifier.citation | ADVANCED ENERGY MATERIALS, v.13, no.26 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | http://hdl.handle.net/10203/310913 | - |
dc.description.abstract | Covalent organic frameworks (COFs), featuring ordered nanopores with numerous accessible redox sites, have drawn much attention as promising electrode materials for rechargeable batteries. Thus far, however, COF-based battery electrodes have exhibited limited capacity and unsatisfactory cycling stability due to the unwanted side reactions over their large surface area. Herein, a fluorine-rich covalent organic framework (F-COF) as an electrode material with improved stability and performance for potassium-ion batteries is developed. The fluorinated COF not only stabilizes intercalation kinetics of K+ ions but also reinforces its electron affinity and conductivity, improving the reversibility of bond transitions during discharge-charge cycles. As a result, F-COF affords a high specific capacity (95 mAh g(-1) at fast rates up to 5 C) and excellent cycling stability (5000 cycles with approximate to 99.7% capacity retention), outperforming the pristine COF-based electrodes devoid of F atoms. Notably, the experimental capacity of F-COF approaches its theoretical value, confirming that a large proportion of electroactive sites are being actively utilized. Altogether, this work addresses the significant role of F atoms in improving the K+-ion storage capability of COFs and provides the rational design principles for the continued development of stable and high-performance organic electrode materials for energy storage devices. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Fluorine-Rich Covalent Organic Framework to Boost Electrochemical Kinetics and Storages of K+ Ions for Potassium-Ion Battery | - |
dc.type | Article | - |
dc.identifier.wosid | 000989561800001 | - |
dc.identifier.scopusid | 2-s2.0-85159574259 | - |
dc.type.rims | ART | - |
dc.citation.volume | 13 | - |
dc.citation.issue | 26 | - |
dc.citation.publicationname | ADVANCED ENERGY MATERIALS | - |
dc.identifier.doi | 10.1002/aenm.202300442 | - |
dc.contributor.localauthor | Kim, Jihan | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Lee, Jiyoung | - |
dc.contributor.nonIdAuthor | Jung, Ji-Won | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Covalent organic frameworks | - |
dc.subject.keywordAuthor | Fluorine atoms | - |
dc.subject.keywordAuthor | High storage capacity | - |
dc.subject.keywordAuthor | Interface stabilization | - |
dc.subject.keywordAuthor | Long-term stability | - |
dc.subject.keywordAuthor | Potassium-ion battery (KIBs) | - |
dc.subject.keywordPlus | SOLID-ELECTROLYTE-INTERPHASE | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | ANODES | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | OXIDE | - |
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