DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Jung Hyo | ko |
dc.contributor.author | Choi, Kyung Min | ko |
dc.contributor.author | Lee, Dong Ki | ko |
dc.contributor.author | Moon, Byeong Cheul | ko |
dc.contributor.author | Shin, Sang Rim | ko |
dc.contributor.author | Song, Min-Kyu | ko |
dc.contributor.author | Kang, Jeung Ku | ko |
dc.date.accessioned | 2016-07-05T08:17:51Z | - |
dc.date.available | 2016-07-05T08:17:51Z | - |
dc.date.created | 2016-05-31 | - |
dc.date.created | 2016-05-31 | - |
dc.date.issued | 2016-05 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v.6 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/10203/209307 | - |
dc.description.abstract | Lithium polysulphides generated during discharge in the cathode of a lithium-sulphur redox cell are important, but their dissolution into the electrolyte from the cathode during each redox cycle leads to a shortened cycle life. Herein, we use in situ spectroelectrochemical measurements to demonstrate that sp(2) nitrogen atoms in the organic linkers of nanocrystalline metal-organic framework-867 (nMOF-867) are able to encapsulate lithium polysulphides inside the microcages of nMOF-867, thus helping to prevent their dissolution into the electrolyte during discharge/charge cycles. This encapsulation mechanism of lithiated/delithiated polysulphides was further confirmed by observations of shifted FTIR spectra for the C = N and C-N bonds, the XPS spectra for the Li-N bonds from nMOF-867, and a visualization method, demonstrating that nMOF-867 prevents lithium polysulphides from being dissolved in the electrolyte. Indeed, a cathode fabricated using nMOF-867 exhibited excellent capacity retention over a long cycle life of 500 discharge/charge cycles, with a capacity loss of approximately 0.027% per cycle from a discharge capacity of 788 mAh/g at a high current rate of 835 mA/g | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | LITHIUM-SULFUR BATTERIES | - |
dc.subject | LI-S BATTERIES | - |
dc.subject | FACILE SYNTHESIS | - |
dc.subject | RECENT PROGRESS | - |
dc.subject | LONG-LIFE | - |
dc.subject | CATHODE | - |
dc.subject | CARBON | - |
dc.subject | PERFORMANCE | - |
dc.subject | PROSPECTS | - |
dc.subject | STORAGE | - |
dc.title | Encapsulation of redox polysulphides via chemical interaction with nitrogen atoms in the organic linkers of metal-organic framework nanocrystals | - |
dc.type | Article | - |
dc.identifier.wosid | 000375547700001 | - |
dc.identifier.scopusid | 2-s2.0-84966706337 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.publicationname | SCIENTIFIC REPORTS | - |
dc.identifier.doi | 10.1038/srep25555 | - |
dc.contributor.localauthor | Kang, Jeung Ku | - |
dc.contributor.nonIdAuthor | Song, Min-Kyu | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LITHIUM-SULFUR BATTERIES | - |
dc.subject.keywordPlus | LI-S BATTERIES | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | RECENT PROGRESS | - |
dc.subject.keywordPlus | LONG-LIFE | - |
dc.subject.keywordPlus | CATHODE | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | PROSPECTS | - |
dc.subject.keywordPlus | STORAGE | - |
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