DC Field | Value | Language |
---|---|---|
dc.contributor.author | Song, Jongchan | ko |
dc.contributor.author | Lee, Hongkyung | ko |
dc.contributor.author | Choo, Min-Ju | ko |
dc.contributor.author | Park, Jung-Ki | ko |
dc.contributor.author | Kim, Hee-Tak | ko |
dc.date.accessioned | 2016-04-20T06:27:46Z | - |
dc.date.available | 2016-04-20T06:27:46Z | - |
dc.date.created | 2015-10-19 | - |
dc.date.created | 2015-10-19 | - |
dc.date.issued | 2015-09 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v.5 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/10203/205354 | - |
dc.description.abstract | The inhomogeneous Li electrodeposition of lithium metal electrode has been a major impediment to the realization of rechargeable lithium metal batteries. Although single ion conducting ionomers can induce more homogeneous Li electrodeposition by preventing Li+ depletion at Li surface, currently available materials do not allow room-temperature operation due to their low room temperature conductivities. In the paper, we report that a highly conductive ionomer/liquid electrolyte hybrid layer tightly laminated on Li metal electrode can realize stable Li electrodeposition at high current densities up to 10 mA cm(-2) and permit room-temperature operation of corresponding Li metal batteries with low polarizations. The hybrid layer is fabricated by laminating few micron-thick Nafion layer on Li metal electrode followed by soaking 1 M LiPF6 EC/DEC (1/1) electrolyte. The Li/Li symmetric cell with the hybrid layer stably operates at a high current density of 10 mA cm(-2) for more than 2000 h, which corresponds to more than five-fold enhancement compared with bare Li metal electrode. Also, the prototype Li/LiCoO2 battery with the hybrid layer offers cycling stability more than 350 cycles. These results demonstrate that the hybrid strategy successfully combines the advantages of bi-ionic liquid electrolyte (fast Li+ transport) and single ionic ionomer (prevention of Li+ depletion). | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | BLOCK-COPOLYMER ELECTROLYTES | - |
dc.subject | COMPOSITE PROTECTIVE LAYER | - |
dc.subject | LITHIATED NAFION IONOMER | - |
dc.subject | POLYMER ELECTROLYTES | - |
dc.subject | LI METAL | - |
dc.subject | FUNCTIONAL SEPARATOR | - |
dc.subject | PROPYLENE CARBONATE | - |
dc.subject | DENDRITE FORMATION | - |
dc.subject | GEL ELECTROLYTES | - |
dc.subject | BATTERIES | - |
dc.title | Ionomer-Liquid Electrolyte Hybrid Ionic Conductor for High Cycling Stability of Lithium Metal Electrodes | - |
dc.type | Article | - |
dc.identifier.wosid | 000361814500001 | - |
dc.identifier.scopusid | 2-s2.0-84942799089 | - |
dc.type.rims | ART | - |
dc.citation.volume | 5 | - |
dc.citation.publicationname | SCIENTIFIC REPORTS | - |
dc.identifier.doi | 10.1038/srep14458 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Park, Jung-Ki | - |
dc.contributor.localauthor | Kim, Hee-Tak | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | BLOCK-COPOLYMER ELECTROLYTES | - |
dc.subject.keywordPlus | COMPOSITE PROTECTIVE LAYER | - |
dc.subject.keywordPlus | LITHIATED NAFION IONOMER | - |
dc.subject.keywordPlus | POLYMER ELECTROLYTES | - |
dc.subject.keywordPlus | LI METAL | - |
dc.subject.keywordPlus | FUNCTIONAL SEPARATOR | - |
dc.subject.keywordPlus | PROPYLENE CARBONATE | - |
dc.subject.keywordPlus | DENDRITE FORMATION | - |
dc.subject.keywordPlus | GEL ELECTROLYTES | - |
dc.subject.keywordPlus | BATTERIES | - |
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