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dc.contributor.authorWang, Xuehang
dc.contributor.authorZhou, Haitao
dc.contributor.authorLou, Fengliu
dc.contributor.authorLi, Yahao
dc.contributor.authorBuan, Marthe Emelie Melandsø
dc.contributor.authorDuan, Xuezhi
dc.contributor.authorWalmsley, John Charles
dc.contributor.authorSheridan, Edel
dc.contributor.authorChen, De
dc.date.accessioned2018-05-08T11:26:06Z
dc.date.available2018-05-08T11:26:06Z
dc.date.created2016-11-28T20:46:20Z
dc.date.issued2016
dc.identifier.citationChemSusChem. 2016, 9 (21), 3093-3101.nb_NO
dc.identifier.issn1864-5631
dc.identifier.urihttp://hdl.handle.net/11250/2497562
dc.description.abstractThe specific energy of a supercapacitor (SC) with an ionic liquid (IL)-based electrolyte is larger than that using an aqueous electrolyte owing to the wide operating voltage window provided by the IL. However, the wide-scale application of high-energy SCs using ILs is limited owing to a serious reduction of the energy with increasing power. The introduction of macropores to the porous material can mitigate the reduction in the gravimetric capacitance at high rates, but this lowers the volumetric capacitance. Synthetic polymers can be used to obtain macroporous frameworks with high apparent densities, but the preservation of the frameworks during activation is challenging. To simultaneously achieve high gravimetric capacitance, volumetric capacitance, and rate capability, a systematic strategy was used to synthesize a densely knitted carbon framework with a hierarchical pore structure by using a polymer. The energy of the SC using the hierarchically porous carbon was 160 Wh kg−1 and 85 Wh L−1 on an active material base at a power of 100 W kg−1 in an IL electrolyte, and 60 % of the energy was still retained at a power larger than 5000 W kg−1. To illustrate, a full-packaged SC with the material could store/release energy comparable to a Ni–metal hydride battery (gravimetrically) and one order of magnitude higher than a commercial carbon-based SC (volumetrically), within one minute.nb_NO
dc.language.isoengnb_NO
dc.publisherWileynb_NO
dc.titleBoosted Supercapacitive Energy with High Rate Capability of aCarbon Framework with Hierarchical Pore Structure in an Ionic Liquidnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber3093-3101nb_NO
dc.source.volume9nb_NO
dc.source.journalChemSusChemnb_NO
dc.source.issue21nb_NO
dc.identifier.doi10.1002/cssc.201600779
dc.identifier.cristin1405400
dc.relation.projectNorges forskningsråd: 245963nb_NO
dc.relation.projectNorges forskningsråd: 215522nb_NO
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2016 by Wileynb_NO
cristin.unitcode194,66,30,0
cristin.unitnameInstitutt for kjemisk prosessteknologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.fulltextpreprint
cristin.qualitycode1


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