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dc.contributor.authorLiu, Jie
dc.contributor.authorXuan, Yuxue
dc.contributor.authorGalpaya, Dilini GD
dc.contributor.authorGu, Yuanxiang
dc.contributor.authorLin, Zhan
dc.contributor.authorZhang, Shanqing
dc.contributor.authorYan, Cheng
dc.contributor.authorFeng, Shouhua
dc.contributor.authorWang, Lei
dc.date.accessioned2019-05-29T13:16:14Z
dc.date.available2019-05-29T13:16:14Z
dc.date.issued2018
dc.identifier.issn2050-7488
dc.identifier.doi10.1039/C8TA07840H
dc.identifier.urihttp://hdl.handle.net/10072/382087
dc.description.abstractConstructing high-areal-capacity anodes with high loading for Li-ion batteries is still an enormous challenge, due to the drastic volume change of large-capacity anode materials during cycling. The conventional PVDF binder system fails to withstand the degradation of high-loading electrodes. Therefore, advanced binders are urgently required. Herein, for the first time, the guar gum (GG) biopolymer has been exploited as a robust binder for micro-sized ZnCo2O4 (ZCO) anode materials. Because of its robust mechanical properties and strong interactions with ZCO, the cycling stability of the ZCO anode has been significantly improved with a capacity of 412 mA h g−1 after 600 cycles at 1200 mA g−1. More importantly, the ZCO can act as a “crosslinking agent” to in situ form a robust network with GG, which efficiently maintains the electrode structure stability. Hence, a ZCO anode with an ultrahigh loading of 6.73 mg cm−2 can be achieved and deliver a high areal capacity of 5.6 mA h cm−2. Simultaneously, benefiting from the high tap density of micro-ZCO, the ZCO anode gives a high volumetric capacity of 1179 mA h cm−3. This study will make a significant contribution to accelerating the progress of designing high-areal-capacity anodes.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherRoyal Society of Chemistry
dc.publisher.placeUnited Kingdom
dc.relation.ispartofpagefrom19455
dc.relation.ispartofpageto19462
dc.relation.ispartofjournalJournal of Materials Chemistry A
dc.relation.ispartofvolume6
dc.subject.fieldofresearchMacromolecular and materials chemistry
dc.subject.fieldofresearchMacromolecular and materials chemistry not elsewhere classified
dc.subject.fieldofresearchMaterials engineering
dc.subject.fieldofresearchOther engineering
dc.subject.fieldofresearchChemical engineering
dc.subject.fieldofresearchcode3403
dc.subject.fieldofresearchcode340399
dc.subject.fieldofresearchcode4016
dc.subject.fieldofresearchcode4099
dc.subject.fieldofresearchcode4004
dc.subject.keywordsAnodes
dc.subject.keywordsLi-ion batteries
dc.subject.keywordsPVDF binder system
dc.subject.keywordsHigh-loading electrodes
dc.subject.keywordsHerein
dc.subject.keywordsGuar gum (GG) biopolymer
dc.subject.keywordsZnCo2O4 (ZCO) anode materials
dc.titleA high-volumetric-capacity and high-areal-capacity ZnCo2O4 anode for Li-ion batteries enabled by a robust biopolymer binder
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorZhang, Shanqing


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