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dc.contributor.authorLing, Min
dc.contributor.authorZhao, Hui
dc.contributor.authorXiao, Xingcheng
dc.contributor.authorShi, Feifei
dc.contributor.authorWu, Mingyan
dc.contributor.authorQiu, Jingxia
dc.contributor.authorLi, Sheng
dc.contributor.authorSong, Xiangyun
dc.contributor.authorLiu, Gao
dc.contributor.authorZhang, Shanqing
dc.date.accessioned2018-06-20T22:58:35Z
dc.date.available2018-06-20T22:58:35Z
dc.date.issued2015
dc.identifier.issn2050-7488
dc.identifier.doi10.1039/C4TA05817H
dc.identifier.urihttp://hdl.handle.net/10072/67842
dc.description.abstractThe high capacity Si (4200 mA h g−1, Li4.4Si) commonly undergoes cracking and delamination due to drastic volume change (∼300%) during lithiation/delithiation processes in lithium ion batteries (LIBs). In this work, abundant and sustainable natural polymer gum arabic (GA) and low cost polyacrylic acid (PAA) are used to fabricate Si anodes with resilient, crack-blocking properties. The esterification reaction between GA and PAA establishes a flexible network resulting in reinforced mechanical strength and enhanced coherent strength. Meanwhile, the water vapour resulting from the esterification reaction generates micron-sized pores which relieves the stress and blocks the formation and propagation of cracks. As a result of the crack-blocking effect, the resultant Si anodes present a superior volumetric capacity of 2890 A h L−1. In addition, charge–discharge cycling for more than 1000 cycles is achieved with the Li insertion capacity limited to 1000 mA h g−1 at a 1 C rate.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherR S C Publications
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationY
dc.relation.ispartofpagefrom2036
dc.relation.ispartofpageto2042
dc.relation.ispartofjournalJournal of Materials Chemistry A
dc.relation.ispartofvolume3
dc.rights.retentionY
dc.subject.fieldofresearchMacromolecular and materials chemistry
dc.subject.fieldofresearchOther chemical sciences not elsewhere classified
dc.subject.fieldofresearchMaterials engineering
dc.subject.fieldofresearchChemical engineering
dc.subject.fieldofresearchcode3403
dc.subject.fieldofresearchcode349999
dc.subject.fieldofresearchcode4016
dc.subject.fieldofresearchcode4004
dc.titleLow cost and environmentally benign crack-blocking structures for long life and high power Si electrodes in lithium ion batteries
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2015 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorZhao, Huijun


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