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dc.contributor.authorLi, Gaoran
dc.contributor.authorWang, Can
dc.contributor.authorCai, Wenlong
dc.contributor.authorLin, Zhan
dc.contributor.authorLi, Zhoupeng
dc.contributor.authorZhang, Shanqing
dc.date.accessioned2017-07-26T00:50:55Z
dc.date.available2017-07-26T00:50:55Z
dc.date.issued2016
dc.identifier.issn1884-4049
dc.identifier.doi10.1038/am.2016.138
dc.identifier.urihttp://hdl.handle.net/10072/100470
dc.description.abstractThe development of lithium–sulfur (Li–S) batteries is of practical significance to meet the rapidly escalating demand for advanced energy storage technologies with long life and high-energy density. However, the dissolution and shuttling of the intermediate polysulfides (PS) initiates the loss of active sulfur and the poisoning of the lithium anode, leading to unsatisfactory cyclability and consequently hinders the commercialization of Li–S batteries. Herein, we develop a facile strategy to tame the PS dissolution and the shuttling effect in the Li–S system by introducing a modified polybenzimidazole (mPBI) with multiple functions. As a binder, the excellent mechanical property of mPBI endows the sulfur electrode with strong integrity and, therefore, results in high sulfur loading (7.2 mg cm−2), whereas the abundant chemical interaction between mPBI and PS affords efficient PS adsorption to inhibit sulfur loss and prolong battery life. As a functional agent for the separator, the mPBI builds a PS shield onto the separator to block PS’s migration to further suppress the PS shuttling. The dual actions of mPBI confer an excellent performance of 750 mAh g−1 (or 5.2 mAh cm−2) after 500 cycles at C/5 on the Li–S battery with an ultralow capacity fading rate of 0.08% per cycle.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherNature Japan KK
dc.relation.ispartofpagefrome317-1
dc.relation.ispartofpagetoe317-8
dc.relation.ispartofissue10
dc.relation.ispartofjournalNPG Asia Materials
dc.relation.ispartofvolume8
dc.subject.fieldofresearchCondensed matter physics
dc.subject.fieldofresearchPhysical chemistry
dc.subject.fieldofresearchMaterials engineering
dc.subject.fieldofresearchMaterials engineering not elsewhere classified
dc.subject.fieldofresearchMacromolecular and materials chemistry
dc.subject.fieldofresearchcode5104
dc.subject.fieldofresearchcode3406
dc.subject.fieldofresearchcode4016
dc.subject.fieldofresearchcode401699
dc.subject.fieldofresearchcode3403
dc.titleThe dual actions of modified polybenzimidazole in taming the polysulfide shuttle for long-life lithium–sulfur batteries
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2016 The Author. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
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gro.griffith.authorZhang, Shanqing


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