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Article: A low-cost and dendrite-free rechargeable aluminium-ion battery with superior performance

TitleA low-cost and dendrite-free rechargeable aluminium-ion battery with superior performance
Authors
KeywordsAluminum
Aluminum alloys
Aluminum chloride
Costs
Electrodes
Issue Date2019
PublisherRSC Publications. The Journal's web site is located at http://pubs.rsc.org/en/journals/journalissues/ta#!recentarticles&all
Citation
Journal of Materials Chemistry A, 2019, v. 7 n. 29, p. 17420-17425 How to Cite?
AbstractAqueous aluminium-ion rechargeable batteries (AAIBs) have attracted lots of attention due to their high theoretical capacity, high volumetric energy density and low price. However, not many aqueous full batteries have been developed successfully due to the low standard reduction potential of Al3+ (−1.68 V vs. standard hydrogen electrode, lower than H+) in aqueous solutions. In this study, we highlight an inexpensive “water-in-salt” aqueous electrolyte (AlCl3·6H2O) that can expand the electrochemical stability window of AAIBs to roughly 4 V. We propose a full aluminum-ion battery (AIB) using such an aqueous electrolyte. Its capacity reached 165 mA h g−1 at 500 mA g−1 (3C), and it exhibited over 95% coulombic efficiency consistently over 1000 cycles. Moreover, the aqueous Al-ion battery we developed is low-cost (the electrolyte is roughly 2% the cost of traditional electrolyte of Al-ion batteries) and dendrite-free in the negative electrode throughout the tests.
Persistent Identifierhttp://hdl.handle.net/10722/284080
ISSN
2019 Impact Factor: 11.301
2015 SCImago Journal Rankings: 2.770

 

DC FieldValueLanguage
dc.contributor.authorPAN, W-
dc.contributor.authorWang, Y-
dc.contributor.authorZHANG, Y-
dc.contributor.authorKWOK, HYH-
dc.contributor.authorWU, M-
dc.contributor.authorZHAO, X-
dc.contributor.authorLeung, DYC-
dc.date.accessioned2020-07-20T05:55:56Z-
dc.date.available2020-07-20T05:55:56Z-
dc.date.issued2019-
dc.identifier.citationJournal of Materials Chemistry A, 2019, v. 7 n. 29, p. 17420-17425-
dc.identifier.issn2050-7488-
dc.identifier.urihttp://hdl.handle.net/10722/284080-
dc.description.abstractAqueous aluminium-ion rechargeable batteries (AAIBs) have attracted lots of attention due to their high theoretical capacity, high volumetric energy density and low price. However, not many aqueous full batteries have been developed successfully due to the low standard reduction potential of Al3+ (−1.68 V vs. standard hydrogen electrode, lower than H+) in aqueous solutions. In this study, we highlight an inexpensive “water-in-salt” aqueous electrolyte (AlCl3·6H2O) that can expand the electrochemical stability window of AAIBs to roughly 4 V. We propose a full aluminum-ion battery (AIB) using such an aqueous electrolyte. Its capacity reached 165 mA h g−1 at 500 mA g−1 (3C), and it exhibited over 95% coulombic efficiency consistently over 1000 cycles. Moreover, the aqueous Al-ion battery we developed is low-cost (the electrolyte is roughly 2% the cost of traditional electrolyte of Al-ion batteries) and dendrite-free in the negative electrode throughout the tests.-
dc.languageeng-
dc.publisherRSC Publications. The Journal's web site is located at http://pubs.rsc.org/en/journals/journalissues/ta#!recentarticles&all-
dc.relation.ispartofJournal of Materials Chemistry A-
dc.subjectAluminum-
dc.subjectAluminum alloys-
dc.subjectAluminum chloride-
dc.subjectCosts-
dc.subjectElectrodes-
dc.titleA low-cost and dendrite-free rechargeable aluminium-ion battery with superior performance-
dc.typeArticle-
dc.identifier.emailWang, Y: wang1fei@connect.hku.hk-
dc.identifier.emailLeung, DYC: ycleung@hku.hk-
dc.identifier.authorityLeung, DYC=rp00149-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/C9TA05207K-
dc.identifier.scopuseid_2-s2.0-85069754264-
dc.identifier.hkuros311342-
dc.identifier.volume7-
dc.identifier.issue29-
dc.identifier.spage17420-
dc.identifier.epage17425-
dc.publisher.placeUnited Kingdom-

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