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Hydrogen bonding-reinforced hydrogel electrolyte for flexible, robust, and all-in-one supercapacitor with excellent low-temperature tolerance

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dc.contributor.authorYu, H.
dc.contributor.authorRouelle, N.
dc.contributor.authorQiu, A.
dc.contributor.authorOh, J.A.
dc.contributor.authorKempaiah, D.M.
dc.contributor.authorWhittle, J.D.
dc.contributor.authorAakyiir, M.
dc.contributor.authorXing, W.
dc.contributor.authorMa, J.
dc.date.issued2020
dc.descriptionData source: Supporting information, https://doi.org/10.1021/acsami.0c05454
dc.description.abstractFlexible super capacitors are promising energy storage devices for emerging wearable electronics. However, due to the poor mechanical strength, complicated device manufacturing process, and unsatisfactory low-temperature tolerance, their overall performance for practical applications is hindered. Herein, we report a hydrogen bonding reinforced,dual-crosslinked poly(vinyl alcohol), acrylic acid, and H2SO4 (PVA-AA-S)hydrogel electrolyte for all-in-one flexible supercapacitors. The PVA-AA-S hydrogeldemonstrates excellent compressive/tensile properties and high ionic conductivity. Ittolerates compressive stress of 0.53 MPa and is stretchable up to 500%. The hydrogel-basedall-in-one supercapacitor shows promising electrochemical performance under various harshconditions. The device energy density and power density reach up to 14.2 μWh cm−2 and0.94 mW cm−2, respectively. Furthermore, it retains nearly 80% capacitance after beingstored at −35 °C for 23 days. The excellent performance of the hydrogel electrolyteoriginates from its abundant strong hydrogen bonding between polymer chains and watermolecules.
dc.identifier.citationACS applied materials & interfaces, 2020; 12(34):37977-37985
dc.identifier.doi10.1021/acsami.0c05454
dc.identifier.issn1944-8252
dc.identifier.issn1944-8252
dc.identifier.urihttps://hdl.handle.net/11541.2/144428
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/DP200101737
dc.rightsCopyright 2020 American Chemical Society Access Condition Notes: Accepted manuscript available after 1 October 2021
dc.source.urihttps://doi.org/10.1021/acsami.0c05454
dc.subjecthydrogen bonding
dc.subjecthydrogel electrolyte
dc.subjectflexible supercapacitor
dc.subjectlow-temperature tolerance
dc.subjectmechanical strength
dc.titleHydrogen bonding-reinforced hydrogel electrolyte for flexible, robust, and all-in-one supercapacitor with excellent low-temperature tolerance
dc.typeJournal article
pubs.publication-statusPublished
ror.fileinfo12204349100001831 13204349090001831 9916434003401831_AM.pdf
ror.mmsid9916434003401831

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