Water-soluble binders that improve electrochemical sodium-ion storage properties in a NaTi2(PO4)3 anode

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dc.contributor.authorZhang, Yan
dc.contributor.authorGrant, Alex
dc.contributor.authorCarroll, Aoife
dc.contributor.authorGulzar, Umair
dc.contributor.authorFerguson, Matthew
dc.contributor.authorRoy, Ahin
dc.contributor.authorNicolosi, Valeria
dc.contributor.authorO'Dwyer, Colm
dc.contributor.funderHorizon 2020
dc.contributor.funderIrish Research Council
dc.contributor.funderScience Foundation Ireland
dc.date.accessioned2023-05-30T12:33:14Z
dc.date.available2023-05-25T12:36:19Zen
dc.date.available2023-05-30T12:33:14Z
dc.date.issued2023-05-22
dc.date.updated2023-05-25T11:36:21Zen
dc.description.abstractWater-soluble binders are demonstrated to provide significantly better capacity, cycle life stability and rate response for NASICON-type NaTi2(PO4)3 Na-ion battery anodes during reversible sodiation compared to electrodes made using polyvinylidene difluoride-containing slurries. The role of carboxymethyl cellulose (CMC) binders on the physical structure and chemical interfacial reactions with sodium-poor NaTi2(PO4)3 are uncovered using electron microscopy and spectroscopy data and we show that a more stable NASICON NaTi2(PO4)3 structure is found from the desodiation process from compensation of sodium deficiencies in the NaTi2(PO4)3 by extra sodium from the CMC binder. When the binder comprises CMC and a styrene butadiene rubber (SBR) additive, the electrode delivers significantly better voltammetric and galvanostatic electrochemical response with a specific capacity of ∼120 mAh g−1 with capacity retention of 90.5% for 500 cycles at 0.2 C (1 C = 133 mAh g−1), and ∼54 mAh g−1 at 20 C. The durability of the electrode during cycling and the stability of the redox processes ensures a higher capacity, longer cycle life electrode which is important for sustainable materials development for Na-ion technologies.
dc.description.sponsorshipIrish Research Council (Advanced Laureate Award IRCLA/19/118; Government of Ireland Postdoctoral Fellowship GOIPD/2021/438); Science Foundation Ireland (SFI FFT R21/196)
dc.description.statusPeer revieweden
dc.description.versionPublished Version
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid050529
dc.identifier.citationZhang, Y., Grant, A., Carroll, A., Gulzar, U., Ferguson, M., Roy, A., Nicolosi, V. and O'Dwyer, C. (2023) 'Water-soluble binders that improve electrochemical sodium-ion storage properties in a NaTi2(PO4)3 anode', Journal of The Electrochemical Society, 170(5), 050529 (10pp). doi: 10.1149/1945-7111/acd3b8
dc.identifier.doi10.1149/1945-7111/acd3b8en
dc.identifier.eissn1945-7111
dc.identifier.endpage10
dc.identifier.issn0013-4651
dc.identifier.issued5
dc.identifier.journaltitleJournal of The Electrochemical Society
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/14521
dc.identifier.volume170
dc.language.isoenen
dc.publisherIOP Publishing
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/825114/EU/Smart Autonomous Multi Modal Sensors for Vital Signs Monitoring/SmartVista
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::ERC::ERC-COG/681544/EU/3D Printing of Novel 2D Nanomaterials: Adding Advanced 2D Functionalities to Revolutionary Tailored 3D Manufacturing/3D2DPrint
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres Programme::Phase 2/12/RC/2278_P2/IE/AMBER_Phase 2/
dc.rights© 2023, the Authors. Published on behalf of The Electrochemical Society by IOP Publishing Limited. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/ by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/ 1945-7111/acd3b8]
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectSodium
dc.subjectBattery
dc.subjectAnode
dc.subjectBinder
dc.subjectElectrochemistry
dc.titleWater-soluble binders that improve electrochemical sodium-ion storage properties in a NaTi2(PO4)3 anode
dc.typeArticle (peer-reviewed)
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