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dc.contributor.authorKim, Y
dc.contributor.authorJacquet, Q
dc.contributor.authorGriffith, KJ
dc.contributor.authorLee, J
dc.contributor.authorDey, S
dc.contributor.authorRinkel, BLD
dc.contributor.authorGrey, CP
dc.date.accessioned2022-01-28T14:42:17Z
dc.date.available2022-01-28T14:42:17Z
dc.date.issued2021
dc.date.submitted2020-10-17
dc.identifier.issn0013-4651
dc.identifier.otherjesabd919
dc.identifier.otherabd919
dc.identifier.otherjes-102746.r1
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/333045
dc.description.abstract<jats:p>Highly stable lithium-ion battery cycling of niobium tungsten oxide (Nb<jats:sub>16</jats:sub>W<jats:sub>5</jats:sub>O<jats:sub>55</jats:sub>, NWO) is demonstrated in full cells with cathode materials LiNi<jats:sub>0.6</jats:sub>Mn<jats:sub>0.2</jats:sub>Co<jats:sub>0.2</jats:sub>O<jats:sub>2</jats:sub> (NMC-622) and LiFePO<jats:sub>4</jats:sub> (LFP). The cells show high rate performance and long-term stability under 5 C and 10 C cycling rates with a conventional carbonate electrolyte without any additives. The degradation of the cell performance is mainly attributed to the increased charge transfer resistance at the NMC side, consistent with the ex situ XRD and XPS analysis demonstrating the structural stability of NWO during cycling together with minimal electrolyte decomposition. Finally, we demonstrate the temperature-dependent performance of this full cell at 10, 25 and 60 °C and confirm, using <jats:italic>operando</jats:italic> XRD, that the structural change of the NWO material during lithiation/de-lithiation at 60 °C is very similar to its behaviour at 25 °C, reversible and with a low volume change. With the merits of high rate performance and long cycle life, the combination of NWO and a commercial cathode represents a promising, safe battery for fast charge/discharge applications.</jats:p>
dc.description.sponsorshipThis work was supported by EPSRC via the LIBATT grant (EP/M009521/1) and via an Impact Acceleration Account Follow-On grant (EP/R511675/1). The X-ray photoelectron (XPS) data collection was performed at the EPSRC National Facility for XPS (“HarwellXPS”), operated by Cardiff University and UCL, under Contract No. PR16195. We thank S. Shivareddy from CB2Tech Ltd. for advice on variable temperature cell operation. CPG and KJG are shareholders of a company that aims to commercialise fast charging anode materials.
dc.languageen
dc.publisherThe Electrochemical Society
dc.subjectBatteries and Energy Storage
dc.subjectniobium tungsten oxide
dc.subjectanode material
dc.subjectlithium ion battery
dc.subjecthigh rate battery
dc.titleHigh rate lithium ion battery with niobium tungsten oxide anode
dc.typeArticle
dc.date.updated2022-01-28T14:42:16Z
prism.issueIdentifier1
prism.publicationNameJournal of the Electrochemical Society
prism.volume168
dc.identifier.doi10.17863/CAM.80469
rioxxterms.versionofrecord10.1149/1945-7111/abd919
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.contributor.orcidKim, Y [0000-0001-6675-7522]
dc.contributor.orcidJacquet, Q [0000-0002-3684-9423]
dc.contributor.orcidGriffith, KJ [0000-0002-8096-906X]
dc.identifier.eissn1945-7111
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/M009521/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/R511675/1)
cam.issuedOnline2021-01-15


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