Fast and Durable Lithium Storage Enabled by Tuning Entropy in Wadsley–Roth Phase Titanium Niobium Oxides

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorZheng, Jieen_US
dc.contributor.authorXia, Ruien_US
dc.contributor.authorSun, Conglien_US
dc.contributor.authorYaqoob, Najmaen_US
dc.contributor.authorQiu, Qianyuanen_US
dc.contributor.authorZhong, Lipingen_US
dc.contributor.authorLi, Yongdanen_US
dc.contributor.authorKaghazchi, Payamen_US
dc.contributor.authorZhao, Kangningen_US
dc.contributor.authorElshof, Johan E.tenen_US
dc.contributor.authorHuijben, Marken_US
dc.contributor.departmentDepartment of Chemical and Metallurgical Engineeringen
dc.contributor.groupauthorIndustrial chemistryen
dc.contributor.organizationUniversity of Twenteen_US
dc.contributor.organizationWuhan University of Technologyen_US
dc.contributor.organizationSwiss Federal Institute of Technology Lausanneen_US
dc.date.accessioned2023-08-16T06:20:26Z
dc.date.available2023-08-16T06:20:26Z
dc.date.issued2023-07-26en_US
dc.descriptionFunding Information: J.Z. and R.X. contributed equally to this work. J.Z., R.X., and Q.Q. acknowledge the financial support of the China Scholarships Council (CSC) program, no. 201906150132, no. 201807720013, and no. 201906150134, respectively. The STEM analysis was supported by the National Natural Science Foundation of China (22005230). Publisher Copyright: © 2023 The Authors. Small published by Wiley-VCH GmbH.
dc.description.abstractWadsley–Roth phase titanium niobium oxides have received considerable interest as anodes for lithium ion batteries. However, the volume expansion and sluggish ion/electron transport kinetics retard its application in grid scale. Here, fast and durable lithium storage in entropy-stabilized Fe0.4Ti1.6Nb10O28.8 (FTNO) is enabled by tuning entropy via Fe substitution. By increasing the entropy, a reduction of the calcination temperature to form a phase pure material is achieved, leading to a reduced grain size and, therefore, a shortening of Li+ pathway along the diffusion channels. Furthermore, in situ X-ray diffraction reveals that the increased entropy leads to the decreased expansion along a–axis, which stabilizes the lithium intercalation channel. Density functional theory modeling indicates the origin to be the more stable Fe-O bond as compared to Ti-O bond. As a result, the rate performance is significantly enhanced exhibiting a reversible capacity of 73.7 mAh g−1 at 50 C for FTNO as compared to 37.9 mAh g−1 for its TNO counterpart. Besides, durable cycling is achieved by FTNO, which delivers a discharge capacity of 130.0 mAh g−1 after 6000 cycles at 10 C. Finally, the potential impact for practical application of FTNO anodes has been demonstrated by successfully constructing fast charging and stable LiFePO4‖FTNO full cells.en
dc.description.versionPeer revieweden
dc.format.extent14
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationZheng, J, Xia, R, Sun, C, Yaqoob, N, Qiu, Q, Zhong, L, Li, Y, Kaghazchi, P, Zhao, K, Elshof, J E T & Huijben, M 2023, ' Fast and Durable Lithium Storage Enabled by Tuning Entropy in Wadsley–Roth Phase Titanium Niobium Oxides ', Small, vol. 19, no. 30, 2301967 . https://doi.org/10.1002/smll.202301967en
dc.identifier.doi10.1002/smll.202301967en_US
dc.identifier.issn1613-6810
dc.identifier.issn1613-6829
dc.identifier.otherPURE UUID: 485e58a6-87a7-4f5e-a0d0-e810947bdd8aen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/485e58a6-87a7-4f5e-a0d0-e810947bdd8aen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85151635951&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/118568660/CHEM_Zheng_et_al_Fast_and_Durable_2023_Small.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/122454
dc.identifier.urnURN:NBN:fi:aalto-202308164804
dc.language.isoenen
dc.publisherWiley-VCH Verlag
dc.relation.ispartofseriesSmallen
dc.relation.ispartofseriesVolume 19, issue 30en
dc.rightsopenAccessen
dc.subject.keywordentropyen_US
dc.subject.keywordfast chargingen_US
dc.subject.keywordiron substitutionen_US
dc.subject.keywordlithium-ion batteriesen_US
dc.subject.keywordWadsley–Roth phaseen_US
dc.titleFast and Durable Lithium Storage Enabled by Tuning Entropy in Wadsley–Roth Phase Titanium Niobium Oxidesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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[article-cris] Kemian tekniikan korkeakoulu / CHEM