Formation of LiF-rich Cathode-Electrolyte Interphase by Electrolyte Reduction

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dc.contributor.authorBai, Panxing
dc.contributor.authorJi, Xiao
dc.contributor.authorZhang, Jiaxun
dc.contributor.authorZhang, Weiran
dc.contributor.authorHou, Singyuk
dc.contributor.authorSu, Hai
dc.contributor.authorLi, Mengjie
dc.contributor.authorDeng, Tao
dc.contributor.authorCao, Longsheng
dc.contributor.authorLiu, Sufu
dc.contributor.authorHe, Xinzi
dc.contributor.authorXu, Yunhua
dc.contributor.authorWang, Chunsheng
dc.date.accessioned2023-09-21T19:34:57Z
dc.date.available2023-09-21T19:34:57Z
dc.date.issued2022-04-08
dc.description.abstractThe capacityof transitionmetal oxide cathodefor Li-ionbatteriescan be furtherenhancedby increas-ing the chargingpotential.However,these high voltagecathodessufferfrom fast capacitydecaybecausethelargevolumechangeof cathodebreaksthe activematerialsand cathode-electrolyteinterphase(CEI),resultingin electrolytepenetrationinto brokenactivematerialsand continuousside reactionsbetweencath-ode and electrolytes.Herein,a robustLiF-richCEI wasformedby potentiostaticreductionof fluorinatedelec-trolyteat a low potentialof 1.7 V. By takingLiCoO2asa modelcathode,we demonstratethat the LiF-richCEImaintainsthe structuralintegrityand suppresseselectro-lyte penetrationat a high cut-offpotentialof 4.6 V. TheLiCoO2with LiF-richCEI exhibiteda capacityof198 mAhg
dc.description.urihttps://doi.org/10.1002/anie.202202731
dc.identifierhttps://doi.org/10.13016/dspace/vw1m-qpxv
dc.identifier.citationP. Bai, X. Ji, J. Zhang, W. Zhang, S. Hou, H. Su, M. Li, T. Deng, L. Cao, S. Liu, X. He, Y. Xu, C. Wang, Angew. Chem. Int. Ed. 2022, 61, e202202731; Angew. Chem. 2022, 134, e202202731.
dc.identifier.urihttp://hdl.handle.net/1903/30575
dc.language.isoen_US
dc.publisherWiley
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.relation.isAvailableAtA. James Clark School of Engineeringen_us
dc.relation.isAvailableAtChemical & Biomolecular Engineeringen_us
dc.subjectfluorinated electrolyte
dc.subjecthigh-voltage cathodes
dc.subjectLiF-rich Cathode-Electroltye Interphase
dc.subjectpotentiostatic reduction
dc.titleFormation of LiF-rich Cathode-Electrolyte Interphase by Electrolyte Reduction
dc.typeArticle
local.equitableAccessSubmissionNo

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