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The origin of impedance rise in Ni-Rich positive electrodes for lithium-ion batteries

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dc.contributor.authorLee, Rung-Chuanen
dc.contributor.authorFranklin, Josephen
dc.contributor.authorTian, Chixiaen
dc.contributor.authorNordlund, Dennisen
dc.contributor.authorDoeff, Marca M.en
dc.contributor.authorKostecki, Roberten
dc.contributor.departmentAcademy of Integrated Scienceen
dc.date.accessioned2021-07-21T14:28:40Zen
dc.date.available2021-07-21T14:28:40Zen
dc.date.issued2021-06-30en
dc.description.abstractThe cycling performance of nickel-rich lithium nickel cobalt manganese oxide (NMC) electrodes in Li-ion batteries (LIBs) partially depends on the control of the kinetics of degradation processes that result in impedance rise. The impedance contribution from surface film formation at the NMC/electrolyte interfaces is highly dependent on the initial chemical composition and the structure of the NMC surfaces. Through comparison of film quantity and electrochemical performance of composite electrodes made of pristine- and surface treated-NMC materials, we are able to demonstrate that a simple surface treatment suppressed the subsequent film formation and reduced impedance rise of the Li/NMC half-cells during cycling. Detailed modelling of factors affecting cell impedance provide further insights to index individual interphase resistance, highlighting the underlying positive effects of the proposed surface treatment, and demonstrating the importance of homogeneous, electronically conducting matrices throughout the composite electrode.en
dc.description.notesThis work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, U.S. Department of Energy, under Contract DEAC0205CH11231. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DEAC0276SF00515. The authors gratefully acknowledge Dr. Vincent S. Battaglia and Dr. Yanbao Fu (LBNL) for supplying electrode materials, Dr. Ethan Crumlin, Dr. Wanli Yang (ALS/LBNL) for fruitful discussions and Dr. Liang Zhang and Dr. Jinghua Guo (ALS/LBNL) for refinement of XAS data and database support. JBF acknowledges support from the European Union Horizon 2020 under the Marie SklodowskaCurie grant agreement No. 705339 and is grateful for support from the Science and Technology Facilities Council Early Career award, ST/K00171X/1.en
dc.description.sponsorshipAssistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, U.S. Department of EnergyUnited States Department of Energy (DOE) [DEAC02-05CH11231]; U.S. Department of Energy, Office of Science, Office of Basic Energy SciencesUnited States Department of Energy (DOE) [DEAC02-76SF00515]; European UnionEuropean Commission [705339]; Science and Technology Facilities Council Early Career award [ST/K00171X/1]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.jpowsour.2021.229885en
dc.identifier.eissn1873-2755en
dc.identifier.issn0378-7753en
dc.identifier.other229885en
dc.identifier.urihttp://hdl.handle.net/10919/104243en
dc.identifier.volume498en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectLithium-ion batteryen
dc.subjectNi-rich NMCen
dc.subjectImpedance growthen
dc.subjectInterfacial stabilityen
dc.subjectSolid electrolyte interphaseen
dc.titleThe origin of impedance rise in Ni-Rich positive electrodes for lithium-ion batteriesen
dc.title.serialJournal of Power Sourcesen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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