Aluminum interdiffusion into LiCoO2 using atomic layer deposition for high rate lithium ion batteries

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dc.contributor.authorTeranishi, Takashi
dc.contributor.authorYoshikawa, Yumi
dc.contributor.authorYoneda, Mika
dc.contributor.authorKishimoto, Akira
dc.contributor.authorHalpin, Jennifer
dc.contributor.authorO'Brien, Shane
dc.contributor.authorModreanu, Mircea
dc.contributor.authorPovey, Ian M.
dc.contributor.funderJapan Society for the Promotion of Scienceen
dc.date.accessioned2019-08-22T11:44:54Z
dc.date.available2019-08-22T11:44:54Z
dc.date.issued2018-06-18
dc.date.updated2019-08-22T11:39:22Z
dc.description.abstractHere, as with previous work, atomic layer deposition (ALD) has been used to deposit Al2O3 on positive electrode active materials, LiCoO2, to create a protective barrier layer, suppress the high potential phase transition, and thus reduce the subsequent Co dissolution. However, in this study it was found that it also resulted in the reduction of the charge transfer resistance at the positive electrode–electrolyte interface, thus enhancing the performance of the battery. Energy-dispersive X-ray spectroscopy, in conjunction with transmission electron microscopy, shows that a discrete Al2O3 shell was not formed under the selected growth conditions and that the Al diffused into the bulk LiCoO2. The resulting active oxide material, which was significantly thicker than the nominally ALD growth rate would predict, is proposed to be of the form LiCoO2:Al with amorphous and crystalline regions depending on the Al content. The cells consisting of the modified electrodes were found to have good cycling stability and discharge capacities of ∼110 mA h g–1 (0.12 mA h cm–2) and ∼35 mA h g–1 (0.04 mA h cm–2) at 50 and 100 C, respectively.en
dc.description.sponsorshipJapan Society for the Promotion of Science (Grant-in-Aid for Scientific Research (B) (No. 15H04126) and Challenging Exploratory Research (Grant No. 16K14094))en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationTeranishi, T., Yoshikawa, Y., Yoneda, M., Kishimoto, A., Halpin, J., O’Brien, S., Modreanu, M. and Povey, I. M. (2018) 'Aluminum Interdiffusion into LiCoO2 Using Atomic Layer Deposition for High Rate Lithium Ion Batteries', ACS Applied Energy Materials, 1(7), pp. 3277-3282. doi: 10.1021/acsaem.8b00496en
dc.identifier.doi10.1021/acsaem.8b00496en
dc.identifier.endpage3282en
dc.identifier.issn2574-0962
dc.identifier.issued7en
dc.identifier.journaltitleACS Applied Energy Materialsen
dc.identifier.startpage3277en
dc.identifier.urihttps://hdl.handle.net/10468/8377
dc.identifier.volume1en
dc.language.isoenen
dc.publisherAmerican Chemical Society, ACSen
dc.relation.urihttps://pubs.acs.org/doi/abs/10.1021/acsaem.8b00496
dc.rights© 2018 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/acsaem.8b00496en
dc.subjectAtomic layer depositionen
dc.subjectLithium ion batteriesen
dc.subjectSolid electrolyte interfaceen
dc.subjectAl2O3 charge transferen
dc.subjectHigh charge-discharge rateen
dc.titleAluminum interdiffusion into LiCoO2 using atomic layer deposition for high rate lithium ion batteriesen
dc.typeArticle (peer-reviewed)en
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