Mixed Ionic-Electronic Conductor of Perovskite Li(x)La(y)MO(3-)(delta)toward Carbon-Free Cathode for Reversible Lithium-Air Batteries

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dc.contributor.authorMa, Sang Bokko
dc.contributor.authorKwon, Hyuk Jaeko
dc.contributor.authorKim, Mokwonko
dc.contributor.authorBak, Seong-Minko
dc.contributor.authorLee, Hyunpyoko
dc.contributor.authorEhrlich, Steven N.ko
dc.contributor.authorCho, Jeong-Juko
dc.contributor.authorIm, Dongminko
dc.contributor.authorSeo, Dong-Hwako
dc.date.accessioned2023-05-03T05:00:31Z-
dc.date.available2023-05-03T05:00:31Z-
dc.date.created2023-05-03-
dc.date.created2023-05-03-
dc.date.created2023-05-03-
dc.date.issued2020-10-
dc.identifier.citationADVANCED ENERGY MATERIALS, v.10, no.38-
dc.identifier.issn1614-6832-
dc.identifier.urihttp://hdl.handle.net/10203/306454-
dc.description.abstractMixed ionic-electronic conductors (MIECs) can play a pivotal role in achieving high energies and power densities in rechargeable batteries owing to their ability to simultaneously conduct ions and electrons. Herein, a new strategy is proposed wherein late 3d transition metals (TMs) are substituted into a perovskite Li-ion conductor to transform it into a Li-containing MIEC. First-principles calculations show that perovskite Li(x)La(y)MO(3)with late 3d TMs have a low oxygen vacancy formation energy, implying high electron carrier concentrations corresponding to high electronic conductivity. The activation barriers for Li diffusion in LixLayMO3(M = Ti, Cr, Mn, Fe, and Co) are below 0.411 eV, resulting in high Li-ion conductivity. The designed perovskites of Li(0.34)La(0.55)MnO(3-)(delta)experimentally prove to have high electronic (2.04 x 10(-3)S cm(-1)) and Li-ion (8.53 x 10(-5)S cm(-1)) conductivities, and when applied in a carbon-free cathode of a Li-air cell, they deliver superior reversibility at 0.21 mAh cm(-2)over 100 charge/discharge cycles while avoiding the degradation associated with carbonaceous materials. This strategy enables the effective design of Li-conducting MIEC and reversible Li-air batteries.-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.titleMixed Ionic-Electronic Conductor of Perovskite Li(x)La(y)MO(3-)(delta)toward Carbon-Free Cathode for Reversible Lithium-Air Batteries-
dc.typeArticle-
dc.identifier.wosid000556030000001-
dc.identifier.scopusid2-s2.0-85089018253-
dc.type.rimsART-
dc.citation.volume10-
dc.citation.issue38-
dc.citation.publicationnameADVANCED ENERGY MATERIALS-
dc.identifier.doi10.1002/aenm.202001767-
dc.contributor.localauthorSeo, Dong-Hwa-
dc.contributor.nonIdAuthorMa, Sang Bok-
dc.contributor.nonIdAuthorKwon, Hyuk Jae-
dc.contributor.nonIdAuthorKim, Mokwon-
dc.contributor.nonIdAuthorBak, Seong-Min-
dc.contributor.nonIdAuthorLee, Hyunpyo-
dc.contributor.nonIdAuthorEhrlich, Steven N.-
dc.contributor.nonIdAuthorCho, Jeong-Ju-
dc.contributor.nonIdAuthorIm, Dongmin-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorlithium diffusion barriers-
dc.subject.keywordAuthorlithium-air batteries-
dc.subject.keywordAuthormixed ionic-electronic conductors-
dc.subject.keywordAuthorperovskites-
dc.subject.keywordPlusOXYGEN BATTERY-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusELECTROLYTES-
dc.subject.keywordPlusCHEMISTRY-
dc.subject.keywordPlusCATALYSTS-
dc.subject.keywordPlusSOLVENTS-
dc.subject.keywordPlusSPECTRA-
dc.subject.keywordPlusOXIDES-
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