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DC Field | Value | Language |
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dc.citation.number | 38 | - |
dc.citation.startPage | 2001767 | - |
dc.citation.title | ADVANCED ENERGY MATERIALS | - |
dc.citation.volume | 10 | - |
dc.contributor.author | Ma, Sang Bok | - |
dc.contributor.author | Kwon, Hyuk Jae | - |
dc.contributor.author | Kim, Mokwon | - |
dc.contributor.author | Bak, Seong-Min | - |
dc.contributor.author | Lee, Hyunpyo | - |
dc.contributor.author | Ehrlich, Steven N. | - |
dc.contributor.author | Cho, Jeong-Ju | - |
dc.contributor.author | Im, Dongmin | - |
dc.contributor.author | Seo, Dong-Hwa | - |
dc.date.accessioned | 2023-12-21T17:06:23Z | - |
dc.date.available | 2023-12-21T17:06:23Z | - |
dc.date.created | 2020-08-27 | - |
dc.date.issued | 2020-10 | - |
dc.description.abstract | Mixed 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.identifier.bibliographicCitation | ADVANCED ENERGY MATERIALS, v.10, no.38, pp.2001767 | - |
dc.identifier.doi | 10.1002/aenm.202001767 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.scopusid | 2-s2.0-85089018253 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/48041 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/full/10.1002/aenm.202001767 | - |
dc.identifier.wosid | 000556030000001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Mixed Ionic-Electronic Conductor of Perovskite Li(x)La(y)MO(3-)(delta)toward Carbon-Free Cathode for Reversible Lithium-Air Batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | lithium diffusion barriers | - |
dc.subject.keywordAuthor | lithium-air batteries | - |
dc.subject.keywordAuthor | mixed ionic-electronic conductors | - |
dc.subject.keywordAuthor | perovskites | - |
dc.subject.keywordPlus | OXYGEN BATTERY | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | ELECTROLYTES | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | SOLVENTS | - |
dc.subject.keywordPlus | SPECTRA | - |
dc.subject.keywordPlus | OXIDES | - |
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