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dc.contributor.authorNie, Anmin
dc.contributor.authorCheng, Yingchun
dc.contributor.authorZhu, Yihan
dc.contributor.authorAsayesh-Ardakani, Hasti
dc.contributor.authorTao, Runzhe
dc.contributor.authorMashayek, Farzad
dc.contributor.authorHan, Yu
dc.contributor.authorSchwingenschlögl, Udo
dc.contributor.authorKlie, Robert F.
dc.contributor.authorVaddiraju, Sreeram
dc.contributor.authorShahbazian-Yassar, Reza
dc.date.accessioned2015-08-03T12:09:01Z
dc.date.available2015-08-03T12:09:01Z
dc.date.issued2014-08-28
dc.identifier.issn15306984
dc.identifier.doi10.1021/nl502347z
dc.identifier.urihttp://hdl.handle.net/10754/563755
dc.description.abstractIn rechargeable lithium-ion batteries, understanding the atomic-scale mechanism of Li-induced structural evolution occurring at the host electrode materials provides essential knowledge for design of new high performance electrodes. Here, we report a new crystalline-crystalline phase transition mechanism in single-crystal Zn-Sb intermetallic nanowires upon lithiation. Using in situ transmission electron microscopy, we observed that stacks of atomic planes in an intermediate hexagonal (h-)LiZnSb phase are "shuffled" to accommodate the geometrical confinement stress arising from lamellar nanodomains intercalated by lithium ions. Such atomic rearrangement arises from the anisotropic lithium diffusion and is accompanied by appearance of partial dislocations. This transient structure mediates further phase transition from h-LiZnSb to cubic (c-)Li2ZnSb, which is associated with a nearly "zero-strain" coherent interface viewed along the [001]h/[111]c directions. This study provides new mechanistic insights into complex electrochemically driven crystalline-crystalline phase transitions in lithium-ion battery electrodes and represents a noble example of atomic-level structural and interfacial rearrangements.
dc.description.sponsorshipR.S.-Y. acknowledges the financial support from the National Science Foundation (Awards No. CMMI-1200383 and DMR-1410560) and the American Chemical Society-Petroleum Research Fund (Award No. 51458-ND10). The acquisition of the UIC JEOL JEM-ARM200CF is supported by an MRI-R<SUP>2</SUP> grant from the National Science Foundation (Award No. DMR-0959470). Support from the UIC Research Resources Center is also acknowledged.
dc.publisherAmerican Chemical Society (ACS)
dc.subjectatomic scale
dc.subjectin situ STEM
dc.subjectlithium-ion batteries
dc.subjectphase transition
dc.subjectZn4Sb3 nanowires
dc.titleLithiation-induced shuffling of atomic stacks
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Science Program
dc.contributor.departmentComputational Physics and Materials Science (CPMS)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentNanostructured Functional Materials (NFM) laboratory
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalNano Letters
dc.contributor.institutionDepartment of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, 1400 Townsend DriveHoughton, MI, United States
dc.contributor.institutionArtie McFerrin Department of Chemical Engineering, Texas A and M University, 3122 TAMUCollege Station, Texas, United States
dc.contributor.institutionDepartment of Physics, University of Illinois at ChicagoChicago, IL, United States
dc.contributor.institutionMechanical and Industrial Engineering Department, University of Illinois at ChicagoChicago, United States
kaust.personCheng, Yingchun
kaust.personZhu, Yihan
kaust.personHan, Yu
kaust.personSchwingenschlögl, Udo
dc.date.published-online2014-08-28
dc.date.published-print2014-09-10


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