The Electrochemical Performances of n-Type Extended Lattice Spaced Si Negative Electrodes for Lithium-Ion Batteries

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dc.contributor.authorLee, Moonsang
dc.contributor.authorYoon, Dockyoung
dc.contributor.authorLee, Uk Jae
dc.contributor.authorUmirov, Nurzhan
dc.contributor.authorMukanova, Aliya
dc.contributor.authorBakenov, Zhumabay
dc.contributor.authorKim, Sung-Soo
dc.date.accessioned2019-12-12T09:23:23Z
dc.date.available2019-12-12T09:23:23Z
dc.date.issued2019-07
dc.descriptionhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6554560/en_US
dc.description.abstractThe electrochemical performances of lithium-ion batteries with different lattice-spacing Si negative electrodes were investigated. To achieve a homogeneous distribution of impurities in the Si anodes, single crystalline Si wafers with As-dopant were ball-milled to form irregular and agglomerated micro-flakes with an average size of ~10 μm. The structural analysis proved that the As-doped Si negative materials retain the increased lattice constant, thus, keep the existence of the residual tensile stress of around 1.7 GPa compared with undoped Si anode. Electrochemical characterization showed that the As-doped Si anodes have lower discharge capacity, but Coulombic efficiency and capacity retention were improved in contrast with those of the undoped one. This improvement of electrochemical characteristics was attributed to the increased potential barrier on the side of Si anodes, inherited from the electronic and mechanical nature of Si materials doped with As. We believe that this study will guide us the way to optimize the electrochemical performances of LIBs with Si-based anodes.en_US
dc.identifier.citationLee, M., Yoon, D., Lee, U. J., Umirov, N., Mukanova, A., Bakenov, Z., & Kim, S.-S. (2019). The Electrochemical Performances of n-Type Extended Lattice Spaced Si Negative Electrodes for Lithium-Ion Batteries. Frontiers in Chemistry, 7. https://doi.org/10.3389/fchem.2019.00389en_US
dc.identifier.issn2296-2646
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/4450
dc.language.isoenen_US
dc.publisherFrontiers Mediaen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectlithium-ion batteriesen_US
dc.subjectsiliconen_US
dc.subjectdopanten_US
dc.subjectarsenicen_US
dc.subjectdischarge capacityen_US
dc.subjectretentionen_US
dc.titleThe Electrochemical Performances of n-Type Extended Lattice Spaced Si Negative Electrodes for Lithium-Ion Batteriesen_US
dc.typeArticleen_US
workflow.import.sourcescience

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