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dc.contributor.authorKeleş, Özgül
dc.contributor.authorKarahan, Billur Deniz
dc.contributor.authorEryılmaz, Levent
dc.contributor.authorAmine, Rachid
dc.contributor.authorAbouimrane, Ali
dc.contributor.authorChen, Zonghai
dc.contributor.authorZuo, Xiaobing
dc.contributor.authorZhu, Zihua
dc.contributor.authorAl-Hallaj, Said
dc.contributor.authorAmine, Khalil
dc.date.accessioned2020-10-12T12:09:42Z
dc.date.available2020-10-12T12:09:42Z
dc.date.issued2020en_US
dc.identifier.citationKeleş, Ö., Karahan, B. D., Eryılmaz, L., Amine, R., Abouimrane, A., Chen, Z. ... Amine, K. (2020). Superlattice-structured films by magnetron sputtering as new era electrodes for advanced lithium-ion batteries. Nano Energy, 76. https://dx.doi.org/10.1016/j.nanoen.2020.105094en_US
dc.identifier.issn2211-2855
dc.identifier.issn2211-3282
dc.identifier.urihttps://dx.doi.org/10.1016/j.nanoen.2020.105094
dc.identifier.urihttps://hdl.handle.net/20.500.12511/5915
dc.description.abstractSustaining a sound structure in Si-based anodes is extremely challenging because of the high volumetric expansion that occurs upon cycling. To maintain capacity retention during the cycling, there is a need for new designs that rely on engineering-specific hierarchical geometries and/or optimized composite compositions such that at least one of the multiple elements serves as buffer and/or electron conductive pathway in the electrodes. Here, we report an innovative design in which alternate layers of atomic structures involving multiple elements form a new anode material for lithium-ion batteries.In this work, a superlattice-structured film containing Si, Mo, and Cu is fabricated by a simple and scalable magnetron sputtering process for the first time. With the help of the formation of a continuous and repetitive superlattice along the film thickness, a homogeneous stress-strain distribution is attained. In our superlattice thin film, the Si atoms are distributed along the film thickness within the alternate Mo-Cu layers, which act as inactive-conductive layers and as a backbone web to handle the volume expansion of active Si while restricting electrochemical agglomeration. This nano-functional superlattice approach enables harnessing the high energy density of Si while maintaining its structural stability. As a result, the electrode exhibits high energy density and capacity retention even at high cycling rates. The possible use of the film in a full cell is also evaluated using LiMn1.5Ni0.5O4 cathodes. The full cell maintained a stable capacity of about 900 mAh g(anode)(-1) (similar to 93 mA g(cathode)(-1)) over 150 cycles at the similar to 600 mA g(-1) rate.The remarkable performance of this nanostructured, multifunctional superlattice film is found to be promising for applications that require high energy, long calendar life, and excellent abuse tolerance, such as electric vehicle batteries.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsinfo:eu-repo/semantics/embargoedAccessen_US
dc.subjectSuperlattice Electrodeen_US
dc.subjectSi Based Thin Filmen_US
dc.subjectMo and Cuen_US
dc.subjectLithium-Ion Batteryen_US
dc.subjectMagnetron Sputteringen_US
dc.titleSuperlattice-structured films by magnetron sputtering as new era electrodes for advanced lithium-ion batteriesen_US
dc.typearticleen_US
dc.relation.journalNano Energyen_US
dc.departmentİstanbul Medipol Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, İnşaat Mühendisliği Bölümüen_US
dc.identifier.volume76en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1016/j.nanoen.2020.105094en_US


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