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    Modification of SnO2 Anodes by Atomic Layer Deposition for High Performance Lithium Ion Batteries

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    Name:
    Master Thesis Nulati.pdf
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    2.132Mb
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    PDF
    Description:
    Master thesis Nulati Yesibolati
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    Type
    Thesis
    Authors
    Yesibolati, Nulati
    Advisors
    Alshareef, Husam N. cc
    Committee members
    Bakr, Osman cc
    Traversa, Enrico cc
    Program
    Material Science and Engineering
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2013-05
    Embargo End Date
    2014-05-24
    Permanent link to this record
    http://hdl.handle.net/10754/293662
    
    Metadata
    Show full item record
    Access Restrictions
    At the time of archiving, the student author of this thesis opted to temporarily restrict access to it. The full text of this thesis became available to the public after the expiration of the embargo on 2014-05-24.
    Abstract
    Tin dioxide (SnO2) is considered one of the most promising anode materials for Lithium ion batteries (LIBs), due to its large theoretical capacity and natural abundance. However, its low electronic/ionic conductivities, large volume change during lithiation/delithiation and agglomeration prevent it from further commercial applications. In this thesis, we investigate modified SnO2 as a high energy density anode material for LIBs. Specifically two approaches are presented to improve battery performances. Firstly, SnO2 electrochemical performances were improved by surface modification using Atomic Layer Deposition (ALD). Ultrathin Al2O3 or HfO2 were coated on SnO2 electrodes. It was found that electrochemical performances had been enhanced after ALD deposition. In a second approach, we implemented a layer-by-layer (LBL) assembled graphene/carbon-coated hollow SnO2 spheres as anode material for LIBs. Our results indicated that the LBL assembled electrodes had high reversible lithium storage capacities even at high current densities. These superior electrochemical performances are attributed to the enhanced electronic conductivity and effective lithium diffusion, because of the interconnected graphene/carbon networks among nanoparticles of the hollow SnO2 spheres.
    Citation
    Yesibolati, N. (2013). Modification of SnO2 Anodes by Atomic Layer Deposition for High Performance Lithium Ion Batteries. KAUST Research Repository. https://doi.org/10.25781/KAUST-31P1Y
    DOI
    10.25781/KAUST-31P1Y
    ae974a485f413a2113503eed53cd6c53
    10.25781/KAUST-31P1Y
    Scopus Count
    Collections
    Theses; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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