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    Protection of Lithium Anode by a Highly Porous PVDF Membrane for High-Performance Li-S Battery

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    acsaem.9b02211.pdf
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    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Li, Mengliu cc
    Li, Xiang cc
    Tung, Vincent cc
    Li, Yangxing
    Lai, Zhiping cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Engineering Program
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2020-02-04
    Online Publication Date
    2020-02-04
    Print Publication Date
    2020-03-23
    Permanent link to this record
    http://hdl.handle.net/10754/661488
    
    Metadata
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    Abstract
    The Li-S battery is considered as the next-generation energy storage solution largely because of its high energy density. However, the lithium metal anode has suffered from the “shuttle effect” of soluble polysulfide species and the formation of dendrites that cause quick performance decay and safety issues. Here, a polyvinylidene fluoride (PVDF) membrane that contains a hierarchical porous structure was introduced as a protection layer to insulate the lithium anode from polysulfide shuttling and dendrite formation. The PVDF protected Li-S battery showed a capacity of around 850 mAh g-1 and Coulombic efficiency of 98% over 200 cycles at 0.5 C. Both performances are significantly improved from the normal Li-S batteries. The PVDF membrane is stable, easy to coat, and scalable, which offers a convenient, affordable, yet effective strategy for achieving commercialization of high energy density and safe Li-S batteries.
    Citation
    Li, M., Li, X., Tung, V. C., Li, Y., & Lai, Z. (2020). Protection of Lithium Anode by a Highly Porous PVDF Membrane for High-Performance Li-S Battery. ACS Applied Energy Materials. doi:10.1021/acsaem.9b02211
    Sponsors
    The work is funded by King Abdullah University of Science and Technology competitive research grant URF/1/3435 and baseline fund BAS/1/1375.
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS Applied Energy Materials
    DOI
    10.1021/acsaem.9b02211
    Additional Links
    https://pubs.acs.org/doi/10.1021/acsaem.9b02211
    ae974a485f413a2113503eed53cd6c53
    10.1021/acsaem.9b02211
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Material Science and Engineering Program

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