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    A Flexible Carbon/Sulfur-Cellulose Core-Shell Structure for Advanced Lithium–Sulfur Batteries

    Author
    Li, Lu; Hou, Lijuan; Cheng, Jie; Simmons, Trevor; Zhang, Fuming; Zhang, Lucy T.; Linhardt, Robert J.; Koratkar, Nikhil
    ORCID
    https://orcid.org/0000-0003-2219-5833
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    Other Contributors
    Date Issued
    2018-11-01
    Subject
    Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
    Degree
    Terms of Use
    In Copyright : this Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). https://rightsstatements.org/page/InC/1.0/;
    Full Citation
    A Flexible Carbon/Sulfur-Cellulose Core-Shell Structure for Advanced Lithium–Sulfur Batteries, L. Li, L. Hou, J. Cheng, T. J. Simmons, F. Zhang, L. Zhang, R. J. Linhardt, N. Koratkar, Energy Storage Materials, 15, 388–395, 2018.
    Metadata
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    URI
    https://doi.org/10.1016/j.ensm.2018.08.019; https://hdl.handle.net/20.500.13015/5576
    Abstract
    Lithium sulfur (Li-S) batteries are viewed as a promising candidate for next-generation energy storage systems due to their high energy density, low cost and ease of manufacturing. However, rapid capacity decay caused by lithium polysulfide shuttle during charging/discharging processes hinder its practical application. In this work, we demonstrate a cellulose encapsulated carbon/sulfur core-shell structure for advanced Li-S batteries based on electrostatic spinning with coaxial spinnerets. Cellulose serves as an excellent “shell” due to its good ion conductivity, flexible structure to accommodate volumetric expansion of sulfur, and strong capability to prevent sulfur and its intermediate reaction products from dissolving into the electrolyte. CMK-3 mesoporous carbon in the core is helpful to confine sulfur in the pores, and improve the electrical conductivity of the fiber electrode together with the carbon black particles on the outside of the fiber. As a result, the obtained cellulose based flexible sulfur electrode delivers a high initial discharge capacity (>1200 mA h g−1), good electrochemical performance with Coulombic efficiency above 99%, and a low capacity decay rate of ~ 0.12% per cycle over 300 charging/discharging cycles.;
    Description
    Energy Storage Materials, 15, 388–395; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
    Department
    The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
    Relationships
    The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; Energy Storage Materials; https://harc.rpi.edu/;
    Access
    https://login.libproxy.rpi.edu/login?url=https://doi.org/10.1016/j.ensm.2018.08.019;
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