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    Silicon-conductive nanopaper for Li-ion batteries

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    Type
    Article
    Authors
    Hu, Liangbing
    Liu, Nian
    Eskilsson, Martin
    Zheng, Guangyuan
    McDonough, James
    Wågberg, Lars
    Cui, Yi cc
    KAUST Grant Number
    KUS-l1-001-12
    Date
    2013-01
    Permanent link to this record
    http://hdl.handle.net/10754/599616
    
    Metadata
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    Abstract
    There is an increasing interest in the development of thin, flexible energy storage devices for new applications. For large scale and low cost devices, structures with the use of earth abundant materials are attractive. In this study, we fabricated flexible and conductive nanopaper aerogels with incorporated carbon nanotubes (CNT). Such conductive nanopaper is made from aqueous dispersions with dispersed CNT and cellulose nanofibers. Such aerogels are highly porous with open channels that allow the deposition of a thin-layer of silicon through a plasma-enhanced CVD (PECVD) method. Meanwhile, the open channels also allow for an excellent ion accessibility to the surface of silicon. We demonstrated that such lightweight and flexible Si-conductive nanopaper structure performs well as Li-ion battery anodes. A stable capacity of 1200. mA. h/g for 100 cycles in half-cells is achieved. Such flexible anodes based on earth abundant materials and aqueous dispersions could potentially open new opportunities for low-cost energy devices, and potentially can be applied for large-scale energy storage. © 2012 Elsevier Ltd.
    Citation
    Hu L, Liu N, Eskilsson M, Zheng G, McDonough J, et al. (2013) Silicon-conductive nanopaper for Li-ion batteries. Nano Energy 2: 138–145. Available: http://dx.doi.org/10.1016/j.nanoen.2012.08.008.
    Sponsors
    We acknowledge support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-l1-001-12). We appreciate Erik Garnett's help on the PECVD Si deposition. GZ acknowledges financial support from Agency for Science, Technology and Research (A*STAR). ME and LW acknowledge The Knut and Alice Wallenberg Research Foundation for financial support.
    Publisher
    Elsevier BV
    Journal
    Nano Energy
    DOI
    10.1016/j.nanoen.2012.08.008
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.nanoen.2012.08.008
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