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    Flexible, Flame-Resistant, and Dendrite-Impermeable Gel-Polymer Electrolyte for Li�O<inf>2</inf>/Air Batteries Workable Under Hurdle Conditions

    Access Status
    Fulltext not available
    Authors
    Zou, X.
    Lu, Q.
    Zhong, Y.
    Liao, K.
    Zhou, W.
    Shao, Zongping
    Date
    2018
    Type
    Journal Article
    
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    Citation
    Zou, X. and Lu, Q. and Zhong, Y. and Liao, K. and Zhou, W. and Shao, Z. 2018. Flexible, Flame-Resistant, and Dendrite-Impermeable Gel-Polymer Electrolyte for Li�O<inf>2</inf>/Air Batteries Workable Under Hurdle Conditions. Small. 14 (34).
    Source Title
    Small
    DOI
    10.1002/smll.201801798
    ISSN
    1613-6810
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/71687
    Collection
    • Curtin Research Publications
    Abstract

    © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Gel-polymer electrolytes are considered as a promising candidate for replacing the liquid electrolytes to address the safety concerns in Li–O2/air batteries. In this work, by taking advantage of the hydrogen bond between thermoplastic polyurethane and aerogel SiO2in gel polymer, a highly crosslinked quasi-solid electrolyte (FST-GPE) with multifeatures of high ionic conductivity, high mechanical flexibility, favorable flame resistance, and excellent Li dendrite impermeability is developed. The resulting gel-polymer Li–O2/air batteries possess high reaction kinetics and stabilities due to the unique electrode–electrolyte interface and fast O2diffusion in cathode, which can achieve up to 250 discharge–charge cycles (over 1000 h) in oxygen gas. Under ambient air atmosphere, excellent performances are observed for coin-type cells over 20 days and for prototype cells working under extreme bending conditions. Moreover, the FST-GPE electrolyte also exhibits durability to protect against fire, dendritic Li, and H2O attack, demonstrating great potential for the design of practical Li–O2/air batteries.

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