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    Electrode Protection in High-Efficiency Li–O2 Batteries

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    Type
    Article
    Authors
    Huang, Gang cc
    Wang, Jin cc
    Zhang, Xin Bo cc
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2020-11-24
    Submitted Date
    2020-08-08
    Permanent link to this record
    http://hdl.handle.net/10754/666130
    
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    Abstract
    The aprotic Li–O2 battery possessing the highest theoretical energy density, approaching that of gasoline, has been regarded as one of the most promising successors to Li-ion batteries. Before this kind of battery can become a viable technology, a series of critical issues need to be conquered, like low round-trip efficiency and short cycling lifetime, which are closely related to the continuous parasitic processes happening at the cathode and anode during cycling. With an aim to promote the practical application of Li–O2 batteries, great effort has been devoted to identify the reasons for oxygen and lithium electrodes degradation and provide guidelines to overcome them. Thus, the stability of cathode and anode has been improved a lot in the past decade, which in turn significantly boosts the electrochemical performances of Li–O2 batteries. Here, an overlook on the electrode protection in high-efficiency Li–O2 batteries is presented by providing first the challenges of electrodes facing and then the effectiveness of the existing approaches that have been proposed to alleviate these. Moreover, new battery systems and perspectives of the viable near-future strategies for rational configuration and balance of the electrodes are also pointed out. This Outlook deepens our understanding of the electrodes in Li–O2 batteries and offers opportunities for the realization of high performance and long-term durability of Li–O2 batteries.
    Citation
    Huang, G., Wang, J., & Zhang, X. (2020). Electrode Protection in High-Efficiency Li–O2 Batteries. ACS Central Science. doi:10.1021/acscentsci.0c01069
    Sponsors
    We are grateful for financial support from the National Key R&D Program of China (Grant 2019YFA0705704), the National Natural Science Foundation of China (Grant 21725103), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant XDA21010210), the Jilin Province Science and Technology Development Plan Funding Project (Grant 20180101203JC), the Changchun Science and Technology Development Plan Funding Project (Grant 19SS010), and the K. C. Wong Education Foundation (Grant GJTD-2018-09).
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS Central Science
    DOI
    10.1021/acscentsci.0c01069
    Additional Links
    https://pubs.acs.org/doi/10.1021/acscentsci.0c01069
    ae974a485f413a2113503eed53cd6c53
    10.1021/acscentsci.0c01069
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division

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