Ion Selective Bifunctional Metal–Organic Framework-Based Membrane for Lithium Metal-Based Nonaqueous Redox Flow Battery
نویسندگان
چکیده
Nonaqueous redox flow batteries (NARFBs) hold potential application as an electricity energy storage for intermittent renewable and can operate with high voltage density. However, their further development is impeded by lack of a proper membrane. Herein, flexible freestanding anionic metal–organic framework (MOF)-based membrane prepared through solution casting method, MOF (UiO-66-SO3Li) polyvinylidene fluoride. The shows impressive ionic selectivity (37.6) Li+ to N-(ferrocenylmethyl)-N,N-dimethyl-N-ethylammonium (Fc1N112+) ions conductivity. Benefiting from the unique micropore structure transport channels across membrane, resultant Li-based hybrid NARFB delivers high-capacity retention (99.95% per cycle) over 500 cycles well-assembled stable interphase after long time lithium plating/stripping, which decreases efficiency during cycling. Calculations reveal that easily desolvates in before Li deposition occurs, suppresses parasitic reaction accelerates uniform deposition. This work provides viable method design bifunctional membranes achieve ion sieving exchange functions.
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ژورنال
عنوان ژورنال: ACS applied energy materials
سال: 2022
ISSN: ['2574-0962']
DOI: https://doi.org/10.1021/acsaem.2c03324