A low-potential lithium-biphenyl anolyte for high-performance nonaqueous redox flow batteries with a metal–organic-framework-based separator
Abstract
A Li-biphenyl (BP) anolyte is adopted in a 2.7 V Li-BP–LiI3 nonaqueous redox flow battery (NRFB). The Fe–N–C MOF separator mitigates cross-contamination and enhances LiI3 reduction, as confirmed by DFT. The NRFB exhibits 80 Ah L−1 capacity and 96% retention over 100 cycles, offering a pathway for achieving high-voltage and high-stability.

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