Bipolar membranes are emerging as an enabling component in numerous energy-relevant electrochemical devices, but a greater understanding of how they operate in complex electrolytes is needed. Research now reveals that ionic species in mixed-ion electrolytes can block the heart of the membrane, the bipolar junction, hampering its performance.
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Oener, S.Z. Ions block up the junction. Nat Energy 8, 1313–1314 (2023). https://doi.org/10.1038/s41560-023-01410-9
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DOI: https://doi.org/10.1038/s41560-023-01410-9