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Application of NPC/FeCo@NCNT as air cathode in ASS‐ZABs. a) schematic illustration, b) open‐circuit voltage, c) discharge polarization curves and power density, d) galvanostatic discharge and charge cycling curves at 1 mA cm−2, e) discharge/charge curves of NPC/FeCo@NCNT‐based ASS‐ZAB under different bending states, and f) digital images with open‐circuit potential of the batteries at flat and folded states.
