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Electrochemical performance of NiHCF‐based LIB at different temperatures. a) Charge/discharge profiles with the rate of 0.05C from +25 to −70 °C. b) Comparison of rate performance. c) The variety of D Li + between room temperature and ultralow temperature of −70 °C. d) Schematic illustration of lithiation process with the synergistic effect of surface‐controlled intercalation pseudocapacitive behavior at the interface and high diffusion coefficient in the bulk electrode.
