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a) Schematic illustration of the preparation of Ni3S4/NG composite. b) Comparison of discharge capacities of Ni3S4, Ni3S4/NG, Ni3S4/NG‐250 °C and NiS1.03/NG‐350 °C at 0.2C in the range of 0‐3 V vs. Li/Li+. c) Nyquist plots for Ni3S4, Ni3S4/NG, Ni3S4/NG‐250 °C and NiS1.03/NG‐350 °C in the range of 100 kHz to 10 mHz. Reproduced with permission.95
