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(a) Charge−discharge curves of S/CoMoO4@rGO, S/CoMoO4, and S/rGO cathodes at 0.1 C at −20 °C. (b) Charge−discharge curves at 0.5 C. (c) The relationship between discharge capacity and cycle number at a current density of 0.5 C. (d) The relationship between charge−discharge capacity, coulombic efficiency, and cycle number at a current density of 1 C. (e) Charge−discharge curves of S/CoMoO4@rGO cathodes at 0.1 C at −30 °C.
