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(a) Cyclic voltammetry tests of S/CoMoO4@rGO, S/CoMoO4, and S/rGO cathodes at a scan rate of 0.1 mV s−1 at room temperature; (b) Nyquist plot before cycling; (c) rate performance at different current densities; (d) the relationship between discharge capacity and cycle number at a current density of 1 C; (e) the relationship between charge−discharge capacity, coulombic efficiency, and cycle number at a current density of 2 C.
