| Summary: | Aqueous supercapacitors have occupied a significant position among various types of stationary energy storage equipment, while their widespread application is hindered by the relatively low energy density. Herein, N/F co-doped carbon materials activated by manganese clusters (NCM) are constructed by the straightforward experimental routine. Benefiting from the elevated conductivity structure at the microscopic level, the optimized NCM-0.5 electrodes exhibited a remarkable specific capacitance of 653 F g<sup>−1</sup> at 0.4 A g<sup>−1</sup> and exceptional cycling stability (97.39% capacity retention even after 40,000 cycles at the scanning rate of 100 mV s<sup>−1</sup>) in a neutral 5 M LiCl electrolyte. Moreover, we assembled an asymmetric device pairing with a VO<sub>x</sub> anode (NCM-0.5//VO<sub>x</sub>), which delivered a durable life span of 95% capacity retention over 30,000 cycles and an impressive energy density of 77.9 Wh kg<sup>−1</sup>. This study provides inspiration for transition metal element doping engineering in high-energy storage equipment.
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