Abstract
The selection and optimization of cathode materials are crucial for enhancing the performance of aqueous zinc‐ion batteries. In this work, different active materials were created by combining sulphur powder and polydopamine in four different mass ratios. The novel N‐doped carbon/WS2 is obtained. Thanks to the optimization of the dopamine‐carrying tungsten ion precursor and sulfur powder (1:2, 1:4, 1:6 and 1:8), the four samples exhibited diffenert morphology. The N‐C/WS2‐6‐based zinc ion batteries with the highest specific capacity, 120.0 mAh/g in the first discharge at 2.0 A/g, and 78.0 mAh/g after 2500 cycles, with a capacity retention of 65%, had a relatively good overall performance, according to the results. The reaction kinetics characteristics of the N‐C/WS2‐6 cathode reveal that enhanced pseudocapacitive behavior facilitates the diffusion of Zn2+
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