Sulfurized−poly(acrylonitrile) composite cathode materials provide high specific capacity, deprive the dissolution of polysulfides and shuttling effect. However, these materials have intrinsic problems such as low sulfur loading and poor rate capability at high C−rate due to the moderate conductivity of the composites. Here, we synthesize a wrapped S/[email protected] composite using a dissolution−reprecipitation method followed by the thermal treatment. The idea is that the dissolution−reprecipitation of [email protected] augments the surface area of the composite, which provides high sulfur loading and improves the composite−electrolyte contact, and conductivity of cathode material. As a result, the electrochemical performance of the as−fabricated S/[email protected] cathode material yields excellent cyclability and high rate capability of 492 mAh g⁻¹ even at a high C−rate (10 C) with high sulfur loading (54.5%).

硫化聚（丙烯腈）复合阴极材料提供高比容量，剥夺了聚硫化物的溶解和穿梭效应。然而，由于复合材料的适度导电性，这些材料具有内在的问题，例如低硫负载和高C速率下较差的速率能力。在这里，我们使用溶解-再沉淀方法接着进行热处理来合成包裹的S / [受电子邮件保护的]复合材料。这个想法是[受电子邮件保护的]的溶解-再沉淀增加了复合材料的表面积，从而提供了高的硫负载并改善了复合材料与电解质的接触以及阴极材料的电导率。因此，即使在高C速率（10 C）和高硫负荷（54.5％）的情况下，也为^-1。