The high dispersibility of single-walled carbon nanotubes (SWCNTs) in supporting media is a challenge for maximizing the mechanical and electrical properties of SWCNT-based composite materials. Herein, we demonstrate that highly concentrated lithium-salt electrolytes (HCEs) can disperse SWCNTs without using any other dispersing agents. Incorporating SWCNT-dispersed HCEs into a polymer matrix allows the fabrication of mechanically stable, electronically and ionically (Li⁺) conductive composite gels. Due to its high electronic conductivity and good dispersion of the electrolyte, the SWCNT/HCE composite gel is a promising electrode material for energy storage devices. As a demonstration, the composite gel is applied as a gel cathode for a Li-sulfur battery by incorporating molecular sulfur into the gel, resulting in stable cycling performance.

单壁碳纳米管（SWCNT）在支撑介质中的高分散性是最大程度地提高基于SWCNT的复合材料的机械和电气性能的挑战。在这里，我们证明了高浓度的锂盐电解质（HCE）可以分散SWCNT，而无需使用任何其他分散剂。将SWCNT分散的HCE掺入聚合物基质中，可制造出机械稳定的，电子和离子性（Li ⁺）导电复合凝胶。由于其高的电子导电性和良好的电解质分散性，SWCNT / HCE复合凝胶是用于储能设备的有前途的电极材料。作为演示，通过将分子硫掺入到凝胶中，复合凝胶被用作锂硫电池的凝胶阴极，从而获得稳定的循环性能。