Conductive aerogel fiber as well as preparation method and application thereof

The invention provides a conductive aerogel fiber and a preparation method and application thereof, and the preparation method comprises the following steps: carrying out wet spinning, supercritical drying and chemical metal plating on an aramid nanofiber dispersion liquid to obtain the conductive aerogel fiber, the wet spinning comprises the following steps: extruding the aramid nanofiber dispersion liquid through a spinning nozzle to form a fibrous shape, and carrying out coagulating bath to obtain the gel fiber. The conductive aerogel fiber provided by the invention has excellent heat insulation and warm keeping effects and good flexibility, after the conductive silver adhesive is connected with a power supply, the conductive aerogel fiber can generate an electric heating effect by externally applying 5V current, and the conductive aerogel fiber can be used for warm keeping and protection in extremely cold weather. 本发明提供一种导电气凝胶纤维及其制备方法和应用，所述制备方法包括如下步骤：将芳纶纳米纤维分散液通过湿法纺丝，超临界干燥，化学镀金属，得到所述导电气凝胶纤维；所述湿法纺丝包括将芳纶纳米纤