▎ 摘　　要

NOVELTY - Preparing an aqueous fiber battery involves uniformly mixing electrode active material and conductive additive to form electrode, using the polymer gel material as the electrolyte, and simultaneously extruding the positive and negative electrodes and the electrolyte to form the fibers arranged in parallel to the electrodes, where the aqueous fiber battery is prepared by extrusion from a spinneret. The active material, conductive agent carbon nanotube/graphene, binder acrylonitrile copolymer/styrene butadiene rubber emulsion are mixed to obtain electrode slurry. The chitosan or sodium alginate, polyvinyl alcohol, and electrolyte salt are mixed to prepare an electrolyte slurry. The slurry and the electrolyte slurry are respectively injected into three storage tanks, and then flow into the spinneret after passing through the booster pump and the metering pump in sequence. USE - Method for preparing an aqueous fiber battery for energy storage fiber battery (claimed). ADVANTAGE - The method enables to prepare an aqueous fiber battery with good electrochemical performance, flexibility and safety performance, and provides energy for other flexible electronic devices by giving fiber electronic products higher commercial application value. DETAILED DESCRIPTION - Preparing an aqueous fiber battery involves uniformly mixing electrode active material and conductive additive to form electrode, using the polymer gel material as the electrolyte, and simultaneously extruding the positive and negative electrodes and the electrolyte to form the fibers arranged in parallel to the electrodes, where the aqueous fiber battery is prepared by extrusion from a spinneret. The active material, conductive agent carbon nanotube/graphene, binder acrylonitrile copolymer/styrene butadiene rubber emulsion are mixed to obtain electrode slurry. The chitosan or sodium alginate, polyvinyl alcohol, and electrolyte salt are mixed to prepare an electrolyte slurry. The slurry and the electrolyte slurry are respectively injected into three storage tanks, and then flow into the spinneret after passing through the booster pump and the metering pump in sequence. The spinneret is provided with a number of spinneret holes, and each spinneret hole contains three channels, with two parallel small channels in the middle for extruding positive and negative electrode slurry, and the outer layer is a large channel for extruding the electrolyte slurry. The electrode slurry and the electrolyte slurry are extruded through the spinneret into a 1-10 meter long coagulation bath containing 0.5-5mol/l sodium hydroxide and 0.5-5mol/l aqueous electrolyte salt solution. The hydroxide radicals in the coagulation bath migrate into the gel electrolyte and neutralize with the hydrogen ions to complete the solidification of the gel electrolyte. The cured fiber battery is cleaned with deionized water to remove the remaining coagulation bath components on the surface, and dried in a drying oven to remove excess water on the surface. The prepared fiber battery is collected on a roller at a speed of 0.5-10m/minute.