▎ 摘 要
NOVELTY - Preparing an all-solid-state zinc/sulfur battery involves preparing zirconium oxide (ZrO2) doped potassium hydroxide (KOH) powder by mixing tetrabutyl zirconate and absolute ethanol at a molar ratio of 1:10, stirring at room temperature for 30 minutes, then adding KOH solid and deionized water to the above mixed solution. The mixture is stirred for 1.5 hours, controlled the molar ratio of tetrabutyl zirconate, water, ethanol and KOH to 1:3:10:1. The mixture is kept at 600 degrees C for 14 days until a powdery solid is formed, and heated the solid at 8000 degrees C for 5 hours to obtain potassium hydroxide-zirconium oxide (KOH-ZrO2) solid powder. The obtained KOH-ZrO2 solid powder is pressed into a disk shape at room temperature. The zinc powder, conductive carbon black and KOH-ZrO2 solid powder are mixed, then added absolute ethanol, and stirred the mixture into a uniform dispersion. The dispersion is coated on both sides of the stainless steel mesh and dried at room temperature. USE - The method is useful for manufacturing full-solid zinc/sulfur battery. ADVANTAGE - The method enables preparing the full-solid zinc/sulfur battery with simple structure, better stability and wide application range. DETAILED DESCRIPTION - Preparing an all-solid-state zinc/sulfur battery involves preparing zirconium oxide (ZrO2) doped potassium hydroxide (KOH) powder by mixing tetrabutyl zirconate and absolute ethanol at a molar ratio of 1:10, stirrring at room temperature for 30 minutes, then adding KOH solid and deionized water to the above mixed solution. The mixture is stirred for 1.5 hours, controlled the molar ratio of tetrabutyl zirconate, water, ethanol and KOH to 1:3:10:1. The mixture is kept at 600 degrees C for 14 days until a powdery solid is formed, and heated the solid at 8000 degrees C for 5 hours to obtain potassium hydroxide-zirconium oxide (KOH-ZrO2) solid powder. The obtained KOH-ZrO2 solid powder is pressed into a disk shape at room temperature. The zinc powder, conductive carbon black and KOH-ZrO2 solid powder are mixed, then added absolute ethanol, and stirred the mixture into a uniform dispersion. The dispersion is coated on both sides of the stainless steel mesh and dried at room temperature, then pressed into a round shape at room temperature. The ratio of the zinc powder, conductive carbon black, KOH-ZrO2 solid powder and absolute ethanol is 0.5-1.5g:0.5-1.5g:(0-12g):(20-60mL). The sulfur powder is added into a carbon disulfide solvent and ultrasonically dispersed to form a uniform solution. The graphene particles are added to the solution and continue ultrasonic dispersion to form a uniform dispersion. The dispersion is coated on the surface of the carbon paper and dried at room temperature to form a sulfur/graphene/carbon paper composite. The ratio of the sulfur powder, carbon disulfide solvent and graphene particles is 0.5-1.5mg:0.5-1.5mL:(10-50mg). The aniline monomer is dissolved in 1mol.L-1 hydrogen chloride (HCl) solution and recorded as the aniline solution. The ratio of the aniline to 1mol.L-1 HCl solution is 0.1-0.5mL:9-35mL. The ammonium persulfate is dissolved in 1mol.L-1 HCl solution and recorded as ammonium persulfate solution. The ratio of ammonium persulfate to 1mol.L-1 HCl solution is 0.3-1.5g:9-35mL. The aniline solution and the ammonium persulfate solution are mixed uniformly, and then the above-mentioned sulfur/graphene/carbon paper composite is suspended in the mixed solution, and after standing at room temperature for a certain period of time, taking out the composite, fully immersed in a large amount of pure water and ethanol, and dried under vacuum at 40 degrees C to obtain a sulfur/graphene/carbon paper/polyaniline composite. The above-mentioned sulfur/graphene/carbon paper/polyaniline composite is heated to 1550 degrees C and kept for a certain period of time, then cooled it to room temperature, and taken out to form a sulfur positive electrode sheet. The above-mentioned zinc negative electrode sheet, KOH-ZrO2 solid electrolyte sheet and sulfur positive electrode sheet are sequentially pressed into moldings to manufacture all-solid zinc/sulfur batteries.