Preparation method of ion liquid gel-based all-gel supercapacitor
A technology of supercapacitors and ionic liquids, applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, hybrid capacitor electrolytes, etc., can solve the problems of low energy storage of supercapacitors and no substantial breakthroughs, and achieve increased capacitance , Enhanced electron-ion conductivity and stable performance
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[0034] A preparation method for an ionic liquid gel-based all-gel supercapacitor, comprising the following steps:
[0035] 1. Preparation of gel electrode: first mix 40mg of carbon nanotubes with ionic liquid, grind them on a mortar, remove them with a hanging spoon after 20 minutes, put them into a 5ml glass bottle, and then continue to add 2.5ml of the used solvent 4-methyl-2-pentanone, dissolved at 80°C in PVDF-HFP high-temperature solution, and finally mixed with 10mg of acetylene black, and continued to stir at 80°C for 4 hours to form a high-temperature solution Viscous solution, the viscous solution will form a colloidal state after cooling down, which is a weakly physically cross-linked gel. The resulting gel is macroscopically photographed and the resulting gel is lyophilized and photographed for scanning electron microscopy, as in figure 1 , as shown in 2.
[0036] 2. Take the monomer N,N-dimethylacrylamide (DMAA) with a mass fraction of 5% to 20%, and the crosslin...
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