Preparation method of supramolecular ionic liquid gel electrolyte and application of supramolecular ionic liquid gel electrolyte in sodium-ion battery

• Main Authors: CHEN SHIPENG, WANG HONGXING, WANG HUIFENG, XUE BAOYU, FAN YANGE, CAO CHANGQING
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a preparation method of a supramolecular ionic liquid gel electrolyte and application of the supramolecular ionic liquid gel electrolyte in a sodium-ion battery, at room temperature, 2, 4-(3, 4-dichlorobenzylidene)-D-methyl gluconate, a catalyst, a solvent and organic diamines are added into a container for reaction, and a product is separated out after the reaction is completed; and recrystallizing the product by using methanol/water, further reacting with alkyl isocyanate in anhydrous DMSO, pouring into a large amount of water after the reaction is completed, separating out the product, and recrystallizing the obtained product by using methanol and water to obtain the final gel. And heating and mixing the gelling agent, N-butyl-N-methylpyrrolidine bis (trifluoromethanesulfonyl) imine salt and bis (trifluoromethanesulfonyl) sodium imine, and cooling to room temperature to obtain the supramolecular ionic liquid gel electrolyte. The supramolecular ionic liquid gel electrolyte prepared b