7 results about "Flusulfamide" patented technology

The invention discloses a perfluorosulfonyl imide type proton exchange resin with a coupled multi-active center, which is obtained by grafting phosphonated polyhedral oligomeric silsesquioxane (POSS) on perfluorosulfonamide, and the specific preparation process is as follows: perfluorosulfonyl fluoride and ammonia gas react to generate perfluorosulfonamide; carrying out substitution reaction on the phosphonated POSS and triethyl phosphite to obtain an intermediate product; and carrying out Michael addition reaction on the intermediate product and perfluorosulfonylamino, and acidifying to obtain the target product. According to the perfluorosulfonyl imide type proton exchange resin with the coupled multi-element active center, the glass-transition temperature of a proton exchange membrane can be increased; meanwhile, the sulfonyl imide and the phosphonic acid group cooperatively construct a multiple proton transmission path and have rapid proton conduction capability, so that the proton exchange membrane can ensure rapid proton transmission even at a high temperature, the conductivity of the proton exchange membrane is improved, and the problem that a perfluorosulfonic acid proton exchange membrane in the prior art is relatively poor in performance under a high-temperature working condition is solved.

The invention provides a non-aqueous electrolyte of a lithium ion battery and the lithium ion battery, the electrolyte comprises: a first additive, the first additive comprises an isonitrile silane compound; the non-aqueous solvent at least comprises a first solvent, and the first solvent comprises a fluorosulfonamide compound; the fluorine sulfonamide compound comprises one or more of N, N-dimethyl trifluoromethanesulfonamide, 1-trifluoromethanesulfonyl-piperidine, N, N-diethyl trifluoromethanesulfonamide, N-methyl-N-ethyl trifluoromethanesulfonamide and 1-(trifluoromethanesulfonyl) pyrrolidine, and the fluorine sulfonamide compound comprises one or more of N, N-dimethyl trifluoromethanesulfonamide, 1-trifluoromethanesulfonyl-piperidine, N, N-diethyl trifluoromethanesulfonamide and 1-(trifluoromethanesulfonyl) pyrrolidine. The mass percent of the first solvent in the electrolyte is 25%-65%. Through the synergistic effect of the non-aqueous solvent and the additive, the electrolyte can form an interface phase with excellent thermal stability while maintaining high ionic conductivity, the fast charge cycle performance is remarkably improved, the thermal runaway temperature is increased, and then the unification of the fast charge performance and the thermal safety is realized.

This invention relates to the field of lithium-ion battery technology, specifically to a method for preparing a multifunctional self-healing silicon-based material binder, comprising the following steps: 1. Synthesizing and preparing 1-allyl-1-methylpyrrolidone-onium bis(fluorosulfonamide)imine ionic liquid; 2. Crosslinking reaction to generate 1-allyl-1-methylpyrrolidone-onium bis(trifluoromethanesulfonyl)imine polyionic liquid; 3. Preparing (aniline-copoly-3-aminophenylboronic acid) / fluorinated polyionic liquid powder, dissolving the powder in N-methylpyrrolidone solvent to obtain a self-healing silicon-based material binder liquid composite. The binder prepared by this method can simultaneously and efficiently solve the problems of conductive network destruction, particle pulverization, repeated SEI film growth, and interface impedance rise faced by silicon-based anodes during cycling, effectively improving the energy density, cycle life, and rate performance of the battery.

The invention provides a fluorosulfonamide compound and a preparation method thereof, a non-aqueous electrolyte and a sodium ion battery. The structural formula of the fluorosulfonamide compound is shown as a structural formula I, R is selected from fluorine, nitrile groups, C1-C6 alkyl groups, C2-C6 alkenyl groups, C2-C6 alkynyl groups, C1-C6 fluoroalkyl groups, C2-C6 fluoroalkenyl groups, C2-C6 fluoroalkynyl groups, C1-C3 alkane sulfenyl groups or C1-C3 fluoroalkane sulfenyl groups, and n is selected from a positive integer from 1 to 3. The fluorosulfonamide compound has relatively high stability at high temperature and high pressure, has fluorosulfonamide and nitrogen heterocyclic ring structures, and can form a solid electrolyte interface film (SEI film) with extremely high chemical inertness, mechanical strength and thermal stability when being used in an electrolyte, so that a battery has relatively good high-temperature cycle performance and safety performance. Structural formula I

The invention belongs to the technical field of bactericides, and particularly relates to a bactericide for preventing and treating diseases of a food crop field. The invention relates to a bactericide, wherein the active component of the bactericide is prepared by compounding vanillyl thiodithioether and tebuconazole or benzovindiflupyr according to the mass ratio of (1-150): (150-1). The active ingredients of the bactericide are formed by compounding vanillyl thiodithiolate and tebuconazole or benzovindiflupyr, and the compounded combinations have a synergistic effect on pathogenic bacteria causing diseases of the food crop field, so that the prevention and treatment effect on the diseases of the food crop field can be improved, the dosage can be reduced, the prevention and treatment cost can be reduced, and the bactericide has a good application prospect in prevention and treatment of the diseases of the food crop field. The development speed of drug resistance of pathogenic bacteria is delayed, and the composition is of great significance to development of bactericides with synergistic effects on diseases of food crop fields.

The application discloses a preparation method of N,N-disubstituted fluorosulfamide, and belongs to the technical field of fine synthesis of fluorine-containing organic compounds, and comprises the following steps: under the protection of nitrogen, sulfuryl chloride fluoride is dissolved in an aprotic solvent, reacts with a secondary amine under the action of an alkaline acid-binding agent, and N,N-disubstituted fluorosulfamide product is obtained; the application utilizes the characteristics that the sulfur-chlorine bond in the sulfuryl chloride fluoride is relatively active, so that the sulfuryl chloride fluoride can react with the secondary amine with high selectivity; under the protection of nitrogen, an aprotic solvent is used as a reaction medium, and the target product N,N-disubstituted fluorosulfamide is generated in the presence of an alkaline acid-binding agent; the method has the characteristics of high reaction yield, high product purity, safe and efficient operation, and suitability for large-scale production.