TRIFLUOROMETHANESULFONAMIDE With CAS 421-85-2
Trifluoromethanesulfonamide is an organic intermediate, which can be prepared by the reaction of trifluoromethanesulfonyl chloride and ammonia gas. Trifluoromethanesulfonyl can be used to prepare LiTFSI. LiTFSI is an excellent organic electrolyte additive for lithium batteries. Because of the special chemical structure of the anion part (CF3SO2)2N-, LiTFSI has high electrochemical stability and electrical conductivity; Compared with LiClO4 and LiPF6, LiTFSI as electrolyte additive can: 1) improve the SEI film of positive and negative electrodes; 2) stabilize the interface of positive and negative electrodes; 3) inhibit gas generation; 4) improve cycle performance; 5) improve high temperature stability ; 6) Improve storage performance and other advantages.
| Item |
Standard |
| Appearance |
White crystalline solid |
| Assay |
≥98% |
| Moisture |
≤0.50% |
Add 172g of 98% CF3SO2Cl (1mol) and 500mL of anhydrous acetonitrile after water treatment in a closed reactor with a thermometer, a stirrer, and nitrogen and oxygen removal. The ammonia gas or the corresponding amount of dry ammonium carbonate is gradually raised to room temperature under stirring, and the reaction is terminated after 3 hours of reaction. The by-product ammonium chloride in the reaction solution was removed by filtration, the solvent in the filtrate was distilled off under reduced pressure, and dried under reduced pressure at 50°C to obtain a white wafer crude trifluoromethanesulfonamide with a yield of not less than 96% .
25kgs/drum, 9tons/20’container
25kgs/bag, 20tons/20’container
TRIFLUOROMETHANESULFONAMIDE With CAS 421-85-2
