CAS NO:15587-24-3 F2NaO2P/Sodium Difluoride Phosphate

The optimal addition amount of F2NaO2Pin sodium battery electrolyte is usually 0.5% - 2%. When added directly by dissolving in the electrolyte, excessive addition will increase the internal resistance and reduce the ionic conductivity, resulting in a decline in the battery's rate performance and low-temperature performance.

1. Additive for sodium-ion battery electrolyte
2. Flame retardancy and material modification
3. Other industrial applications

1.Build a dense and stable SEI film to enhance the battery's cycle life
2. Suppressing side effects and gas generation, reducing the risk of battery expansion
3. Enhance the battery's adaptability to high and low temperatures and its rate performance
4. Enhance battery safety performance and compatibility with high voltages

The core competitive advantages of F2NaO2P over fluoroethylene carbonate (FEC) lie in its dual-interface collaborative stability, low addition amount with high cost-effectiveness, higher voltage compatibility and stronger anti-hydrolysis ability. At the same time, it is compatible with existing production lines, has a lower overall cost, and is more suitable for full operation conditions and large-scale applications of power/storage sodium batteries.

When F2NaO2P is combined with the mainstream additives of sodium electrolyte solution, the main effect is synergistic. Reasonable combination can achieve a performance improvement of "1 + 1 > 2". Only when combined with a few highly reducing / highly acidic additives, there is a slight antagonism. The core avoidance principle is to avoid highly acidic / highly reducing additives, control the proportion of each additive, and match the coating sequence.