Lithium bis(trifluoromethanesulphonyl)imide CAS 90076-65-6
Introduction to Lithium Bis(trifluoromethanesulphonyl)imide (LiTFSI)
Lithium bis(trifluoromethanesulphonyl)imide (LiTFSI) is a high-performance lithium salt widely used in various electrochemical applications due to its excellent thermal stability, high ionic conductivity, and electrochemical stability.
| Property | Value |
|---|---|
| CAS Number | 90076-65-6 |
| Chemical Formula | C2F6LiNO4S2 |
| Molecular Weight | 287.09 g/mol |
| Appearance | White hygroscopic powder |
| Melting Point | 234-238°C (lit.) |
| Boiling Point | 190.5°C at 760 mmHg |
| Flash Point | 69°C |
| Purity | ≥99.9% |
| Water Content | ≤100 ppm |
| Application | Intermediate in organic syntheses |
| Packaging | Up to kgs |
Properties and Applications
Chemical Properties
LiTFSI is a hydrophilic organic salt with excellent solubility in water and various organic solvents. It has a high melting point of 234-238°C and a boiling point of 190.5°C at 760 mmHg. Its hygroscopic nature makes it highly effective in ion transport, enhancing the overall electrochemical properties of batteries.
Applications
Lithium-ion Batteries:LiTFSI is commonly used as an electrolyte salt in lithium-ion batteries due to its high ionic conductivity and electrochemical stability. It helps improve the battery's performance, safety, and lifespan.
Perovskite Solar Cells:It is used as a p-dopant to enhance the conductivity and hole mobility of Spiro-OMeTAD in perovskite solar cells.
Organic Synthesis:LiTFSI serves as an intermediate in organic syntheses and the preparation of chiral imidazolium salts.
Safety and Handling
LiTFSI is non-flammable and exhibits high thermal stability, with thermal degradation beginning above 320°C. However, it is hygroscopic and should be stored in a dry environment to prevent moisture absorption. Proper handling and storage are essential to maintain its purity and performance.
Conclusion
Lithium bis(trifluoromethanesulphonyl)imide (LiTFSI) is a versatile and high-performance compound with a wide range of applications in electrochemical systems. Its excellent thermal stability, high ionic conductivity, and electrochemical stability make it an ideal choice for advanced energy storage devices and organic syntheses. Whether you are developing new battery technologies or working on organic synthesis projects, LiTFSI offers a reliable and efficient solution.
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