Bis(Trifluoromethane)Sulfonimide Lithium 90076-65-6 CF₃SO₂NLiSO₂CF₃

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   LiTFSI Uses  

Lithium bis(trifluoromethane)sulfonimide (LiTFSI) is a widely used lithium salt with various applications, especially in fields like battery technology, electrochemistry, and synthetic chemistry. Some of its primary uses include:

1. Electrolyte in Lithium-Ion Batteries
    LiTFSI is commonly used as an electrolyte salt in lithium-ion batteries and solid-state batteries due to its high ionic conductivity, stability, and low viscosity. It contributes to the formation of stable electrolyte solutions, improving the performance and safety of these batteries.

2. Supercapacitors and Energy Storage
    LiTFSI is used in supercapacitors and other energy storage devices where stable ionic conduction and high capacity are required. It helps to enhance the efficiency and longevity of such devices.

3. Lithium Salt in Organic Electrolytes
    In electrochemical applications, LiTFSI is often used as a lithium salt in organic electrolytes for devices like electrochemical capacitors and high-performance batteries. It offers superior electrochemical stability compared to other salts, such as LiPF₆.

4. Solvent Systems for Li-ion Conductivity
    LiTFSI is also employed in solvent systems to facilitate lithium-ion conductivity, often combined with solvents like ethylene carbonate or diethyl carbonate to improve performance in various energy storage devices.

5. Synthesis of Lithium-Based Catalysts
    LiTFSI can be used as a precursor in the synthesis of lithium-based catalysts in various organic reactions, such as in nucleophilic substitution or cross-coupling reactions. Its unique structure can help stabilize reactive intermediates during these reactions.

6. Electrochemical Synthesis
    LiTFSI has been explored in electrochemical synthesis due to its high electrochemical stability, which makes it suitable for applications involving electrolytic processes.

7. Conductive Polymers
    LiTFSI is often incorporated into conductive polymer films for use in a variety of electronic devices, offering enhanced conductivity and stability in flexible electronics.

8. Ionic Liquids
    LiTFSI is a common component in the synthesis of ionic liquids, which are used in applications ranging from electrochemical systems to separation processes. The ion pair in LiTFSI has favorable properties for creating low-viscosity ionic liquids with high ionic conductance.

9. Solid-State Electrolytes
    LiTFSI is used in the development of solid-state electrolytes for lithium-based batteries, helping to improve the ionic conductivity and stability of solid-state devices, which are seen as the next generation of battery technologies.

10. Ion-Selective Membranes
     In combination with other materials, LiTFSI is sometimes used in ion-selective membranes for applications like ion separation or desalination, benefiting from its ability to facilitate high ionic conductivity.

11. Electrolyte in Dye-Sensitized Solar Cells (DSSCs)
     LiTFSI is also used as an electrolyte component in dye-sensitized solar cells (DSSCs), where its high ionic conductivity enhances the efficiency of the electron transfer in the device.

12. Reactions Involving Lithium
     Due to its stability and solubility in various solvents, LiTFSI is sometimes used in organic reactions where lithium ions are required to facilitate the transformation, such as in dehydrohalogenation, Grignard reagent formation, or organometallic reactions.

Due to its unique properties, Lithium bis(trifluoromethylsulfonyl)imide (LiTFSI) has gained significant importance in advanced energy storage technologies, such as high-performance non-aqueous electrolytes for secondary lithium batteries and supercapacitors, as well as in clean energy devices like aluminum electrolytic capacitors. It is widely used as a lithium salt in organic electrolytes for lithium batteries and plays a key role in high-end applications such as antistatic agents for liquid crystal displays (LCD, LED, OLED), and other electrostatic protection systems. Additionally, LiTFSI is a valuable reagent in the synthesis of functional materials and high-efficiency catalysts, further highlighting its versatility and industrial significance in modern chemistry and technology.