Lithium bis(trifluoromethylsulfonyl)imide, CAS: 90076-65-6

Key Applications:

• Lithium‑Ion Batteries – LiTFSI is a key electrolyte salt in liquid and solid electrolytes, offering excellent thermal and electrochemical stability compared to LiPF₆.
• Solid‑State Electrolytes – Used in polymer and ceramic electrolytes, where its large, delocalized anion reduces crystallinity and enhances ionic conductivity.
• Polymer Electrolytes – Incorporated into PEO‑based polymer electrolytes, improving lithium ion transport and mechanical stability for flexible energy devices.
• Supercapacitors – Applied as an electrolyte component in high‑power energy storage systems, leveraging its stability and ionic mobility.
• Electrochemical Research – Studied for ionic conductivity, viscosity, and solvation properties, making it a benchmark salt in thermophysical property investigations.
• Catalysis & Synthesis – Used in anion metathesis reactions to prepare ionic liquids and chiral imidazolium salts.
• Hydrogen Bonding & Solvent Systems – Its weakly coordinating TFSI⁻ anion minimizes ion pairing, enabling stable hydrogen bonding networks in mixed solvents and ionic liquid systems.
• Gas Absorption & Separation – Explored in CO₂ capture studies, where LiTFSI‑based ionic liquids enhance absorption capacity.

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