Lithium bis(nonafluorobutanesulfonyl)imide, CAS: 119229-99-1

Key Applications:

Electrolytes for Energy Storage

• Used as a conducting salt in non-aqueous lithium-ion battery electrolytes, particularly where enhanced oxidative stability and low moisture sensitivity are required.
• Supports high-voltage cathode chemistries due to its wide electrochemical window and thermal robustness.
• Employed in gel polymer electrolytes and solid–liquid hybrid electrolytes, improving ionic conductivity and interfacial stability.
• Serves as an additive to suppress aluminum current collector corrosion and stabilize SEI formation.

Ionic Liquid and Solvent Systems

• Dissolves readily in fluorinated and aprotic solvents, enabling formulation of task-specific ionic liquids with high conductivity and low viscosity.
• Used to tune transport properties, hydrophobicity, and thermal stability in ionic liquid-based electrolytes for batteries, supercapacitors, and electrochemical devices.

Electrochemical Devices Beyond Batteries

• Applied in electrochromic devices, where its high ionic mobility supports rapid switching performance.
• Utilized in capacitive energy storage and dielectric materials requiring salts with low coordinating strength and high chemical stability.

Specialty Polymer and Materials Processing

• Incorporated into ionically conductive polymers to enhance lithium transport in membranes and films.
• Used in fluoropolymer processing where compatibility with highly fluorinated matrices is essential.
• Supports development of high-performance elastomers and ionogels with improved mechanical and electrochemical properties.

Catalysis and Synthesis

• Functions as a non-coordinating lithium source in organometallic and catalytic transformations where minimal anion interference is required.
• Employed in fluorinated reaction media to stabilize reactive intermediates and improve selectivity.

Analytical and Research Applications

• Serves as a reference salt for studying ion–solvent interactions, anion hydrophobicity, and transport phenomena in fluorinated systems.
• Used in spectroscopic and electrochemical benchmarking due to its well-defined ion-pairing behavior.

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