1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, CAS: 174899-82-2

Key Applications:

Energy Storage: Batteries, Supercapacitors & Fuel Cells

• High‑stability electrolyte component for Li‑ion, Na‑ion, Mg‑ion, dual‑ion, and high‑voltage batteries
• Ionic liquid medium for supercapacitors (supercaps) requiring wide potential windows and low volatility
• Co‑solvent or additive in proton‑exchange and solid‑oxide fuel cells, improving ionic conductivity and durability
• Supports metal electrodeposition and interfacial‑kinetics studies in advanced battery chemistries

Dye‑Sensitized Solar Cells (DSSCs) & Optoelectronics

• Widely used electrolyte component in DSSCs, enabling stable I⁻/I₃⁻ redox shuttles
• Enhances charge transport, dye regeneration, and long‑term device stability
• Useful in tuning diffusion coefficients, viscosity, and interfacial recombination behavior
• Supports development of electrochromic devices and ion‑conducting optoelectronic films

Electrochemistry & Charge‑Transport Studies

• Benchmark ionic liquid for diffusion, ion mobility, and transport‑property measurements
• Solvent for redox chemistry, electrosynthesis, and electrode‑surface studies
• Medium for high‑temperature electrochemical systems requiring non‑volatile, thermally stable electrolytes

Extraction, Separation & Analytics

• Effective extractant for metal ions, organic molecules, and halogenated species in biphasic systems
• Supports liquid–liquid extraction, ion‑pairing separations, and hydrophobic partitioning studies
• Employed in analytical chemistry as an ion‑pairing agent, solvent, or electrolyte for electroanalytical methods
• Useful in chromatography method development where low‑volatility ionic media are required

Biomass Conversion & Green Chemistry

• Reaction medium for biomass dissolution, depolymerization, and catalytic upgrading
• Compatible with cellulose, lignin, and carbohydrate processing under mild or high‑temperature conditions
• Enables greener reaction pathways by replacing volatile organic solvents

Materials Science, Sensors & Soft‑Matter Interfaces

• Additive in ionogels, polymer electrolytes, and conductive soft materials
• Enhances sensitivity and stability in electrochemical sensors and flexible electronics
• Template or dispersant in nanoparticle synthesis, carbon materials, and hybrid composites
• Lubricant component for low‑friction, high‑load tribological systems

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