1-Ethyl-3-methylimidazolium bis(fluorosulfonyl)imide CAS 235789-75-0
Chemical Name: 1-Ethyl-3-methylimidazolium bis(fluorosulfonyl)imide
Synonyms: Methylethylimidazolium bis(fluorosulfonyl)imide
CAS No.: 235789-75-0
Molecular Formula: C6H11F2N3O4S2
Molecular Weight: 291.2960464
Appearance: Transparent liquid
1-Ethyl-3-methylimidazolium bis(fluorosulfonyl)imide (CAS 235789-75-0) Technical Guide
Table of Contents
- 1. Product Information & Specifications
- 2. Detailed Industrial Applications
- 3. Usage Scenarios & Case Studies
- 4. Performance Comparison Table
- 5. Verified Client Implementations
- 6. Technical Consultation & Quotation
1. Product Information & Specifications
| Parameter | Specification |
|---|---|
| Chemical Name | 1-Ethyl-3-methylimidazolium bis(fluorosulfonyl)imide |
| CAS Number | 235789-75-0 |
| Molecular Formula | C7H11F2N3O4S2 |
| Molecular Weight | 307.3 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Purity | ≥99.5% (HPLC) |
| Density | 1.43 g/cm³ at 20°C |
| Viscosity | 45 cP at 25°C |
| Melting Point | -8°C |
| Water Content | <100 ppm |
Performance Comparison
| Property | EMIM FSI | BMIM PF6 | EMIM TFSI |
|---|---|---|---|
| Ionic Conductivity (25°C) | 15.3 mS/cm | 8.7 mS/cm | 12.1 mS/cm |
| Thermal Stability | 380°C | 300°C | 350°C |
| Electrochemical Window | 4.5 V | 4.2 V | 4.3 V |
2. Detailed Industrial Applications
2.1 Lithium-Ion Battery Electrolytes
Enhances ionic conductivity while maintaining thermal stability in high-voltage lithium batteries (4.0-4.5V). Reduces dendrite formation compared to conventional electrolytes.
2.2 Supercapacitor Applications
Provides wide electrochemical window (up to 4.5V) for energy density improvement in dual-carbon supercapacitors.
2.3 Electrochemical Sensors
Used as stable ionic medium in gas detection sensors and biosensors due to low vapor pressure and high chemical stability.
3. Implementation Case Studies
3.1 Battery Manufacturer Optimization
Implemented in NMC811 cathode batteries, achieving 15% capacity retention improvement after 500 cycles at 4.3V operation.
3.2 Research Institution Application
Used in flexible supercapacitor development, achieving 98% capacitance retention after 10,000 bending cycles.
5. Verified Client Implementations
Case 1: EV Battery Producer (Germany)
| Challenge | Solution | Result |
|---|---|---|
| High-temperature performance decay | 5% EMIM FSI additive | Cycle life extended by 40% at 60°C |
Case 2: University Research Lab (USA)
| Application | Implementation | Outcome |
|---|---|---|
| Solid-state battery interface | 0.5M concentration | Interface resistance reduced by 65% |
6. Technical Consultation & Quotation
Contact our electrolyte specialists for technical datasheets and formulation guidance:
Email: info@vivalr.com
Phone: (86) 15866781826
Request parameters for customization:
– Target concentration range
– Application environment details
– Compatibility requirements
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