Lithium Tetrafluoroborate (LiBF4) Electrolyte Salt
CAS Number: 14283-07-9
Lithium tetrafluoroborate (LiBF4) is an electrolyte salt valued for excellent low-temperature performance and stability in propylene carbonate-based systems, making it suitable for low-temperature and wide-voltage Li-ion applications. Its lower melting point versus LiPF6 facilitates dissolution in less polar solvents.
Technical Specifications
| Fe (ppm) | ≤2 |
| appearance | White crystalline powder |
| purity (%) | ≥99.5 |
| moisture (ppm) | ≤30 |
| free acid as HF (ppm) | ≤50 |
Applications
- Low-temperature lithium-ion battery electrolytes (-40°C operation)
- PC-based electrolyte formulations for lithium primary batteries
- Capacitor electrolyte additive
- Electroplating and surface finishing
- Ionic liquid synthesis intermediate
Key Features
- Superior low-temperature discharge retention compared to LiPF6 electrolytes
- Compatible with PC solvent, preventing graphite exfoliation when used correctly
- High purity reduces parasitic reactions and extends shelf life of formulated electrolytes
- Packaged under inert atmosphere to maintain anhydrous quality during transport
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