Lithium Bis(fluorosulfonyl)imide 171611-11-3 F₂LiNO₄S₂

Ecovia Company has emerged as a frontrunner in advanced lithium salt production, specializing in Battery Grade Lithium bis(fluorosulfonyl)imide (LiFSI) [CAS 171611-11-3], a next-generation conductive salt revolutionizing lithium-ion battery electrolytes. Through proprietary purification technologies, Ecovia's LiFSI (purity ≥99.95%) demonstrates superior thermal stability (decomposition temperature >200°C) and enhanced ionic conductivity compared to conventional LiPF6 salts. This fluorine-containing imide compound enables high-voltage battery systems (up to 4.5V) with improved cycle retention (>90% capacity after 1000 cycles in NMC811 cells) and reduced SEI layer resistance. As China's dominant LiFSI supplier, Ecovia supports the global transition to high-energy-density batteries for premium EVs and grid storage solutions, meeting stringent GB/T 36282-2018 standards for lithium battery materials.

  Application  

Lithium bis(fluorosulfonyl)imide is a promising new electrolyte additive for lithium ion batteries showing increased conductivity over LiPF6. Bis(fluorosulfonyl)imide has also been tested in next generation gel polymer electrolytes with improved safety properties.