Lithium difluoro(oxalato)borate 409071-16-5 LiBF₂(C₂O₄)

Lithium difluoro(oxalato)borate (LIODFB) [CAS 409071-16-5], is a novel boron-based lithium salt demonstrating exceptional performance in high-energy battery systems. This fluorinated oxalate-borate complex enables lithium-ion batteries with enhanced thermal stability (up to 180°C) and improved SEI formation characteristics, particularly in nickel-rich NCA/NMC cathodes. Ecovia's battery-grade LIODFB (purity >99.98%) exhibits ionic conductivity exceeding 8 mS/cm at 25°C while effectively suppressing aluminum current collector corrosion at voltages above 4.3V. As China's dominant LIODFB supplier, Ecovia supports next-generation battery architectures requiring extended cycle life (>2000 cycles at 1C rate) and improved safety parameters for premium EV applications, complying with stringent GB/T 33822-2017 standards for lithium battery additives.

  Application  

Lithium difluoro(oxalato)borate (LIODFB) is a high performance lithium-ion battery salt with high cycle life, power capability, and low-temperature, high rate performance. It combines the advantages of lithium bis(oxalate)borate (LiBOB) and LiBF 4. LIODFB also stabilizes the solid electrolyte interface (SEI) on the surface of the graphite anode, and can be used as an additive to improve the cycling efficiency and capacity retention of the battery.