HFPME (1,1,2,3,3,3-Hexafluoropropyl Methyl Ether, HFE-356, >99.5%) as Battery Electrolyte Co-Solvent and Additive, 25-100 g/bottle, CBESAHFPME

HFPME (1,1,2,3,3,3-hexafluoropropyl methyl ether, widely designated as HFE-356 or HFPM) is a specialized hydrofluoroether utilized as a low-viscosity co-solvent, diluent, and functional electrolyte additive in advanced lithium-ion and sodium-ion battery formulations.

The key benefits of HFPME are: (1) Superior Sub-Low-Temperature Performance: The combination of low bulk viscosity and reduced solvation-shell rigidity preserves high ionic conductivity and discharge capacities in deep sub-zero environments (down to -40 °C and below). (2) Enhanced Separator Wetting: Low surface tension accelerates electrolyte uptake during cell manufacturing, ensuring uniform ionic pathways across rolled or stacked jellyrolls. (3) Intrinsic Safety & Flame Retardancy: The high mass fraction of fluorine atoms quenches free radicals and raises the thermal abuse threshold, mitigating the flammability risks associated with volatile hydrocarbon carbonates. (4) Anode Stabilization in Sodium & Lithium Systems: Proven efficacy in stabilizing both carbonaceous and alkali-metal anode interfaces by forming protective, fluorine-rich surface layers.

Part Number	CBESAHFPME (C-BESA-HFPME)
CAS	382-34-3
Chemical Formula	C4H4F6O
Appearance	Colorless Liquid
Purity	>99.5% (Battery Grade)
Molecular Weight	182.07 g/mol
Package Size	25 g, 50 g, and 100 g/bottle

Notes: Please store the HFPME in the glovebox due to its sensitivity to humidity and oxygen. 

References: 

1. Y. Hou, et al. Fluoroalkyl ether electrolyte with sulfur-wetting and shuttling-inhibition functionalities for high-rate lithium sulfur batteries, Journal of Power Sources,2022, 541, 231694
2. S. Wan, et al. High-Voltage and Fast-Charge Electrolytes for Lithium-Ion Batteries, Batteries & Supercaps, 2022, 5, e202200368