Description

Description

Lithium Perfluorobutanesulfonate (CAS No. 131651-65-5) is a high-purity, fluorinated lithium salt with the molecular formula C₄F₉LiO₃S and IUPAC name lithium;1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate. This specialized compound is engineered for advanced electrochemical applications, offering exceptional thermal stability, hydrophobicity, and ionic conductivity. Its perfluorinated butyl chain enhances solubility in non-aqueous electrolytes while maintaining low viscosity, making it ideal for high-performance lithium-ion battery formulations. With a purity grade tailored for research and industrial use, this product is rigorously tested to ensure consistency in conductivity, moisture content (<50 ppm), and trace metal impurities. Suitable for use as a supporting electrolyte, additive, or co-salt in next-generation energy storage systems, supercapacitors, and specialty chemical synthesis. Packaged under inert gas to preserve integrity, each batch includes comprehensive analytical documentation (HPLC, NMR, ICP-MS).

Application

Lithium perfluorobutanesulfonate is primarily utilized as a conductive salt in advanced lithium-ion batteries, where its perfluorinated structure improves electrolyte stability at high voltages (>4.5V). Researchers employ it to enhance cycle life in lithium-sulfur batteries by mitigating polysulfide shuttling. The compound also serves as a hydrophobic electrolyte additive for electrochemical sensors operating in humid environments. In organic synthesis, it acts as a Lewis acid catalyst for fluorination reactions.

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