Description

Lithium Bis(Fluorosulfonyl)Imide is a high-purity lithium salt primarily used as a key electrolyte component in advanced battery systems. This compound is valued for its superior ionic conductivity and excellent electrochemical stability, which are critical for enhancing battery performance and safety. It is an essential material for manufacturers and researchers in the lithium-ion and next-generation solid-state battery industries seeking to improve energy density and cycle life.

Application

• Primary electrolyte salt in high-voltage lithium-ion batteries for electric vehicles and energy storage systems.
• Key component in solid polymer electrolytes for solid-state battery development.
• Additive or co-salt in liquid electrolytes to improve thermal stability and safety.
• Electrolyte material for lithium metal batteries to stabilize the anode interface.
• Used in electrochemical research and development of novel energy storage devices.
• Component in specialty ionic liquid formulations for specific industrial processes.

Basic Information

Product Name	Lithium Bis(Fluorosulfonyl)Imide
CAS No.	171611-11-3
Molecular Formula	LiN(SO2F)2
Molecular Weight	187.07 g/mol
Synonyms	Lithium Bis(fluorosulfonyl)imide; LiFSI; Lithium Bis(Fluorosulfonyl)Amide; Lithium Bis(Fluoromethanesulfonyl)Imide (common misnomer); LiN(FSO2)2; Lithium Fluorosulfonyl Imide; Bis(fluorosulfonyl)azanide lithium salt
EINECS	Contact for details

Quality Control

Our Lithium Bis(Fluorosulfonyl)Imide is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and ICP-MS for trace metal content, to ensure it meets the exacting standards required for advanced battery applications. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be handled under a dry, inert atmosphere (e.g., argon or nitrogen) to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.9%
Water Content (KF)	≤ 50 ppm
Chloride (Cl)	≤ 10 ppm
Sulfate (SO4)	≤ 20 ppm
Heavy Metals (as Pb)	≤ 5 ppm
Lithium (Li)	Conforms to theoretical
Fluoride (F)	≤ 15 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.