Lithium Bis(Fluorosulfonyl)Imide（Lifsi）

Product Name: Lithium Bis(Fluorosulfonyl)Imide（Lifsi）

Abbreviation：Lifsi

Synonyms: Imidodisulfurylfluoridelithiumsalt;Lithiumbis(Fluorosulfonyl)Imide;Lifsi;Bis(Fluorosulfonyl)Imidelithium;Lithiumbisfluorosulfonimide

CAS: 171611-11-3

Molecular formula: F2NO4S2.Li

Molecular weight: 187.0721064

Einecs: 686-526-7

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Structural formula: Lithium Bis(Fluorosulfonyl)Imide（Lifsi）2.jpg

product details

BRIEF DESCRIPTION

Lithium bisfluorosulfonyl imide (LIFSI) is an electrolyte salt commonly used in lithium-ion batteries. It is a compound composed of lithium ions and bisfluorosulfonimide anions.

Lithium bisfluorosulfonyl imide (LiFSI) can be used as the next generation secondary lithium-ion battery to replace lithium hexafluorophosphate due to its high stability (does not decompose below 200°C), excellent low-temperature performance, good hydrolysis stability, and more environmental friendliness. Electrolyte lithium salt.

TECHNICAL INDICATORS

Analysis	Requirement
Exterior	White to Almost white
purity%	99
Melting point(℃)	124-128℃
Density℃(kg/m)	1.052g/cm3 at 25℃
water soluble	Soluble in water

Purpose (USE)

Bisfluorosulfonyl imide lithium salt can be used as an electrolyte additive for lithium ion batteries. When used in the electrolyte of rechargeable lithium batteries, it can effectively reduce the high and low temperature resistance of the SEI layer formed on the surface of the electrode plate at low temperatures, reducing lithium It can also be used as an electrolyte for primary batteries; it can be used as a polymerization catalyst; it can also be used as an antistatic agent in the industrial field.

Lithium bisfluorosulfonimide has the characteristics of good electrochemical stability, good hydrolysis resistance and high conductivity. It can be commonly used in electrolytes, especially in power batteries, to improve the cycle performance and rate performance of power batteries.