Shidai SiKang FSI-001 is a light yellow or colorless transparent liquid, which is an electrolyte additive formed by dissolving 30% W lithium difluorosulfonyl imide (LIFSI) solid powder in the solvent methyl ethyl carbonate 70% W. LIFSI has the advantages of good electrochemical stability, excellent low-temperature performance, good hydrolysis stability, high conductivity, and environmental friendliness. It can be used as a next-generation lithium salt electrolyte for secondary lithium-ion batteries as a replacement or partial replacement for lithium hexafluorophosphate. It can be widely used in electrolytes, especially in power batteries, to improve the cycling performance, low-temperature performance, and rate performance of power batteries. In the electrolyte of rechargeable lithium batteries, it can effectively reduce the high and low temperature resistance of the SEI layer formed on the electrode plate surface at low temperatures, reduce the capacity loss of lithium batteries during storage, and thus improve the battery capacity and electrochemical performance.

characteristic:

Good electrochemical stability;

Good high-temperature stability (under anhydrous conditions, does not decompose below 200 ℃);

Excellent low-temperature performance;

Good hydrolysis resistance

High conductivity;

The environment is more friendly;

The above advantages can enable lithium batteries to achieve better battery capacity, low-temperature performance, cycle life, and high rate performance.

This product can be used as an electrolyte additive for lithium-ion batteries and applied to 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, reduce the capacity loss of lithium batteries during storage, and provide high battery capacity and electrochemical performance. It can also be used as an electrolyte for primary batteries; It can also be used as an antistatic agent and catalyst for polymerization reactions in the industrial field.

Difluorosulfonylimide lithium salt

Molecular formula: F2NO4S2. Li

CAS：                 171611-11-3

Molecular weight: 52KV (0.1 "gap)

Melting point: 124-128 º C

Solvent (EMC): Methyl ethyl carbonate

CL content: ≤ 3 μ g/g

Moisture content: ≤ 20 μ g/g

Chromaticity: ≤ 50HaZen

Hydrofluoric acid content: ≤ 50 μ g/g

Density: 1.219 ± 0.008g/cm3

Calcium content: ≤ 3 μ g/g

Iron content: ≤ 3 μ g/g

Lead content: ≤ 3 μ g/g

Sodium content: ≤ 90 μ g/g

Chromium content: ≤ 3 μ g/g