The quality standard of lithium difluorosulphonimide for the product of this project is in accordance with the "Lithium difluorosulphonimide salt for power battery electrolyte" (YS/T1302-2019)

Serial number	Project	Index (quality score)%
1	Difluorosulfonimide lithium salt (calculated by F2NO4S2· Li)      ≥	99.9
2	Water contentw/%                                                      ≤	0.005
3	Dimethyl carbonate (DMC) insoluble                       ≤	0.05
4	Free acid (calculated by HF)                                      ≤	0.001
5	Sulfate (calculated by SO42 ⁻)/（mg/kg）             ≤	0.005
6	Chloride (calculated by Cl ⁻)/（mg/kg）                  ≤	0.001
7	Fluoride (calculated by F -)/（mg/kg）                   ≤	0.01
8	iron（Fe）/（mg/kg）                                  ≤	0.0005
9	potassium（K）/（mg/kg）                                   ≤	0.0005
10	sodium（Na）/（mg/kg）                                 ≤	0.01
11	Calcium（Ca）/（mg/kg）                                 ≤	0.0005
12	Cadmium（Cd）/（mg/kg）                                 ≤	0.0002
13	Chromium（Cr）/（mg/kg）                                  ≤	0.0002
14	Copper（Cu）/（mg/kg）                                 ≤	0.0005
15	Magnesium（Mg）/（mg/kg）                                ≤	0.0005
16	nickel（Ni）/（mg/kg）                                  ≤	0.0005
17	lead（Pb）/（mg/kg）                                 ≤	0.0002
18	zinc（Zn）/（mg/kg）                                 ≤	0.0002
19	arsenic（As）/（mg/kg）                                  ≤	0.0002
20	F2NO4S2· Li content is 100% minus the sum of the measured values of impurities listed in the table.

This product can be used as an electrolyte additive for lithium-ion batteries. It can be applied to the electrolyte of rechargeable lithium batteries, effectively reduce the high and low temperature resistance of the SEI layer formed on the surface of the electrode plate at low temperature, reduce the capacity loss of lithium batteries during placement, and thus provide high battery capacity and electrochemical performance of the battery; It can also be used as electrolyte for primary battery, which can improve the cycle performance and magnification performance of power battery; It can be used as polymerization catalyst; It can also be used as antistatic agent in industrial field.

Packaging material: high-density polyethylene bottle or stainless steel packaging barrel

Package specification: 5kg/bottle or 200kg/barrel