Foranext® LiFSI and LiTDI for lithium-ion batteries

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Ultra pure LiFSI (Lithium bis(fluorosulfonyl)imide) and LiTDI (Lithium 4,5-dicyano-2-trifluoromethylimidazole) electrolyte salts for high performance Li-ion batteries. Combining fluorine and industrial processes expertise, we develop high purity Foranext® lithium salts LiFSI and LiTDI that help significantly increase the power performance, stability, and lifetime of batteries. 

Performance of electrolyte lithium salts is highly dependent on their purity. Using expertise in both fluorochemicals and industrial processes, Arkema has developed two new ultra pure LiFSI and LiTDI salts.


LiFSI, known as the next blockbuster Lithium salt, has the highest ionic conductivity and is extremely stable (even at 5V). These characteristics make LiFSI an excellent choice for all voltage and cathode/anode systems.


LiTDI is an additive that helps significantly increase battery lifetime, due to several properties: Solid Electrolyte Interface (SEI) stabilization, HF and water scavenging, and aluminum current collector passivation.


  • Electronics and electrical
  • Renewable energy