LiTFSI Elektrolyte by E-Lyte Innovations

High temperature electrolytes for lithium-ion batteries



Electrolyte salt Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) (
Plus appropriate co-salts depending on the application.
Solvent Carbonate-based solvents i.e. EC, PC, DOL, DME
Solvent type and composition is discussable upon application.
Example composition
1 M LiTFSI dissolved in EC:PC (1:1, v:v)issolved in EC:EMC (3:7, w:w)
Batch sizes manufactory
25 mL – 2.0 L bottles
Batch sizes production site  20 L – 200 L barrels
Delivery time maximum 14 days within EU
Delivery times outside the EU on request.
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    Packaging of our Electrolytes:

    20 L barrel 200 L barrel
    Diameter [mm] <=320 <=600
    Height [mm] <=530 <=1150
    Net weight [kg] ~8,5 ~50
    Material (AISI) 304 / 316L stainless steel 304 / 316L stainless steel
    Quick couplings Nitto Kohki 1P for inert gas
    Nitto Kohki 2P for product
    Alternative couplings on request
    Nitto Kohki 2P for inert gas
    Nitto Kohki 4P for product
    Alternative couplings on request
    Drums per:

    • EU pallet  (120 x 80 cm)
    • Container pallet (114 x 114 cm)
    • Industrial Drum pallet (120 x 120 cm)
    7 drums per pallet
    12 drums per pallet
    12 drums per pallet
    2 drums per pallet
    3 drums per pallet
    4 drums per pallet
    Bottle (25 mL – 2.5 L) Our electrolytes come in UN-certified aluminum bottles (made in Germany), which are wrapped in pouch bags sealed under an inert gas atmosphere.
    Pouch bags Shipped in UN-approved cardboard boxes suitable for the transportation of dangerous goods (in compliance with ADR).

    LiTFSI as conducting salt in electrolytes for high temperature applications


    Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI, LiC2F6NO4S2) is a promising alternative to the most used lithium salt, LiPF6, due to its advanced thermal and chemical stability, including a reduced sensitivity towards hydrolysis.

    However, the inability of LiTFSI to form a protective layer on the aluminum current collector leading to the anodic dissolution of aluminum at high potentials (> 3.5 V vs. Li+/Li), limits its use as single salt, without LiPF6 or fluorinated solvents.

    Application fields

    LiTFSI is highly soluble in water and organic solvents. This enables its use in either water-in-salt electrolytes for aqueous lithium-ion batteries or highly concentrated electrolytes. When used as an additive for high-voltage applications (> 4.5 V vs. Li+/Li), it can enhance the long-term cycling stability > 500 cycles.