Electrolyt silicon based anode

Electrolytes for high energy batteries



Electrolyte salt Combination of LiPF6 with lithium imide salts
Plus appropriate co-salts depending on the application.
Solvent Carbonate-based solvents i.e. EC, EMC, FEC
Solvent type and composition is discussable upon application.
Example composition
0.8 M LiPF6+ 0.2 M LiFSI dissolved in EC:EMC (3:7, w:w)+10% FEC
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).

    Electrolytes for high energy batteries


    Silicon is currently considered as the most promising negative electrode material for next-generation high-energy lithium-ion batteries due to its high volumetric (9786 mAh cmSi-3) and gravimetric capacity (3580 mAh gSi-1) on the electrode level besides its economic feasibility and abundance. The major obstacles hindering the practical application of Si negative electrodes are the insufficient cycle life caused by enormous volumetric changes of Si electrode and continuous breakage/reformation of the solid electrolyte interphase in every cycle due to continuous decomposition of electrolyte on the Si electrode.

    Application fields

    Our electrolytes for silicon-based negative electrodes are designed to enable an extended cycle life via formation of a highly efficient solid electrolyte interphase, which is flexible enough to withstand the expansion/shrinkage of the silicon particles, significantly reducing the irreversible consumption of lithium (Li+) ions and the electrolyte. The electrolyte formulations contain optimized combinations of salt and solvent mixtures combined with film-forming additives that work synergistically. The electrolytes are suitable for pure silicon electrodes as well as silicon suboxides (SiOx with x≈1) containing electrodes and silicon/graphite blends.