OS3®: Universal Electrolyte Solvent

OS3® Is a powerful electrolyte solvent material. In typical Li-Ion applications, it provides maximum benefit in concentrations between 0.5% - 3% by weight. Even though the material is applied in "additive" sized concentrations, it plays a significantly larger role in overall bulk electrolyte system performance. OS3® is an extremely strong solvator of lithium, which is part of its core function of serving to protect the lithium salt from decomposing.

Bulk Stability

PF6 and PF5 will decompose water and carbonate solvents to produce a variety of molecules, like fluorophosphates, CO2 and HF. In a Li-Ion cell, HF is an extremely bad actor, producing additional decomposition of carbonates, salt, and active materials.

OS3® stops the destructive autocatalytic production of HF.

hf
applications

Universal Application

OS3® is compatible across all Li-Ion chemistries and works as a drop-in electrolyte co-solvent material. For best performance, we do recommend optimizing the formulation around the presence of OS3®, as it will change what other "problem solving" additives are required.

OS3® has been successfully tested and demonstrated benefit in the following systems:

Cathodes

NMC
LCO
LFP
LMO

Anodes

Graphite
Silicon-Carbon
LTO

salts

LiPF6
lifsi
litfsi
libf4

No Compromise

OS3® Solvent is designed to solvate Li strongly, with a high flash point, low freezing point, and no effect on bulk electrolyte viscosity and conductivity when used at concentrations of <5%. As shown here, OS3® only begins to negatively impact conductivity at concentrations of more than 2x the recommended amount.

conductivity
dielectric