High - purity PVDF binder Kynar, with over 99.5% purity, a thermal decomposition temperature of 410℃, and a viscosity of 1500 MPa·s, is compatible with the NMP solvent system. PVDF binder has low moisture and high binding strength, and is suited to slurry systems of high - nickel ternary and lithium iron phosphate cathodes. It's a ready - to - use material packaged in 1kg aluminum foil bags.