PVDF Binders for Li-ion Batteries

Targray’s ultra-viscous battery-grade PVDF binder formulas deliver best-in-class adhesion for lithium-ion battery manufacturers and R&D Laboratories. Our PVDF formulas are available in commercial-scale quantities both as homopolymer and copolymer powders. For additional details and product specifications, consult the table below.

PVDF Binder | Homopolymer Formulas

Targray PVDF homopolymer is an ultra high viscosity, battery-grade PVDF binder developed specifically for the li-ion battery market. The powder’s high purity and crystallinity levels deliver exceptional resistance in electrolytes typically used for lithium-ion battery manufacturing.

Physical PropertiesType 1Type 2
Density(g/cc)1.77~1.791.77~1.79
Particle size(μm)(D50)≤70≤70
Water Absorption(%)(Time 24 hr)≤0.040≤0.040
Dissolution
Rotational viscosity(cps)8000-12000
Rotational viscosity(cps)8000-16000
Molecular
Molecular weight(Da)1,000,000~1,250,0001,500,000~2,000,000
Intrinsic viscosity(dl/g)3.0~3.33.8~4.5
Molecular weight distribution1.8-2.51.8-2.5
Thermal
Melting Point(℃)169~173169~173
Crystallization Temperature(DSC peak)(℃)137~144137~144
Glass Transition Temp, Tg(℃)-40.0-40.0
Decomposition Temperature(℃)375375
Crystallization Heat(J/g)50.0~56.050.0~56.0
Heat of Fusion(J/g)55.0~66.055.0~66.0

PVDF Binder | Copolymer Formulas

Targray PVDF copolymer is an ultra high viscosity grade polyvinylidene fluoride binder for battery manufacturers. This PVDF binder powder can effectively reduce the amount of formula required in manufacturing, lowering battery DC resistance, improving energy density of the battery charge and enhancing discharge performance. Moreover, it inhibits cell resistance changes during cycling, which meets the rigorous needs of automotive battery manufacturers.

Physical PropertiesType 1Type 2
Density(g/cc)1.77~1.791.77~1.79
Particle size(μm)(D50)≤70≤70
Water Absorption(%)(Time 24 hr)≤0.040≤0.040
Dissolution
Rotational viscosity(cps)8,000-10,000
Rotational viscosity(cps)8,000-10,000
Molecular
Molecular weight(Da)1,000,000~1,300,0001,300,000~1,500,000
Intrinsic viscosity(dl/g)3.1~3.53.6~4.0
Molecular weight distribution2.5-3.52.5-3.5
Thermal
Melting Point(℃)162~168162~168
Crystallization Temperature(DSC peak)(℃)130~140130~140
Glass Transition Temp, Tg(℃)-40.0-40.0
Decomposition Temperature(℃)350350
Crystallization Heat(J/g)36.0~45.036.0~45.0
Heat of Fusion(J/g)40.0~50.040.0~50.0

Working alongside organizations including Electrochemical Society and NAATBatt, we’re focused on helping battery manufacturers commercialize ambitious new energy storage technologies.

Related Battery Materials

cathode active materials
Cathode Material

Cathode materials for li ion battery manufacturing. Products include binders, foils, and cathode active materials (NMC, NCA, LMO, LCO).

lipf6 battery electrolyte
Electrolyte Solutions

High performance battery electrolyte solutions. Produced with LiPF6 salt and a high phosphorous content flame retardant, DMMP.

battery foils
Copper Foil

An anode foil portfolio of copper current collectors including Electrodeposited (ED), rolled annealed (RA) and roll-clad Cu foils.

dry cells
Dry Cells

Dry cells for battery manufacturers, start-ups and R&D labs. Offered in NCA, LCO, NMC, and LNMO cathode chemistries.