PVDF Binder
High viscosity battery-grade polyvinylidene fluoride bindersPVDF 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 Properties | Type 1 | Type 2 |
| Density（g/cc） | 1.77~1.79 | 1.77~1.79 |
| 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） | 1,000,000~1,250,000 | 1,500,000~2,000,000 |
| Intrinsic viscosity（dl/g） | 3.0~3.3 | 3.8~4.5 |
| Molecular weight distribution | 1.8-2.5 | 1.8-2.5 |
| Thermal | ||
| Melting Point（℃） | 169~173 | 169~173 |
| Crystallization Temperature(DSC peak)（℃） | 137~144 | 137~144 |
| Glass Transition Temp, Tg（℃） | -40.0 | -40.0 |
| Decomposition Temperature（℃） | 375 | 375 |
| Crystallization Heat（J/g） | 50.0~56.0 | 50.0~56.0 |
| Heat of Fusion（J/g） | 55.0~66.0 | 55.0~66.0 |
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 Properties | Type 1 | Type 2 |
| Density（g/cc） | 1.77~1.79 | 1.77~1.79 |
| 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） | 1,000,000~1,300,000 | 1,300,000~1,500,000 |
| Intrinsic viscosity（dl/g） | 3.1~3.5 | 3.6~4.0 |
| Molecular weight distribution | 2.5-3.5 | 2.5-3.5 |
| Thermal | ||
| Melting Point（℃） | 162~168 | 162~168 |
| Crystallization Temperature(DSC peak)（℃） | 130~140 | 130~140 |
| Glass Transition Temp, Tg（℃） | -40.0 | -40.0 |
| Decomposition Temperature（℃） | 350 | 350 |
| Crystallization Heat（J/g） | 36.0~45.0 | 36.0~45.0 |
| Heat of Fusion（J/g） | 40.0~50.0 | 40.0~50.0 |
Working with supply partners and organizations including the Electrochemical Society and NAATBatt International, we help lithium-ion battery manufacturers and researchers worldwide commercialize ambitious new energy storage technologies.
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