PVDF - Solvay Solef 5130
This product is sold per kg.
Solvay Solef® 5130 is an ultra-high molecular weight and ultra-high viscosity polyvinylidene fluoride (PVDF) grade specifically engineered as a high-performance binder for xEV traction batteries. By synergizing ultra-high molecular weight with polar functional groups distributed across the polymer chain, Solef® 5130 creates reinforced intermolecular interactions.
This unique structural design delivers unparalleled adhesion to both active materials and current collectors. It allows battery manufacturers to significantly reduce binder content, thereby maximizing energy density, lowering internal resistance, and ensuring long-term cycling stability even in aggressive electrolyte environments.
Product Profile
- Features: Good Adhesion, Ultra High Viscosity
- Uses: Batteries, Binder
Key Features
- Ultra-High Viscosity: Ensures superior electrode adhesion at lower dosages.
- EV Optimized: Tailored for high energy density and better power delivery.
- Chemical Resistant: Minimizes electrolyte swelling and active material loss.
- Universal Binder: Compatible with LCO, LFP, NMC, NCA, and graphite.
- Stable NMP Dissolution: Optimized mixing kinetics and viscosity retention.
Technical Specifications
Typical properties: these are not to be construed as specifications.
Processing, Storage & Handling
- Dissolution Guidelines: Processing is critical to battery performance. Solef® 5130 should be dissolved in an organic solvent such as NMP. To optimize efficiency and prevent clumping, the PVDF powder must be added slowly to the solution under continuous stirring.
- Mixing Optimization: The dissolution kinetics are highly dependent on mixing speed, stirrer geometry, and temperature. Slight heating of the solution can significantly reduce dissolution time.
- Environmental Control: It is strictly advised to use dry materials and solvents, and to operate in a tightly moisture-controlled (dry) environment to ensure optimal dissolution and prevent contamination.
Figure: Dissolution kinetics of Solef® 5130 in NMP, demonstrating the critical impact of mixing time and temperature on achieving stable viscosity.