Connect with our filtration experts here.
Why Binder Purity Matters
In lithium-ion battery production, binders play a critical role in securing active materials to electrode surfaces. As the industry transitions to water-based polymer binders, which offer environmental and cost advantages, maintaining exceptional purity has become increasingly critical. Even trace contaminants can compromise battery safety and performance.
-
Challenge
-
Solution
-
Results
Preventing Contamination in Water-Based Binders
A leading binder manufacturer expanding its production capacity faced key challenges:
- Metal particles from equipment or raw materials (iron, nickel, stainless steel)
- Gel clumps or agglomerates from binder dispersion
- Foreign matter like fibers or dust from packaging or the environment
These contaminants can lead to:
- Defects in electrode coatings (e.g., uneven thickness, uncoated spots)
- Micro-short circuits or unwanted chemical reactions
- Reduced battery performance, safety, and lifespan
As battery designs evolve toward higher energy density and faster charging, the tolerance for such defects is virtually zero.
Pall’s High-Performance Filtration Technology
To ensure consistent binder purity, the manufacturer standardized Pall’s advanced particulate filtration systems across all production lines. These filters had already been validated by top-tier battery producers for their reliability, durability, and precision.
Why Pall’s Binder Filtration Stands Out:
- Exceptional Particle Removal: Captures over 99.9% of particles ≥10 µm, preventing coating defects and electrical shorts.
- High-Purity, Non-Shedding Filter Media: Made from polypropylene and rinsed to eliminate extractables—ensuring the filter itself doesn’t introduce contaminants.
- Extended Filter Life: High dirt-holding capacity supports longer production runs, reducing downtime and maintenance.
- Robust Chemical Compatibility: Engineered to withstand aggressive binder chemistries without degrading or shedding fibers.
Reliable, Metal-Free Binder Supply
By integrating Pall’s filtration technology, the customer achieved:
- Consistent binder purity across production sites
- Reduced risk of battery defects and thermal events
- Improved product quality and customer trust
Conclusion: Filtration as a Safety-Critical Process
Filtration plays a safety-critical role in battery material manufacturing, going beyond standard quality control. Pall’s filtration solutions help ensure metal-free binder supply, enabling the production of high-performance, defect-free battery cells. As manufacturers scale globally, standardizing filtration is essential for maintaining consistency, protecting end-user safety, and reinforcing brand reputation.
Learn more about the solution that can support your applications or contact an expert today.