Westra is revolutionizing the next generation of lithium-ion batteries with its proprietary PFAS-free and NMP-free conductive binder technology, engineered to meet the highest performance standards while anticipating the most stringent regulatory landscapes. Our solution has been validated across multiple battery chemistries, demonstrating excellent compatibility with both LFP (Lithium Iron Phosphate) and NMC (Nickel Manganese Cobalt) cathodes, the leading materials in the global battery market.
At the core of Westra's innovation is a conductive polymer binder that uniquely integrates two critical functionalities: mechanical cohesion and electronic conductivity, within a single material system. This multifunctionality enables the elimination or drastic reduction of conventional conductive additives such as carbon black or carbon nanotubes, while enhancing electrode integrity and reducing interfacial resistance. The result is a significant simplification of electrode formulations and manufacturing processes, with reduced energy consumption, lower material costs, and improved sustainability metrics.
Unlike standard binders such as PVDF (polyvinylidene fluoride), which is itself a fluoropolymer classified within the PFAS family, Westra Materials's binder is fully PFAS-free. PVDF-based binders have long been the industry standard for Li-ion batteries but rely on hazardous solvents such as NMP (N-methyl-2-pyrrolidone) for processing and pose increasing regulatory risks due to their fluorinated nature. In fact, under proposed PFAS restrictions, PVDF is explicitly targeted as part of the broader ban on fluoropolymers due to their persistence, potential toxicity, and environmental accumulation.
Westra's binder technology not only simplifies electrode formulations but also improves their overall performance. By making the electrodes simpler and decreasing the dead weight, the conductive binder enables higher energy density, better cycling performance, and longer product lifetimes. This means batteries can deliver more power for longer periods while maintaining reliability and safety across applications ranging from electric vehicles to large-scale energy storage.
By contrast, Westra's binder platform provides a safe, future-proof alternative that enables battery manufacturers to stay ahead of evolving legislation and consumer expectations for sustainable products, all without compromising on performance.