Exilva F

Borregaard’s Exilva® F provides benefits to both electrode slurry formulations and the separator in lithium-ion (Li-ion) batteries. The additive serves as a strengthening aid to improve the temperature resistance of the separator and enhances the robustness of water-based electrode formulations.

The unique rheological and strengthening properties of Exilva increase the robustness and stability of Li-ion battery formulations. The additive is highly shear-thinning, enabling precise and controlled casting of slurries while forming a strong and resilient electrode coating. In addition to rheology control, Exilva reduces the mud-cracking tendency of the drying film.
Implementing Exilva improves the temperature resistance of the separator and reduces the swelling of both the electrode and separator. The high compatibility of Exilva allows it to be used in both solvent-based and water-based emulsions of PVDF.

About Borregaard’s Exilva® F

Exilva® F is a microfibrillated cellulose, produced from Norway Spruce. It possesses high surface area, superior salt tolerance and solvent compatibility, low conductivity, high temperature and pH stability and extraordinary film-strength. Formulating with Exilva F brings a sustainable and environmentally friendly way of improving the performance and safety of lithium-ion batteries.

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