Lithium-Ion Battery Cells
Solvay presents a portfolio of specialty polymers formulated to supply Lithium-Ion (Li-Ion) batteries with long-term durability, chemical and electrochemical resistance and excessive-temperature efficiency to reinforce sustainability, improve battery energy density, streamline manufacturing and reduce environmental footprint. Specifically, our price-efficient, excessive-performing plastics are manufactured with superior properties improve adhesion, cycle life and processability in cathode binders, and enhance energy and chemical resistance in separators and cell gaskets.
Today’s Li-Ion batteries must ship increased power in additional compact areas. Accordingly, OEMs demand elements with high voltage tolerance, high temperature compatibility, prolonged cycle life and simplified processing for lithium battery excellent performance, manufacturing and storage compatibility. Additionally, the fast expansion of the Li-Ion battery business, OEMs simultaneously require modern solutions and materials with eco-friendly processing methods. Our polymerization technologies deliver a household of specialty polymers that meet and exceed these lithium battery performance and processing expectations. For instance, Solvay continues to lead the battery market in environmentally pleasant options with the event of the primary commercialized water-based mostly Polyvinylidene Fluoride (PVDF) for separator coatings.
Binders and Separators
Improved Battery Energy Density
Modern batteries require larger vitality densities to deliver optimum efficiency in downsized, extra environment friendly techniques and storage. Solvay’s polymerization know-how facilitates chemical modification to enhance the adhesiveness. Flexibility of cathode binders utilized in high density electrodes. The unmatched cohesion and adhesion of our industry-leading PVDF binders permits manufacturers to make the most of less binder content, which allows miniaturization and enhances performance and enhances efficiency. Specifically, Solef® PVDF is a partially fluorinated polymer with glorious chemical properties and tremendous temperature tolerance to offer unparalleled adhesion and anti-gelation and ensure maximum efficiency in the production and efficiency of an array of Li-Ion batteries.
Adhesion is a key property which determines closing efficiency of batteries, especially in the long term. A superb binder guarantees the homogeneous dispersion of active materials. Conductive carbon along with stable bonding to the metallic collector.
Adhesion comparison
Enhanced Durability and Stability
Reliable Li-Ion batteries require extremely adhesive binders with significant flexibility and a dependable interface between the separator and the electrodes to ensure long-term efficiency. The excellent adhesion of Solvay’s high-quality polymers for battery binders affords continued stability over extended periods. Additionally, our engineers coat the separators with extra layers of PVDF which increases wettability and enables excessive lamination energy inside the cell. Solef® PVDF is available in several modified grades used in both high-performance binders. Adhesive separator coatings to increase cycle life by limiting the leakage of electrolytes in fashionable Li-Ion batteries.
Unmatched Versatility and Innovation
Solvay’s Solef® PVDF is manufactured with outstanding mechanical properties to supply extreme versatility in various designs for separators, as a principal element or as further adhesive separator coatings. As well as, this excessive-efficiency, versatile polymer might be modified to create dense gelled or porous separator membranes, as well as conventional solvent-based coatings or trade-first, water-based mostly coatings. Solef® PVDF offers all the benefits of a high-purity resin with chemical and electrochemical stability, fast wettability, managed leakage of electrolytes and excellent adhesion even in the tough environments found in a lithium battery.
Optimized Processing and Manufacturing
As lithium polymer battery pack battery applications proceed to evolve, OEMs require binders and separators with extra advanced and flexible properties than ever earlier than to facilitate streamlined formulation and manufacturing. Solvay’s specialty polymers for lithium battery, i loved this, binders are designed with medium-high molecular weight to provide wonderful adhesion for simplified, straightforward and protected manufacturing processes and slurry preparation. Our versatile supplies for Li-Ion separator membranes and coatings provide a wide range of grades and adaptability to fulfill requirements in a range of purposes.
Cell Gaskets
Advanced Fluoropolymers for Critical Seals
As Li-Ion battery know-how evolves, Solvay gives OEMs with high-efficiency fluoropolymers for cell gaskets to increase battery life and improve battery processing security. Specifically Hyflon® MFA® (perfluoropolymer) and Tecnoflon® FKM (fluoroelastomer) deliver crucial sealing properties with superb chemical, flame and high voltage resistance for improved processability and exemplary sealing performance during operation. Hyflon® MFA® is geared up with distinctive chemical inertness and flame resistance to deliver longevity and sturdiness in modern Li-Ion batteries. Tecnoflon® FKM exhibits excellent mold move. Release to ensure good processability of cell gaskets. These fluorinated supplies provide Li-Ion battery manufacturers with value-efficient element design flexibility while assembly the industry’s advanced efficiency necessities.
