1.The new energy industry, especially lithium batteries, photovoltaics, and wind power, has extremely high performance requirements for adhesives, which has driven rapid development in adhesive technology.1. Lithium Battery FieldAmong the "four main materials" of lithium batteries (cathode, anode, separator, electrolyte) and the "three auxiliary materials" (copper foil, aluminum foil, adhesives), adhesives (mainly PVDF and SBR/CMC) are key materials in the construction of battery electrodes.Cathode and Anode Sheet Bonding:PVDF (Polyvinylidene Fluoride): Mainly used for cathode sheets to bond the active cathode materials (such as lithium iron phosphate and ternary materials) onto the aluminum foil current collector. It has excellent electrochemical stability, adhesion, and flexibility.SBR/CMC (Styrene-Butadiene Rubber/Carboxymethyl Cellulose Sodium): Mainly used for anode sheets to bond the active anode materials (such as graphite) onto the copper foil current collector. SBR provides adhesion, while CMC acts as a thickener and dispersant.Cell Assembly and Packaging:Thermal Conductive Structural Adhesive: Used for bonding and securing the cell to the module housing while conducting heat generated during cell operation to the cooling system, making it a core material for thermal management.Sealant: Used to seal battery covers, preventing moisture and air ingress, ensuring the long-term safety and reliability of the battery.PACK Structural Adhesive: Used for structural bonding of the entire battery pack, providing high strength, impact resistance, and flame retardancy, protecting the cell module from external impacts.Safety and Protection:Flame Retardant Adhesive: Applied between cells or inside modules to provide heat insulation and flame resistance, serving as an important safety barrier for batteries.Conductive Adhesive: Used for bonding busbars and other parts, providing both electrical connectivity and structural stability.

2. Photovoltaic Solar Energy FieldPhotovoltaic modules need to operate stably outdoors under harsh conditions (UV, high temperature, high humidity, thermal cycling) for over 25 years, requiring adhesives with excellent weather resistance.Lamination and Encapsulation:EVA/POE Adhesive Films: These are the "heart" encapsulation materials of photovoltaic modules. Through hot-pressing, they firmly bond the solar cells, glass, and backsheet into an integrated unit while providing excellent insulation, light transmission, and aging resistance. POE films have an advantage in anti-PID (Potential Induced Degradation) performance.Frame and Junction Box Bonding:Silicone Sealant: Used for sealing the aluminum frame to the glass and bonding the junction box to the backsheet. Its excellent temperature resistance (-60°C to 200°C), UV resistance, and elasticity ensure the long-term airtightness and reliability of the module.Shingled Modules:Conductive Adhesive: In shingled technology, it replaces traditional ribbons by achieving electrical connections and mechanical fixing between cells with conductive adhesive, reducing shading and improving efficiency.

3. Wind Power Generation FieldWind turbines, especially the blades and towers, endure tremendous dynamic loads and harsh environmental corrosion over long periods.Blade Composite Material Bonding:Epoxy Structural Adhesive: Used to bond the main spar, web, and shell of the blade, serving as the structural core of the blade. It requires extremely high shear strength, peel strength, and fatigue durability.Blade Leading Edge Protection:Polyurethane Adhesive: Used to attach anti-erosion protective films, preventing damage to the blade's leading edge from rain erosion and sand abrasion.Assembly and Sealing:Polyurethane Sealant: Used for sealing the nacelle, tower, and other parts to prevent the ingress of rainwater and dust.Anaerobic Adhesive: Used for bolt locking and sealing to prevent loosening under vibration.