I. Core Advantages
● Excellent and Controllable Coating Quality: This technology utilizes high-frequency vibration to atomize the electrolyte composite slurry into uniform micron-sized droplets. When sprayed onto the surface of PP/PE-based separators, it forms a uniform coating free of pinholes and particle agglomeration, avoiding the "edge effect" and cracking problems of traditional spraying. Furthermore, the porosity and pore size distribution of the coating can be precisely controlled, ensuring smooth ion conduction while effectively blocking dendrite growth. It can also produce ultra-thin coatings, helping to reduce battery internal resistance.
● High Material Utilization and Controllable Cost: Traditional spraying technologies have a material utilization rate of only 30%-50%, while ultrasonic spraying, due to precise droplet control and less splashing, can achieve a material utilization rate of over 90%. For high-cost electrolyte composite materials, this significantly reduces waste, lowers the manufacturing costs of lithium batteries and other products, and increases corporate profit margins.
● Green and environmentally friendly with strong process compatibility: The spraying process does not require high-pressure airflow, reducing solvent evaporation by 30%-50%, lowering VOC emissions, aligning with the trend of low-carbon manufacturing, and also reducing health hazards to operators.
Shanghai Yangmi's ultrasonic spraying technology is adaptable to various types of electrolyte composite slurries, including water-based and solvent-based slurries. By adjusting parameters such as frequency and flow rate, it can meet the coating needs of diaphragms with different specifications and functional requirements, demonstrating extremely high adaptability.
II. Application Areas
● New Energy Lithium Battery Field: In new energy vehicle power batteries, separators coated with an electrolyte composite coating using ultrasonic spraying technology can improve battery safety and cycle life, meeting the high-load demands of long-term vehicle operation;
● Hydrogen Energy and Fuel Cell Field: In addition to lithium battery separators, ultrasonic spraying technology can also be used for coating related separators or bipolar plates in fuel cells. For example, spraying an anti-corrosion and conductive composite coating containing electrolyte components onto the surface of bipolar plates in an electrolyzer can reduce contact resistance, extend the electrolyzer's lifespan, and help the hydrogen energy industry reduce costs and increase efficiency.
Shanghai Yangmi's experience in ultrasonic high-precision coating can also be applied to fields such as medical, electronics, and glass. For example, in the preparation of surface coatings for medical implants or the precision coating of semiconductor components, the process approach of this technology provides a reference for solving problems such as coating uniformity and material utilization in these fields, promoting the improvement of precision manufacturing levels in multiple industries.
