The Role and Application of High-Speed Coating Machines in Lithium Battery Production

In lithium battery manufacturing, electrode coating quality directly affects the battery's energy density, safety, and cycle life. High-speed coating machines are key process equipment, responsible for evenly applying slurry onto metal foils (e.g., aluminum or copper) to form electrode sheets. Pengjin Machinery Technology offers high-precision, high-stability coating solutions for EV batteries, energy storage systems, and consumer electronics.

Pengjin’s coaters adopt a dual reciprocating belt coating mechanism with a precision scraper and multi-zone air flotation oven, supporting simultaneous double-sided coating with a thickness control tolerance of ±1μm. The machines are equipped with a closed-loop tension control system, ensuring no foil deviation or wrinkling even at high speeds, thus improving yield rates. Coating methods such as intermittent, stripe, blade, and slot die are supported based on slurry characteristics.

The drying system features a multi-zone temperature-controlled oven using infrared preheating and hot air circulation, enhancing solvent evaporation while preventing slurry surface cracking. The ovens can also be configured with NMP exhaust ports to ensure compliance with environmental standards.

For intelligent control, the machines utilize a PLC + HMI system for one-click parameter switching, real-time production monitoring, and alarm diagnostics. Remote commissioning and data uploading enable smart factory integration.