Pengjin Intelligent: Double-Layer Coater Powering Lithium Battery Production Lines

--How advanced coating technology improves efficiency, precision, and scalability in modern battery manufacturing

Guangdong Pengjin Intelligent Equipment Co., Ltd. introduces its Double-Layer High-Speed Reciprocating Extrusion Coater, an advanced coating solution developed to improve efficiency, precision, and scalability in lithium battery production lines. Designed for high-performance electrode manufacturing, this equipment supports the growing demands of modern battery production and has already been successfully implemented in a turnkey project for Duofuduo New Energy.

As an important part of the lithium battery production process, the double-layer coater doubles processing capacity compared with single-layer alternatives, helping manufacturers increase output while maintaining consistent coating quality. Its high-precision performance is supported by a series of advanced functional modules. The automatic reel system provides ±1 mm docking accuracy and a 99.8% splicing success rate, while the tension control system maintains fluctuation within ≤2 N and keeps edge alignment at 0.1 mm, helping reduce waste and improve process stability. In addition, the servo-driven swing arm cutter supports non-stop splicing at 120 m/min, minimizing downtime in high-speed production environments.

For Duofuduo New Energy’s lithium battery production line, the coater was seamlessly integrated with slurry feeding, traction and correction, and oven systems. The slurry feeding system features ±5 mm level detection to ensure stable material supply, while the traction unit uses CPC alignment technology to reduce wrinkling by 60% and improve electrode yield by 30%. These performance advantages demonstrate how advanced coating equipment can directly support higher-quality electrode production and more efficient battery manufacturing.

As global demand for EV batteries and energy storage solutions continues to grow, efficient and reliable coating systems are becoming increasingly important in lithium battery production. Pengjin’s double-layer coater helps manufacturers address key challenges in coating efficiency, precision control, and production continuity. The successful cooperation with Duofuduo New Energy further highlights Pengjin’s capability to deliver customized, high-performance solutions for the evolving lithium battery industry.