极片涂布面密度控制系统设计

Design of Areal Density Control System for Electrode Coating

摘要: 极片涂布是锂电池生产的核心工序，涂层均匀性直接决定锂电池的产品质量与使用安全。本研究基于上位机工控平台，开发一套极片涂布面密度控制系统，核心工作包含上位机软件研发与控制策略设计两大模块。其中，控制策略是系统的技术核心，涵盖被控对象模型辨识、控制器设计及控制方案开发等关键环节。实际应用结果表明：该控制系统可有效提升涂布工序的过程能力，显著降低锂电池生产成本。

Abstract: Electrode coating is a core process in lithium-ion battery production, and the uniformity of the coating directly determines the product quality and operational safety of lithium-ion batteries. Based on the upper computer industrial control platform, this study developed an areal density control system for electrode coating, with the core work including upper computer software development and control strategy design. Among them, the control strategy is the technical core of the system, covering key links such as controlled object model identification, controller design and control scheme optimization. Practical application results show that the control system can effectively improve the process capability of the coating process and significantly reduce the production cost of lithium-ion batteries.