Battery Pack Manufacturing Welding Techniques

This technical report discusses the various welding techniques used in battery pack manufacturing, specifically focusing on tab to terminal connections. It outlines the importance of selecting appropriate welding systems, including resistance and laser welding, to meet production throughput and quality standards. The report details the characteristics of different battery types, such as cylindrical, prismatic, ultra-capacitor, and pouch, and their specific welding requirements. It explains the advantages of fiber laser welding, including its non-contact nature and ability to weld various material combinations, as well as the cost-effectiveness and efficiency of resistance welding. The document also emphasizes the need for proper tooling and communication protocols to support automation in manufacturing processes. Additionally, it provides guidelines for selecting the most suitable welding technology based on battery pack specifications and production volume demands.