The application of laser technology in the automated production line of energy storage/power battery PACK

Lithium batteries are highly favored in the fields of 3C digital and new energy vehicles due to their high energy density, environmental characteristics, and fast charging and discharging. Welding, as a crucial link in the manufacturing process of lithium batteries, has a decisive impact on battery performance and quality. Laser welding technology is increasingly playing an important role in the lithium battery industry due to its advantages of high precision, non-contact, and high efficiency.

Laser welding uses laser focused high-power density beams to irradiate the surface of workpieces, and through thermal conduction, the material dissolves to form a specific solution pool. It is a rapidly developing new welding method. Its characteristics of small heat affected zone, high-precision positioning, high efficiency, and automated production make it play a unique advantage in the welding of lithium battery cells and modules, material cutting, and marking.

Unmanned transmission: The transmission of battery cells to modules is completed by the material transmission system, with flexible expansion of workstations to adapt to process adjustments, achieving small batch and multi variety production.

Multi axis linkage: Adapt to modules of different sizes to ensure the synchronization of the entire production line, especially in the welding process to achieve adaptability of modules of different sizes.

Accurate positioning: Using a visual positioning system to achieve precise positioning of welding surface cleaning, module marking, and manifold welding processes, improving processing quality.

Intelligent monitoring: The MES system enables rapid querying, analysis, and processing of production parameters, data, and other information, ensuring full control from cell loading to module unloading.

Laser welding technology has broad application prospects in welding between various materials, and can be applied to various metal materials such as steel, aluminum, copper, nickel, etc. in lithium battery structures, meeting the high requirements of battery manufacturing.

Source: Laser Net