Xiaoqi sheet metal processing and welding spraying
Lithium-ion battery manufacturing
IPG
Although there are some subtle differences between cylindrical, prismatic, or pouch designs, the battery manufacturing process typically consists of the following steps, using a laser to cut and groove the pole pieces, stacking and welding the pole pieces to the tabs, sealing the battery housing injection holes, and finally safety valve welding, and can lid sealing. Coupled with emerging technologies such as laser drying of electrode pastes, these processes consistently provide high speeds and throughput to meet the demands of high-volume lithium-ion battery production.
Lasers to
Battery manufacturing
unique advantages
Fast and good pole piece cutting
Laser cutting, also known as laser slitting, is a non-contact process that has the flexibility to cut pole pieces of arbitrary shapes without deterioration of the edge quality of the pole pieces due to wear and tear of die-cutting tools. Using reliable nanosecond pulsed lasers, IPG makes your electrode piece processing fast and good.
High-output pole piece tab tab welding
Laser welding is a fast, non-contact joining process with consistently high yields, compared to other technologies that are prone to metal fracture due to excessive mechanical forces. IPG's dual-beam laser welding technology dramatically reduces copper and aluminum welding defects at significantly higher speeds than green or blue wavelength laser alternatives.
Faster, more reliable injection hole sealing
Quasi-CW lasers minimize heat input by using high peak power pulses, high-quality injection hole sealing at high speeds, and an extremely reliable air-cooled solid-state fiber laser design that greatly improves continuous run time.
High-throughput lid can welding
Dual-beam lasers seal cans with the necessary high welding speeds and are suitable for large prismatic or blade batteries. IPG offers a wide range of dual-beam laser configurations that dynamically control the power of the core and ring beams in real-time to match battery enclosure sealing requirements.
High-efficiency electrode slurry drying
While conventional convection ovens use fossil fuels and can be up to 100 meters long, laser drying eliminates the carbon footprint and frees up plant floor space and infrastructure. The laser drying process can dry both above and below the surface of the electrode piece, making it faster and more energy-efficient than conventional convection drying methods.
Read more, High-efficiency diode lasers for drying
The fast, low-carbon and environmentally friendly IPG DLS-ECO diode laser provides an extremely efficient and cost-effective electrode slurry drying solution for new energy vehicle battery manufacturers.
Power: up to 200kW per cabinet
Energy efficiency: >52%
IPG DLS-ECO Series
Heating and drying semiconductor laser solutions