Application of Laser Soldering Technology in Button Battery
2020-09-05
Battery manufacturing technology has been continuously growing with the development of modern digital products, and its types are becoming more and more diverse, including cylindrical batteries, square batteries, soft-pack batteries, and battery PACKs for new energy applications, among others. The button battery, which is closely related to wearable devices, has already entered our lives, and Bluetooth headsets are one of the important examples of button battery applications.
Bluetooth Headset & Button Battery
Button batteries generally consist of a main control chip, battery, flexible circuit board, and controller, among which the cost of the battery accounts for about 10% to 20%. Laser welding technology can meet the diverse processing technology of button batteries, such as welding of different materials (stainless steel, aluminum alloy, nickel, etc.), irregular welding trajectories, excellent welding appearance, strong welds, finer welding points, and more precise positioning of welding areas. Moreover, laser welding can enhance product consistency and reduce damage to the battery, avoiding waste of raw materials.
I. Button Battery Laser Soldering Process:
1. Higher energy density, making it easier to reach the material absorption threshold (especially for high-reflectivity materials, the advantage is more obvious).
2. Various welding trajectory patterns can be achieved, such as sinusoidal, spiral, and spiral point shapes.
3. Smaller weld spots and larger depth-to-width ratios of welds, allowing for a larger contact area with the same weld point size, resulting in greater weld strength and tensile force.
4. Higher power density. Its welding principle differs from traditional welding based on large molten pools, resembling the effect of embedded welding, which can achieve higher weld strength, especially advantageous in welding different materials, reducing the formation of brittle compounds.
II. Advantages of Laser Soldering Machines:
1. Suitable for soldering small precision parts, especially in places where soldering workpieces are sensitive to temperature.
2. Fast heating speed and precise positioning, capable of completing within 0.2 seconds.
3. As long as the workpiece surface is kept clean, there is no need to use flux, eliminating the need for secondary cleaning, maximizing the workpiece's service life.
4. Non-contact welding, with no generation of static electricity.
5. The yield rate of soldering is higher than that of ordinary automatic soldering machines.
6. Equipped with a visual positioning system, suitable for assembly line production.
About Us
Shenzhen SHINHOP Laser Equipment Co., Ltd. It is a scientific and technological enterprise specializing in the research and development, production and sales of industrial laser processing equipment. It has been deeply engaged in the new energy industry for 20 years, focusing on the non-standard customization of automatic lithium battery cell assembly line and module PACK production line. It has successively obtained the national high-tech and specialized new enterprise certification.
Contact Us
Company Address：Building 6, Jingneng Science and Technology Environmental Protection Industrial Park, No.3 Baolong 2nd Road, Longgang District, Shenzhen City, Guangdong Province
Customer service hotline:18898357350
Customer service E-mail:info@shinhop.com
Related News
2026-06-11
Contact Details
Hotline
Address
Building 4, Jingneng Technology and Environmental Protection Industrial Park, 3 Baolong 2nd Road, Longgang District, Shenzhen, Guangdong Province，China
YouTube
TikTok