The laser welding used for button cell

September 2, 2022
Latest company news about The laser welding used for button cell

In recent years, with the explosion of TWS earphones, the new rechargeable button battery with the advantages of high endurance, high security and personalization has been widely used in various small wearable devices such as TWS earphones, smart watches, smart glasses, and smart speakers. Unprecedented welcome.


The button cell is also called the button battery. The biggest advantage is that it has good consistency and will not bulge during the charge-discharge cycle. It can set a larger battery capacity and directly fit to the PCB board. The new rechargeable button battery realizes fast charging technology and meets the needs of some special application equipment. It is not only environmentally friendly, but also can be recharged and used repeatedly.


With the in-depth development of the 3C electronics industry, customers have put forward higher requirements for battery safety, and subsequently put forward higher requirements on production technology and production line equipment. It is difficult for traditional welding processing technology to achieve the high standard welding index of new button batteries. In contrast, laser welding technology can meet the processing technology diversity of button batteries.

For example, welding of dissimilar materials (stainless steel, aluminum alloy, copper, nickel, etc.), irregular welding trajectories, more detailed welding points and more precise positioning welding areas, etc., not only improve the welding consistency of products, but also reduce the damage caused to the battery during the welding process. Injury is the best welding process for button batteries at present.