1. In recent years, with the development of some electric tools, electric cars, electric bicycles, etc., its power core-battery is receiving more and more attention. And the technical innovation of power battery application processing technology is once again presented. As a laser equipment, laser welding machine also plays an important role in the welding field.

2. Power battery welding application laser processing mainly includes battery core, module, PACK, etc. Laser welding application parts include tab, flip sheet, seal, bus bar, PACK module, injection hole package, etc.

3. Application of different power battery components The laser and welding head used in welding parts will be different, and the power required by different welding workpieces is also different. For example, the power requirement of explosion-proof valve is 1KW; The power required for tab soft welding is above 2-3KW.

4. The welding technicians will choose the appropriate laser and welding process parameters according to the customer's battery material, shape, thickness, tension requirements, etc., including welding speed, waveform, peak value, tilt angle of welding head, etc., and set reasonable welding process parameters to ensure the final welding effect to meet the requirements of power battery manufacturers.

5. There are many laser welding parts of the power battery, which have the requirements of withstand voltage and leakage test. For example, at present, the shell material of the battery is aluminum, and the aluminum shell battery accounts for the vast majority of the whole power battery. Laser welding of aluminum is difficult, and it will face problems such as surface bulge, porosity, fire explosion and internal bubbles. Surface bulges, air holes and internal bubbles are fatal injuries of laser welding, and many applications have to be stopped or avoided for these reasons.

6. Many battery manufacturers will have a big headache for this in the initial stage of research and development. The main reason is that the core diameter of the optical fiber used is too small or the laser energy setting is too high. Causes the battery to be incomplete or penetrated, further causing liquid leakage. Now with the medium and high power fiber laser welding machine, this problem can be solved well.

7. In addition, laser surface cleaning of the workpiece to be laser processed can improve the welding quality, and stable welding can guarantee the quality of the battery. Therefore, enterprises in the battery industry should not blindly consider the price when choosing laser equipment, but need to compare the overall performance of the equipment.

8.Haituoer is committed to the research and development and production of laser precision machining and its automation equipment, and develops, produces and sells laser welding, cutting and cleaning equipment with a fairly good level, and concentrates on providing users with complete solutions for precision laser applications.