It is normal for the battery chip to break because it is fragile and can easily break if not well packaged during transportation. Another point is that the operator's operation during welding may cause cracking, which makes the scale more likely to break during transportation. If the above two conditions are eliminated and the debris is left alone, it may be the removal rate of the photovoltaic strip or cell inconsistency that causes debris to form.
Put the interconnect strip into a soaking box containing flux and soak it for 3-5 minutes, then take it out and dry it (120℃ for 5 minutes) or blow dry with the hairdryer. It is advisable to completely and evenly immerse the interconnect strips with the flux (it is recommended that the flux level exceed the surface of the interconnect strips by 1 cm when soaking). should I write only 100 words?