Novel flexible rollable silicon-based solar module welding method

Abstract

The invention discloses a novel flexible rollable silicon-based solar module welding method. The method comprises the steps that a battery piece is cut into N small piece battery strings in a laser cutting mode without splitting; a hard protective layer is cut into N small pieces according to the size of the small piece batteries; the cut hard protective layer covers the dispensed small piece battery strings by using automatic arrangement equipment, and lamination is conducted to form small strings of battery pieces; the small strings of battery pieces are distributed and arranged into small standard pieces according to required sizes, and are covered with an adhesive film; the positive electrodes and the negative electrodes of the small standard pieces covered with the adhesive film are simultaneously connected in series and welded through the automatic welding equipment to form 1P standard components; and the 1P standard components are arranged by the automatic arrangement equipment, and are mutually adhered and fixed by the adhesive film to form a 5P standard component. According to the invention, the hard protective layer is firstly attached to the battery pieces, and then the welding operation is carried out, so that the safety performance is greatly improved, the breaking probability is reduced, the loss is reduced, the quality of a finished product is improved, and the production yield and the production automation degree are greatly improved.

Description

technical field [0001] The invention relates to the technical field of solar modules, in particular to a novel flexible and rollable silicon-based solar module welding method. Background technique [0002] In the traditional welding method and process, the hard protective layer is completely covered on the front of the small battery, so the protective layer must be glued after the interconnection strips are welded, so that the small battery can be welded without protection. Welding operation, because the silicon-based battery itself is fragile, the operation without protection will easily cause damage to the battery sheet and affect the quality of the finished product. The traditional welding method involves slicing all the small batteries and then arranging and welding them. The process is cumbersome, and the degree of automation is not high, which affects production capacity. Contents of the invention [0003] In view of the above problems, the present invention provide...

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Problems solved by technology

[0002] In the traditional welding method and process, the hard protective layer is completely covered on the front of the small battery, so the protective layer must be glued after the interconnection strips are welded, so that the small battery can be welded without protection. Welding operation, because the silicon-based battery itself is fragile, the operation without protection will easily cause damage to the battery sheet and affect the quality of the finished product

The traditional welding method is cumbersome and cumbersome, and the process of arranging and welding all the small batteries is cumbersome, and the degree of automation is not high, which affects production capacity.

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