A new ultra-thin terminal lead for laminated components

Abstract

The invention discloses a new type of ultra-thin end lead wire for a laminated assembly. Through the principle of mutual insertion, two parts of the ultra-thin end lead wire are formed. The stamping pattern is arranged without gaps on the ultra-thin substrate to be stamped, and the left-end lead pattern and the right-end lead pattern are symmetrical and intersect each other. One stamping forms two end leads and one stamping residue. After removing the stamping residue, the obtained two ends The lead wires cooperate with conventional bus bars to realize series and parallel connection of laminated batteries. The invention adopts the principle of inter-plugging, makes full use of the effective area of ​​the ultra-thin bus bar substrate, and can form two ultra-thin terminal leads in one stamping, and the residual amount after stamping is small, which improves the stamping efficiency of the ultra-thin terminal leads and reduces material costs; The stamped back-end leads are combined with conventional bus bars to realize series-parallel connection of laminated modules, reduce the electrical loss at the return end, increase the power of laminated modules, and improve the market competitiveness of laminated technology.

Description

technical field [0001] The invention belongs to the technical field of solar battery components, and in particular relates to a novel ultra-thin terminal lead wire for a laminated chip component. Background technique [0002] The lamination technology of solar cells is connected by conductive glue or other conductors, and the long strips of cells after laser cutting are overlapped and welded by "shingling" to form a strip-shaped battery string without a gap between the sheets. The laminated module increases the effective power generation area of ​​the module by eliminating the distance between the battery sheets, and greatly increases the power of the module under the condition of the same or a small increase in the size of the module. Laminated modules are currently one of the main technical routes for high-power modules, which have the characteristics of large effective light-emitting area, high module power and efficiency, and high cell recycling rate. [0003] The stack...

AI Technical Summary

Problems solved by technology

[0006] (1) There are many residual materials after stamping, and there is no way to effectively recycle the residual materials. The cost of the ultra-thin bus bar itself is high, and the large stamping residual materials will further increase the cost of ultra-thin terminal leads and increase the cost of laminated components

[0007] (2) At present, the lead at the end of the laminate needs to be formed by stamping with an ultra-thin substrate. Only one end lead can be produced by one stamping, and the speed is relatively slow

[0013] (3) Only one terminal lead is formed in one stamping, the stamping efficiency is low and there are more stamping residues

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