Current extraction device for aluminium base flexible conductive backboard
A conductive backplane, aluminum-based flexible technology, applied in the field of solar cells, can solve the problems of inability to weld on the surface of aluminum foil, reduce the manufacturing cost of solar back contact components, reduce the manufacturing cost of solar back contact components, etc., so as to improve market competitiveness, The effect of convenient implementation and lower production cost
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[0014] The present invention will be described in detail below with reference to the drawings and specific embodiments:
[0015] Such as figure 1 Shown is a specific embodiment of the present invention, including the solar cell layer 1, the insulating adhesive film layer 3, the aluminum foil conductive layer 4 and the solar cell back sheet film layer 5 laminated in sequence by high-temperature vacuum pressure. A number of conductive through holes 9 are opened on the insulating adhesive film layer 3, and conductive silver glue 2 is injected into each conductive through hole 9. The conductive silver glue 2 conducts the current generated by the solar cell layer 1 to the aluminum foil conductive layer 4. The solar cell backplane film layer 5 is provided with a number of receiving through holes, and in each receiving through hole, a rough surface electrode extraction cluster point 6 is formed by supersonic cold spraying technology. The supersonic cold spraying technology uses metal pa...
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