Cadmium telluride glass and crystal silicon wafer photovoltaic cell composite assembly and preparation method thereof

Abstract

The invention relates to a cadmium telluride glass and crystal silicon wafer photovoltaic cell composite assembly. The cadmium telluride glass and crystal silicon wafer photovoltaic cell composite assembly comprises cadmium telluride glass, a crystal silicon wafer, an EVA packaging film, a TPT back plate, an aluminum alloy frame and a junction box in sequence; the cadmium telluride glass, the crystal silicon wafer, the EVA packaging film and the TPT back plate are laid and stacked layer by layer in sequence and fixed through the aluminum alloy frame; the junction box is fixed on the surface ofthe TPT back plate through silica gel; the cadmium telluride glass comprises tempered glass, a polyurethane film layer roller coated on the surface of the tempered glass, and a cadmium telluride filmlayer roller coated on the surface of the polyurethane film layer in sequence; and the cadmium telluride film layer is tightly laminated with the crystal silicon wafer to form the composite photovoltaic cell assembly. The invention also provides a preparation method of the photovoltaic cell composite assembly, comprising the steps of performing preparation of the cadmium telluride glass photovoltaic cell, crystal silicon wafer photovoltaic cell sorting, welding, stacking, laminating, wiring, frame mounting, packaging and testing. The crystal silicon wafer photovoltaic cell composite assemblyhas the advantages of high photoelectric conversion efficiency, low cost and the like.

Description

technical field [0001] The invention relates to the field of solar photovoltaic composite components, in particular to a composite component of cadmium telluride glass and crystalline silicon wafer photovoltaic cells and a preparation method thereof. Background technique [0002] Benefiting from technological progress and the support of relevant policies and regulations, the photovoltaic industry has entered a period of rapid development since the mid-to-late 1990s. Especially in the past 10 years, the upstream and downstream supporting production capacity of the photovoltaic industry chain has exploded. Production capacity has reached 70-75GW, and crystal silicon-modules have reached 85-90GW. Even so, solar photovoltaic power generation still has problems such as slow improvement of photoelectric conversion rate and high initial investment cost. Therefore, improving the conversion efficiency of solar photovoltaic modules, reducing the unit production cost of solar modules ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a composite assembly of cadmium telluride glass photovoltaic cells and crystalline silicon wafer photovoltaic cells and its preparation method in view of the shortcomings of photovoltaic cell components such as low photoelectric conversion efficiency and high cost

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