Photovoltaic assembly

Abstract

The invention provides a photovoltaic assembly including a silicon wafer cell. PET composite films in a three-layer structure are packaged on the upper and lower surfaces of the silicon wafer cell, a back plate is arranged above the upper-surface PET composite film and a back plate is arranged under the lower-surface PET composite film, a reflection layer is arranged above the back plate above the upper-surface PET composite film and a reflection layer is arranged under the back plate under the lower-surface PET composite film, photovoltaic glass is arranged above the reflection layer above the back plate and photovoltaic glass is arranged under the reflection layer under the back plate, and rayproofing metal films are arranged on the outer surfaces of the photovoltaic glass. The photovoltaic assembly is simple in technology, high in weatherability, enhanced in anti-yellowing performance, excellent in performance, and low in cost.

Description

technical field [0001] The invention relates to the field of photovoltaic modules, in particular to a double-sided glass photovoltaic module. Background technique [0002] Solar cells are semiconductor devices that use sunlight to generate electricity. Solar cell chips can be single-node or multi-node stacked silicon-based thin-film solar cells of amorphous silicon, amorphous silicon germanium, microcrystalline silicon or nanocrystalline silicon, CIGS solar cells , copper indium tin solar cells, copper indium sulfur solar cells, monocrystalline or quasi-monocrystalline silicon solar cells, polycrystalline silicon solar cells, cadmium telluride solar cells, gallium arsenide solar cells, organic solar cells, dye-sensitized solar cells, etc. The disadvantages of the TPT material used in the prior art are that the service life of the TPT material is short and opaque, which leads to a short service life of the photovoltaic module and cannot meet the needs of customers for light t...

AI Technical Summary

Problems solved by technology

The disadvantages of the TPT material used in the prior art are that the service life of the TPT material is short and opaque, which leads to a short service life of the photovoltaic module and cannot meet the needs of customers for light transmission.

In addition, EVA film is currently the main material used to encapsulate solar cells, but it has some shortcomings, such as easy yellowing and aging, poor weather resistance, and short service life.

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