A double glass component

Abstract

The invention discloses a double-glass assembly comprising back glass. An upper portion of the back glass is connected to a tandem type black silicon cell by using a first encapsulation layer, and anupper portion of the black silicon cell is connected to front glass by using a second encapsulation layer. A positive electrode and a negative electrode of the black silicon cell are introduced by a line box, wherein the thickness of the front glass is not larger than 2.0mm. According to the double-glass assembly, the utilization of light energy of the assembly in a short wavelength band can be improved on the basis of reducing production cost, and thus the overall power of a same type of module is improved.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic equipment, and in particular relates to a double-glass component. Background technique [0002] With the rapid development of photovoltaic modules, reducing costs and increasing the power of modules is the development direction of all photovoltaic companies and the entire industry. Therefore, from the perspective of cost reduction of cells, various manufacturers are changing from mortar cutting silicon anchors to diamond wire cutting. At the same time, in order to reduce the cost of photovoltaic main materials with black silicon technology or purely use the grid line structure of the cell to reduce the amount of silver paste to reduce the manufacturing cost of the cell; from the perspective of glass cost, reducing the thickness of the glass can be improved mainly to reduce For the cost of photovoltaic modules, for example, if the front glass with a thickness of 2.5mm is reduced to 2.0mm witho...

AI Technical Summary

Problems solved by technology

[0003] Black silicon technology can improve the absorption capacity of cells in the short-wave band, but the thicker glass has already absorbed most of the incident short-wave band, and the thickness of the commonly used 2.5mm glass does not change. The component side efficiency of black silicon and non-black silicon cells does not change much, and the simple reduction of glass thickness can reduce the cost of raw materials. However, for the low short-wavelength light utilization rate of non-black silicon cells, the power efficiency of the component side is also not obvious.

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