Ultra clear float glass with two sides coated with antireflection coatings for packaging solar battery assembly

Abstract

The invention relates to a solar battery, in particular to ultra clear float glass with two sides coated with antireflection coatings for packaging a solar battery assembly, which is cover plate glass for packaging in a crystalline silicon solar battery assembly and is suitable for the production of the crystalline silicon solar battery assembly. The ultra clear float glass comprises an ultra clear flat glass substrate (1); the upper surface and the lower surface of the ultra clear floating glass substrate are both planes and are respectively provided with a light antireflection coating (2) and a light antireflection coating (3). The invention has the advantages of low cost, simple production process, high price performance, good weather resistance, good light transmission, easily obtained raw materials, low material cost, high hardness of the light antireflection coatings and firm adhesion to the ultra clear float glass substrate and can improve the power increment of the solar assembly to a higher degree. With higher price performance, the invention is convenient for industrial and mass production.

Description

technical field [0001] The present invention relates to a solar cell, in particular to an ultra-clear float glass with double-sided anti-reflective coating for packaging solar cell components, which is a cover glass for packaging in crystalline silicon solar cell components and is suitable for crystalline silicon solar energy. Manufacture of battery components. Background technique [0002] As an important type of green energy, photovoltaic power generation is developing at a very high speed. At present, the core component of photovoltaic power generation with the largest amount is crystalline silicon solar cells. Although the photoelectric conversion efficiency of crystalline silicon solar cells has reached about 17%, it is very difficult to improve the conversion efficiency, which is also a hot research topic that people pay attention to. When crystalline silicon solar cells are applied, they need to be packaged into a component. At this time, the cover glass must be used...

AI Technical Summary

Problems solved by technology

However, the current cover glass made of ultra-clear embossed glass has the following defects: the production process is complicated, the cost is high, and the cost performance is low

When the panel assembly is heated by the lamination furnace, the EVA is melted, and the two are fused together. At this time, the existence of the glass pattern cannot be distinguished by the naked eye, so the very good light transmission performance of the ultra-clear embossed glass is greatly reduced. Reduced light transmittance, lower cost performance

And another kind of flat ultra-clear float glass without embossing surface itself absorbs less sunlight than ordinary glass, but the amount of light reflected by the upper and lower surfaces of this flat ultra-clear float glass is about the same as each other. The surface area is about 4%, so about 8% of the sunlight on the upper and lower surfaces of flat ultra-clear float glass is not fully utilized. Compared with ultra-clear patterned glass, flat ultra-clear float glass has simple manufacturing process and The cost is low, but due to the low transmittance of flat ultra-clear float glass and low power increase, the overall index is worse than that of ultra-clear embossed glass, and there are many deficiencies. Therefore, flat ultra-clear float glass is used in the production of packaging covers Unable to get promoted app

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