Crystal silicon battery PID (potential induced degradation) resistant light-weight assembly and battery panel

Abstract

The invention provides a crystal silicon battery PID (potential induced degradation) resistant light-weight assembly, which comprises front board glass, a battery piece, a backboard and a wiring box, wherein the battery piece is positioned between the front board glass and the backboard; the light transmission rate of the battery piece reaches 92 percent or higher; the electricity generating quantity is increased; the rigidity and the mechanical loading capacity of the assembly are not lowered. The crystal silicon battery PID resistant light-weight sassembly has the advantages that the water vapor transmission rate is low; the PID resistant performance of the assembly is improved, so that the assembly is a PID resistant assembly; the PID phenomenon cannot occur during the service life period of the assembly.

Description

technical field [0001] The invention relates to a crystalline silicon photovoltaic module, in particular to a crystalline silicon battery anti-PID lightweight component and a battery board. Background technique [0002] Crystalline silicon is divided into single crystal silicon, polycrystalline silicon, and amorphous silicon. Among them, monocrystalline silicon solar cells are currently the fastest developed type of solar cells. Its structure and production process have been finalized, and its products have been widely used in space and on the ground. [0003] The above-mentioned crystalline silicon can be used to make crystalline silicon photovoltaic modules. Studies have shown that the high voltage between the circuit in the crystalline silicon photovoltaic module and its grounded metal frame will cause the continuous attenuation of the photovoltaic performance of the module. There are many mechanisms causing such attenuation. For example, under the action of the above-me...

AI Technical Summary

Problems solved by technology

The packaged photovoltaic modules need to be placed in the open air. After a period of use, the dust particles in the air will be adsorbed on the cover plate of the photovoltaic module, forming a light-blocking dust covering layer, thereby reducing the photoelectric conversion rate of the photovoltaic module, and at the same time, the large pieces are opaque The coverage of pollutants will also produce hot spot effect, which will lead to local high temperature of photovoltaic modules until they are burned and scrapped

It can be seen that the natural resistance of solar photovoltaic modules is poor, and long-term exposure to the air will cause problems such as attenuation of efficiency and difficulty in cleaning after the surface accumulates ash. Therefore, the photoelectric conversion efficiency of existing photovoltaic modules is low, and the service life generally cannot exceed 20 years

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