Solar crystalline silicon cell attenuation test device

Abstract

The invention relates to a solar crystalline silicon cell attenuation test device. By using the optical attenuation principle of a solar battery, the solar crystalline silicon cell attenuation test device simulates a sunlight / lamplight source to carry out optical attenuation on cells in an attenuation box, determines the quality of the raw material of the silicon cells by testing the efficiency value of the cells lost in the optical attenuation process, and uses this standard as one of foundations for evaluating the quality of the silicon cells, thereby ensuring the stable efficiency of the cells. The invention has the advantages of simple structure and convenient operation process, and greatly improves the quality stability of the silicon cells.

Description

technical field [0001] The invention relates to a production equipment of solar cells, in particular to a solar cell attenuation detection device, which is suitable for the inspection of the quality of silicon wafers. Background technique [0002] In the context of global solar energy, when electricity, coal, oil and other non-renewable energy sources are frequently in emergency, and energy problems have increasingly become a bottleneck restricting the development of international society and economy, more and more countries have begun to implement the "Sunshine Plan" to develop solar energy resources and seek economic development. new impetus. As a new renewable energy, solar energy is attracting more and more attention. It is expected that by 2030, renewable energy will account for more than 30% of the total energy structure, and solar photovoltaic power generation will account for more than 10% of the world's total electricity supply; by 2040, renewable energy will accou...

AI Technical Summary

Problems solved by technology

[0003] Although the design principle and structure of solar cell attenuation devices on the market are in compliance with the standards, they have the following disadvantages as a special detection basis for solar crystalline silicon cells (1) The light attenuation of traditional cells uses natural light, but the natural light source is unstable. Unevenness has a great impact on the measured cell attenuation value; (2) Traditional natural light attenuation Because in the open air environment, the surface of the cell is easy to stick to impurities, so that the cell cannot be normally light attenuated; (3) Traditional natural light The attenuation is often disturbed by external factors such as weather, the light attenuation is very passive, and the operation is cumbersome, which may easily cause chipped corners and cracks

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