Large-current concentrating solar cell chip

Abstract

The invention relates to a large-current concentrating solar cell chip and belongs to the technical field of solar power generation. The large-current concentrating solar cell chip comprises multiple negative electrode section layers, a concentrating solar battery base material layer and a positive electrode layer, wherein the concentrating solar battery base material layer enables the positive electrode layer and the negative electrode section layers to be combined ingeniously through a special process. According to the large-current concentrating solar cell chip, on the regional conditions of over 1000 times of condensation and strong light rays, it can be guaranteed that a large current smoothly passes through the positive electrode layer and the negative electrode section layers to be led out without damaging the cell chip; meanwhile, the shape and design of the I-shaped negative electrode section layers of the cell chip effectively enlarge the relative light receiving area, and therefore the purpose of improving the conversion efficiency of the cell chip is achieved.

Description

technical field [0001] The invention relates to a photovoltaic power generation component, in particular to a high-current concentrating solar cell, which belongs to the technical field of solar power generation. Background technique [0002] Generally, the main benefit sought by high-magnification concentrating solar photoelectric conversion receivers is to obtain high-density solar radiation collected from Fresnel lenses on the effective area of ​​concentrating solar cells. The higher the density, the fewer concentrating solar cells used on the same area, and the lower the power generation cost per unit area. [0003] As the lens multiplier increases, the intensity of light concentrated on the concentrating solar cell is greater, and the current converted from the concentrating solar cell is greater. At present, all concentrating solar cells are based on the light intensity of 1000W / m 2 Tested and mass-produced at room temperature, the width of the negative electrode is ...

AI Technical Summary

Problems solved by technology

At present, all concentrating solar cells are based on the light intensity of 1000W / m 2 Tested and mass-produced at room temperature, the width of the negative electrode is within 0.5mm, so its rated current is relatively small, and it is easy to fuse the negative electrode under the condition of large concentration multiple and strong light intensity.

At the same time, when welding or binding processing on both sides of the battery surface, the wire ends of the connecting wires exceeding 200um will enter the effective area of ​​the concentrating solar cell, and if the relative area of ​​the concentrating solar negative electrode is larger, the concentrating solar energy will receive light. The area will be smaller, which will greatly reduce the conversion efficiency of concentrated solar cells

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