Efficient solar cell
A technology of solar cells and cells, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of high electron absorption rate, low electron absorption rate, and poor light transmittance, so as to increase light transmittance and improve light transmittance The effect of increasing the electron adsorption rate
Inactive Publication Date: 2016-11-16
浙江中晶新能源股份有限公司
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Problems solved by technology
[0002] Solar cells are divided into monocrystalline cells and polycrystalline cells. The front motors of existing solar cells generally use comb-shaped electrodes, or a combination of parallel auxiliary grid lines and vertical main grid lines. Although the comb-shaped electrode has better light transmission, the electron absorption rate is low, and the positive electrode combined with the parallel sub-grid line and the vertical main grid line has a high electron absorption rate but poor light transmittance. Therefore, how to increase the light transmittance of solar cells on the premise of improving the electron adsorption rate is a major problem in improving the light energy utilization rate of solar cells.
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[0015] refer to Figure 1-2 , a high-efficiency solar battery sheet of the present invention, including a battery sheet 1, a spherical protrusion 2, a main grid silver wire 3, a sub-grid silver wire 4, a light transmission hole 5, a reflector 6 and a light collecting plate 7, the battery sheet 1 The upper surface is provided with spherical protrusions 2, main grid silver wires 3, and auxiliary grid silver wires 4. The lower surface of the battery sheet 1 is also provided with a back electrode, and the reflector 6 is directly fixed on the lower surface of the battery sheet 1. On the surface, the light collecting plate 7 is directly fixed on the upper surface of the battery sheet 1, and the upper surface of the battery sheet 1 is also coated with an anti-reflection film, and the main grid silver wire 3 is directly connected with the auxiliary grid silver wire 4, The main grid silver wire 3 is also provided with a light-transmitting hole 5, and the light-collecting plate 7 is als...
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The invention provides an efficient solar cell, which comprises a cell, spherical bulges, main grid silver lines, auxiliary grid silver lines, light holes, a reflector sheet and a light collecting plate. The efficient solar cell adopts a structure of combining the U-shaped auxiliary grid silver lines and the main grid silver lines, so that electron adsorption rate is improved, and meanwhile, light transmission of the solar cell is improved, and solar energy utilization rate of the solar cell is improved. The spherical bulges and the light collecting plate structure are added on the surface of the solar cell, so that light transmittance of the solar cell is improved by changing light transmission direction, and solar energy utilization rate of the solar cell is improved; and by adding the reflector sheet to the back surface of the solar cell, the light rays penetrating through the solar cell can be reutilized, and furthermore, solar energy use efficiency of the solar cell is improved.
Description
【Technical field】 [0001] The invention relates to the technical field of solar cells, in particular to the technical field of high-efficiency solar cells. 【Background technique】 [0002] Solar cells are divided into monocrystalline cells and polycrystalline cells. The front motors of existing solar cells generally use comb-shaped electrodes, or a combination of parallel auxiliary grid lines and vertical main grid lines. Although the comb-shaped electrode has better light transmission, the electron absorption rate is low, and the positive electrode combined with the parallel sub-grid line and the vertical main grid line has a high electron absorption rate but poor light transmittance. Therefore, how to increase the light transmittance of the solar cell on the premise of increasing the electron adsorption rate is a major problem in improving the light energy utilization rate of the solar cell. 【Content of invention】 [0003] The purpose of the present invention is to solve ...
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Patent Timeline
Login to View More IPC IPC(8): H01L31/0224H01L31/054
CPCY02E10/52H01L31/022425H01L31/022433H01L31/054H01L31/0547
Inventor 赵华飞
Owner 浙江中晶新能源股份有限公司