A solar cell module with high photoelectric conversion efficiency

A technology of photoelectric conversion efficiency and solar cells, which is applied in the field of solar energy, can solve the problems of cumbersome inversion of series connection and reduce photoelectric conversion efficiency, etc., and achieve the effect of series connection

Inactive Publication Date: 2018-06-01
广东永明建设发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a solar cell module with high photoelectric conversion efficiency, so as to improve the problems of lower photoelectric conversion efficiency and cumbersome series flipping that occur when conductive materials are electrically connected to solar cells

Method used

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  • A solar cell module with high photoelectric conversion efficiency
  • A solar cell module with high photoelectric conversion efficiency
  • A solar cell module with high photoelectric conversion efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] See figure 1 As shown, the solar cell panel 1 includes a first-type solar cell 11 and a second-type solar cell 12, the front electrode 111 on the light-receiving surface of the first-type solar cell 11 is an n-type electrode, and the second-type solar cell 12 has a light-receiving surface front electrode 121 is a p-type electrode, the bus bar electrode 112 is formed on the front electrode of the first type solar cell, the bus bar electrode 122 is formed on the front electrode of the second type solar cell, and the first electrode is formed on the side of the bus bar electrode 112 of the first type solar cell 11 Finger structure 1121, the first electrode of the first type of solar cell 11 The finger structure 1121 is thicker than the thickness of the bus bar electrode 112 of the first type of solar cell 11, and the side of the second type of solar cell 12 that is close to the first type of solar cell 11 is connected The strip electrodes 122 form a second electrode groove...

Embodiment 2

[0031] See figure 2 with image 3As shown, the solar cell panel 1 includes two first-type solar cells 11 and two second-type solar cells 12 formed side by side, the first-type solar cells 11 and the second-type solar cells 12 are arranged alternately, and the first-type solar cells 11 The front electrode 111 on the light-receiving surface is an n-type electrode, the front electrode 121 on the light-receiving surface of the second type solar cell 12 is a p-type electrode, the bus bar electrode 112 is formed on the front electrode of the first type solar cell, and the bus bar electrode 112 is formed on the front electrode of the second type solar cell. A strip electrode 122, a first electrode finger structure 1121 is formed on one side of the bus bar electrode 112 of the first type solar cell 11, and the thickness of the first electrode finger structure 1121 of the first type solar cell 11 is smaller than that of the bus bar electrode 112 of the first type solar cell 11 Thickn...

Embodiment 3

[0033] See Figure 4 As shown, the solar cell panel 1 includes two first-type solar cells 11 and one second-type solar cell 12 formed side by side, the first-type solar cells 11 and the second-type solar cells 12 are alternately arranged, and the first-type solar cells 11 receive light The front electrode 111 of the surface is an n-type electrode, the front electrode 121 of the light-receiving surface of the second type of solar cell 12 is a p-type electrode, the bus bar electrode 112 is formed on the front electrode of the first type of solar cell, and the bus bar is formed on the front electrode of the second type of solar cell. An electrode 122, a first electrode finger structure 1121 is formed on one side of the bus bar electrode 112 of the first type of solar cell 11, and a first electrode groove structure 1122 is formed on the opposite side. The first electrode finger structure 1121 of the first type of solar cell 11 is thick and The groove thickness of the electrode gro...

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Abstract

The invention discloses a solar cell module with high photoelectric conversion efficiency. A solar cell panel comprises a first type of solar cell and a second type of solar cell, wherein the polarities of front electrodes of light receiving surfaces of the first type of solar cell and the second type of solar cell are opposite; a first electrode finger structure is formed at one side of the front electrode of the first type of solar cell, a second electrode groove structure is formed on the front electrode at one side, near the first type of solar cell, of the second type of solar cell, the first electrode finger structure is complementary with the second electrode groove structure, the finger length of the first electrode finger structure is greater than the groove length of the second electrode groove structure, and the first electrode finger structure of the first type of solar cell is electrically connected with the second electrode groove structure of the second type of solar cell. The solar cell module has the advantages that the problems of decreasing of photoelectric conversion efficiency and complicated serial turnover are solved when the conductive material is electrically connected with the solar cell, and the output power is flexibly improved.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a solar cell module. Background technique [0002] Solar cells have attracted public attention because of energy and environmental issues. A solar cell is a power generation device that uses the photoelectric effect to obtain photoelectric power. In a solar cell, electrons and holes collected by an n-type electrode and a p-type electrode are generated in forming a p-n junction semiconductor substrate, respectively. The solar cells are connected through interconnectors to form a solar cell module. The solar cell module can increase the voltage by connecting the solar cells in series, or increase the current by connecting the solar cells in parallel, thereby increasing the output power of the solar cell module. In the prior art, different solar cells are usually connected in parallel or in series through conductive materials. For solar cells whose electrodes are distributed ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01L31/02H01L31/042H01L31/05
CPCY02E10/50
Inventor熊年才
Owner广东永明建设发展有限公司