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Solar laminated modules with center-converging grid electrodes

A laminated module and solar energy technology, which is applied in the field of solar cells, can solve the problems of high cost, large consumption of silver paste and conductive adhesive, etc., achieve the effects of convenient operation, simple bonding and fixing methods, and solve the problem of leakage

Active Publication Date: 2018-04-24
滁州隆基乐叶光伏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are disadvantages of large consumption of silver paste and conductive adhesive and high cost.

Method used

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  • Solar laminated modules with center-converging grid electrodes
  • Solar laminated modules with center-converging grid electrodes
  • Solar laminated modules with center-converging grid electrodes

Examples

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Embodiment Construction

[0050] like Figure 4 and Figure 5 As shown, the cell is divided into several sub-cells. The auxiliary grid lines on the front of each sub-cell are divided into several groups. On the front of the sub-battery, each group of sub-grid lines 9 converges toward the center to converge current to their respective main electrode points 10, and each main electrode point 10 is distributed along one long side of the sub-cell. In one-to-one correspondence with the main electrode points 10 on the front of the battery, the electrodes on the back of the battery also exist in the form of main electrode points 17 . For the same sub-battery, the main electrode points 10 on the front side and the main electrode points 17 on the back side are respectively distributed along two opposite long sides.

[0051] like Image 6 and Figure 7 As shown, in the laminated assembly, the edges of adjacent sub-cells overlap, and the front main electrode point 10 of the first sub-cell 4 and the back main ...

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Abstract

The present invention provides a solar laminated module using a center-converging grid line electrode, including a main electrode point and a sub-grid line arranged on a battery sheet; the sub-grid line is a diverging pattern centered on the main electrode point The way that the periphery converges to the center gathers the current to the main electrode point. The invention reduces the area of ​​the front and back busbar electrodes of the solar cell, thereby reducing the consumption of silver paste and conductive glue. In addition, due to the optimization of the number and cross-sectional area of ​​the sub-grid lines, the photoelectric conversion efficiency of the laminated solar cells with this type of pattern is improved compared with the conventional laminated solar cells with parallel sub-grid lines.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a solar laminate assembly using centrally converged grid line electrodes. Background technique [0002] A solar cell is a device that uses the photovoltaic effect to directly convert light energy into direct current. According to different photoelectric conversion materials, solar cells include monocrystalline silicon, polycrystalline silicon, amorphous silicon thin films, cadmium telluride thin films, copper indium gallium tin thin films, gallium arsenide, fuel sensitization, perovskite, stacked layers, etc. . The most common of these are crystalline silicon solar cells, including monocrystalline silicon solar cells and polycrystalline silicon solar cells. Solar cells are usually in the shape of a sheet. The side that absorbs light energy and converts it into electricity is called the light-absorbing side or front side, and the other side is called the back sid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/0224H01L31/05H01L31/068
CPCH01L31/022433H01L31/022441H01L31/0508H01L31/0684Y02E10/547H01L31/0504
Inventor 郑直苗劲飞
Owner 滁州隆基乐叶光伏科技有限公司
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