Densely-arranged solar cell string and preparation method, module and system thereof

A technology of solar cells and solar cells, which is applied in the field of solar cells, can solve certain problems such as mechanical strength and connection reliability, and achieve the effects of increasing power, saving consumption, and increasing utilization area

Active Publication Date: 2017-07-04
TAIZHOU ZHONGLAI PHOTOELECTRIC TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the disadvantages are: 1) In the scheme disclosed by this patent, the main grid lines are arranged perpendicular to the series connection direction of the batteries, and the current must pass through the thin grid lines and

Method used

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  • Densely-arranged solar cell string and preparation method, module and system thereof
  • Densely-arranged solar cell string and preparation method, module and system thereof
  • Densely-arranged solar cell string and preparation method, module and system thereof

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[0030] The present invention will be described in detail below in conjunction with the embodiments and the drawings. It should be pointed out that the described embodiments are only intended to facilitate the understanding of the present invention and do not have any limiting effect on it.

[0031] See Figure 1 to Figure 6 As shown, the structure and preparation method of a densely arranged solar cell string provided by this embodiment includes the following steps:

[0032] (1), making solar cells: such as figure 1 As shown, the front electrode structure of the cell adopts an H-shaped electrode design. The main grid 11 and the thin grid line 10 are perpendicular to each other. The main grid 11 adopts a segmented design. One end of the segmented main grid is provided with a welding point for the battery. The electrical connection between the main grid 11 is 3-15, the width is 100-1200um, and there is a battery cutting area 12, which is perpendicular to the main grid 11, and the wid...

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Abstract

The invention relates to a densely-arranged solar cell string and a preparation method, module and system thereof. The preparation method mainly comprises the following steps of fabricating a solar cell piece, forming H-shaped electrodes on a front surface and a back surface of the cell piece, wherein a main gate is a segmental electrode, and a welding point is arranged at one end of the main gate; printing strip-shaped hot melt glue at a position of the welding point along a direction perpendicular to the main gate, wherein the hot melt glue is exposed out of the welding point; cutting the cell piece along a battery cutting region so that cell piece is cut into a plurality of small cell pieces; coating a conductive adhesive or soldering paste at the position of the welding point of the main gate on a front surface of each small cell piece; overlapping the welding point of the main gate on a back surface of one of the small cell pieces with the welding point of the main gate on the front surface of the other one small cell piece, and performing heating so that the two small cell pieces are electrically connected by the conductive adhesive or the soldering paste; and sequentially connecting the plurality of small cell pieces to form the solar cell string. The preparation method has the beneficial effects that the utilization area of the cell pieces in an effective region of the module is expanded, and the module power is improved.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a densely arranged solar cell string, a preparation method, components and a system thereof. Background technique [0002] A solar cell module is a photovoltaic power generation unit that converts light energy into electrical energy. Lower production costs and higher energy conversion efficiency have always been the goals pursued by photovoltaic modules. For the current conventional solar cell components, the cells in the component are welded with ribbons to connect the positive electrode of one cell to the negative electrode of another cell to form a solar cell string, and then the front layer material, packaging material, solar cell string, packaging material, The back layer material is laminated to form a solar cell module. In the process of connecting cells in series, since the positive and negative electrodes of the cells are on both sides of the battery, welding needs ...

Claims

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Application Information

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IPC IPC(8): H01L31/0224H01L31/05H01L31/18
CPCH01L31/022433H01L31/0504H01L31/1876Y02E10/50
Inventor 林建伟刘志锋季根华刘勇
Owner TAIZHOU ZHONGLAI PHOTOELECTRIC TECH CO LTD
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