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Photovoltaic module

A technology of photovoltaic modules and bonding parts, which is applied in the direction of photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of high cost of photovoltaic modules and low reliability of photovoltaic modules, and achieve improved connection reliability, low cost, and favorable output effect

Pending Publication Date: 2021-02-26
CSI CELLS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the related art, the contact force between the interconnection structure and the battery sheet is small, so that the reliability of the photovoltaic module is low, and the cost of the photovoltaic module is usually high

Method used

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Embodiment Construction

[0044] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary, and embodiments of the present invention are described in detail below.

[0045] Refer below Figure 1-Figure 12 A photovoltaic module according to an embodiment of the present invention is described. Photovoltaic modules can be heterojunctions (a special PN junction formed by depositing more than two layers of different semiconductor material films on the same base in sequence. These materials have different energy band gaps. They can be gallium arsenide and the like. compounds, or semiconductor alloys such as silicon-germanium) components. In the following description of the present application, the photovoltaic module is taken as an example for illustration. Of course, those skilled in the art can understand that the photovoltaic module can also be other types of modules, and is not limited to heterojunction modules.

[00...

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Abstract

The invention discloses a photovoltaic module. The photovoltaic module comprises: a plurality of battery pieces, wherein each battery piece comprises a battery piece body and a plurality of grid lines, and the plurality of grid lines are arranged on the battery piece body at intervals; and a plurality of interconnection structural members, which are arranged at intervals along the length directionof the grid lines, wherein each interconnection structural member extends along the arrangement direction of the plurality of the grid lines, each interconnection structural member is electrically connected with the plurality of the grid lines, each interconnection structural member is bonded with one battery piece through at least one conductive bonding member, and each conductive bonding memberis made of conductive paste containing at least one selected from nickel particles, nickel-coated carbon particles, silver-coated nickel particles, silver-coated carbon particles, silver-coated aluminum particles and silver-coated copper particles. According to the photovoltaic module provided by the invention, the connection firmness between the interconnection structural members and the batterypieces can be effectively improved, resistance can be reduced, current output is facilitated, and the cost of the whole photovoltaic module, such as a heterojunction module, can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of photovoltaic manufacturing, in particular to a photovoltaic module. Background technique [0002] When making photovoltaic modules, it is usually necessary to use interconnecting structural members such as ribbons to weld and connect multiple battery sheets into battery strings, then lay multiple battery strings between the glass and the back plate and connect them in series with bus bars, and then perform lamination, Framed. In the related art, the contact force between the interconnection structure and the cells is small, so that the reliability of the photovoltaic module is low, and the cost of the photovoltaic module is usually high. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a photovoltaic module, the cost of which is relatively low, and the rel...

Claims

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Application Information

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IPC IPC(8): H01L31/0224H01L31/05
CPCH01L31/022433H01L31/0508Y02E10/50
Inventor 许涛邓士锋
Owner CSI CELLS CO LTD
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