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Solar cell module and manufacture method thereof

A technology of solar cells and solar cells, which is applied in the field of solar energy, can solve problems such as light and shade of solar cell components, achieve the effect of improving light and dark phenomena, reducing brightness differences, and ensuring high matching

Inactive Publication Date: 2018-11-02
ZHEJIANG JINKO SOLAR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a solar cell assembly and a manufacturing method thereof to solve the problem of light and dark phenomena in existing solar cell assemblies such as batteries.

Method used

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  • Solar cell module and manufacture method thereof
  • Solar cell module and manufacture method thereof
  • Solar cell module and manufacture method thereof

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Embodiment Construction

[0044] As mentioned in the background technology, solar cell modules often have different degrees of light and dark phenomena, that is, the phenomenon of uneven luminous brightness between cells. Alternatively, the solar cells are grouped by first grouping according to the operating current and then grouping according to the efficiency, so as to improve the brightness and darkness of the solar cell components. However, the light and dark phenomenon of new solar cell modules such as cells such as half sheets or laminated sheets have not been significantly improved.

[0045] The inventors found that this is because the open circuit voltage basically does not change with the increase or decrease of the cell area after cutting the solar cells that are grouped first by efficiency and then by open circuit voltage or by current and then by efficiency into multiple blocks and made into modules. However, the short-circuit current and battery efficiency will be inconsistent due to the b...

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Abstract

The invention provides a solar cell module and a manufacture method thereof, comprising: cutting a solar cell piece into a plurality of blocks; testing the electric properties of each block to obtainthe efficiency and the maximum working current of each block; grouping the plurality of bocks according to the efficiencies of the blocks and a plurality of predetermined efficiency intervals to obtain a plurality of first block groups; grouping a plurality of blocks in each first block group according to the maximum working currents of the blocks and a plurality of predetermined current intervalsto obtain a plurality of second block groups; and manufacturing a solar cell module by using blocks in the same second block group. The current difference between blocks in the same solar cell modulecan be reduced, thus not only reducing the luminance difference between the blocks and improving the luminance of the module, but also ensuring that the parameters of the electric properties of the blocks are highly matched, so as to reduce the packaging loss of the module and improve the power output of the module.

Description

technical field [0001] The invention relates to the technical field of solar energy, and more specifically, relates to a solar battery module and a manufacturing method thereof. Background technique [0002] With the increasingly tense energy supply and increasingly prominent environmental problems, the development of new energy has become an important energy strategic policy for all countries. Among them, solar energy is an important new type of clean energy, a solar cell module is a photoelectric conversion device for effectively utilizing solar energy, and a solar cell sheet is an important part of a solar cell module for photoelectric conversion. [0003] In the existing crystalline silicon solar cell modules, the solar cells with the same efficiency range, that is, the conversion efficiency in the same range, are packaged together. However, with the continuous breakthrough of battery technology bottlenecks and the continuous improvement of battery electrical performanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/042
CPCH01L31/042H01L31/1804Y02E10/547Y02P70/50
Inventor 朱加明郭志球王娟金浩陶春华方辉尹家祥
Owner ZHEJIANG JINKO SOLAR CO LTD
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