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Flexible double-sided solar cell module and preparation method thereof

A solar cell and flexible technology, applied in the field of solar cells, can solve the problems of low power generation efficiency of flexible solar cells, achieve the effect of improving overall competitiveness and increasing power generation efficiency

Pending Publication Date: 2021-09-17
CHINA ENERGY CONSERVATION & EMISSION REDUCTION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present disclosure provides a flexible double-sided solar cell assembly and its preparation method, which solves the technical problem of low power generation efficiency of the prior art flexible solar cell assembly

Method used

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  • Flexible double-sided solar cell module and preparation method thereof
  • Flexible double-sided solar cell module and preparation method thereof
  • Flexible double-sided solar cell module and preparation method thereof

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Embodiment 1

[0060] Such as figure 1 As shown, the embodiment of the present disclosure provides a flexible double-sided solar cell module, including a flexible substrate 11, a first power generation film layer 12, a second power generation film layer 13, a first packaging film layer 14, a flexible front plate 15, a second power generation film layer Two packaging film layers 16 and a flexible backplane 17 .

[0061] The flexible substrate 11 includes at least one of polyimide, stainless steel foil and glass with a thickness smaller than a first preset thickness threshold (ie, ultra-thin glass).

[0062] The flexible substrate 11 can withstand a high temperature of 300 degrees for a long time without deformation and embrittlement.

[0063] The total thickness of the first power generation film layer 12 is not more than 15 μm.

[0064] Such as figure 2 As shown, the first power generation film layer 12 includes a first back contact layer 121 , a first absorption layer 122 , a first buff...

Embodiment 2

[0081] On the basis of the first embodiment, this embodiment provides a method for preparing a flexible double-sided solar cell module. Figure 4 It is a schematic flowchart of a method for preparing a flexible double-sided solar cell module shown in an embodiment of the present disclosure.

[0082] Such as Figure 4 As shown, the preparation method of the flexible double-sided solar cell module of the present embodiment includes the following steps:

[0083] Step S101: if Figure 5 As shown, a flexible substrate 1121 is provided.

[0084] The flexible substrate 11 includes at least one of polyimide, stainless steel foil and glass with a thickness smaller than a first preset thickness threshold (ie, ultra-thin glass).

[0085] The flexible substrate 11 can withstand a high temperature of 300 degrees for a long time without deformation and embrittlement.

[0086] Step S102: if Figure 6 As shown, the first power generation film layer 12 is formed on the flexible substrate ...

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Abstract

The invention provides a flexible double-sided solar cell module and a preparation method thereof. The flexible double-sided solar cell module comprises a flexible substrate; a first power generation film layer which is positioned above the flexible substrate; a second power generation film layer which is positioned below the flexible substrate; a first packaging film layer located above the first power generation film layer; a flexible front plate which is positioned above the first packaging film layer; a second packaging film layer which is positioned below the second power generation film layer; and a flexible back plate which is positioned below the second packaging film layer. According to the flexible double-sided solar cell module, the characteristic of flexibility of the thin-film cell is fully exerted, double-sided power generation is realized, the power generation efficiency is greatly improved, and the overall competitiveness of the thin-film solar cell is improved.

Description

technical field [0001] The present disclosure relates to the technical field of solar cells, in particular to a flexible double-sided solar cell module and a preparation method thereof. Background technique [0002] Copper indium gallium selenide (CIGS) thin-film solar cells, as a representative of the second-generation photovoltaic technology thin-film solar cells, have been greatly developed in recent years from theoretical research to industrialization. [0003] Solar photovoltaic modules are mostly crystalline silicon modules and thin-film modules with glass cover plates, which are generally difficult to bend. In order to take advantage of the lightweight and bendable characteristics of thin-film photovoltaic products, flexible products have always been an important development direction for CIGS thin-film solar cells in basic research and industrial development. However, currently bendable flexible modules are limited to single-sided cells. Compared with bifacial cells...

Claims

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Application Information

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IPC IPC(8): H01L31/0445H01L31/048H01L31/049H01L31/068
CPCH01L31/0445H01L31/0684H01L31/0481H01L31/049Y02E10/547
Inventor 赵记赵剑张传升吴华
Owner CHINA ENERGY CONSERVATION & EMISSION REDUCTION CO LTD
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