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Enhanced flexible solar cell assembly and packaging method thereof

A technology of solar cells and encapsulation methods, applied in the field of solar cells, can solve problems such as installation environment restrictions, expensive equipment, rigid materials without flexibility, etc., and achieve the effects of improved products, long service life, and reduced component weight

Active Publication Date: 2012-10-03
SHENZHEN TRONY SOLAR CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the equipment is expensive and the scope of application is greatly limited
[0003] Chinese invention patent CN200510030442.1 proposes a solar cell manufacturing method, using FR-4 epoxy glass fiber substrate as a lightweight crystalline silicon solar cell module on the backplane, but FR-4 epoxy glass fiber substrate is a rigid material that is not It is flexible, so that the installation environment of this component is limited

Method used

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  • Enhanced flexible solar cell assembly and packaging method thereof
  • Enhanced flexible solar cell assembly and packaging method thereof
  • Enhanced flexible solar cell assembly and packaging method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] In the enhanced flexible solar cell module of this embodiment, the front plate 1 and the back plate 5 are ethylene-tetrafluoroethylene copolymer (ETFE) of 444mm×862mm, the adhesive film 2 is EVA, and the flexible solar cell 3 is 414mm×832mm Amorphous silicon thin film battery, reinforcement plate 4 is 424mm×842mm alkali-free glass fiber fabric with EVA coating and impregnated with PTFE, reinforcement plate 4 is 10mm away from the edge of back plate 5, and the center is 15mm away from the edge of back plate 5 , processing a hole of φ10mm, and equipped with a grommet, when in use, the pull ring 6 is worn on the grommet, and the pull ring 6 is pulled by the pull rod 7 and tightened on the fixed beam 8.

Embodiment 2

[0040] The structure of the enhanced flexible solar cell module in this embodiment is the front plate 1, the adhesive film 2, the flexible solar cell 3, the adhesive film 2, the reinforcement plate 4, the adhesive film 2, and the back plate 5, wherein the front plate 1 and the back plate 5 is ethylene-tetrafluoroethylene copolymer (ETFE) of 444mm×862mm, adhesive film 2 is EVA, flexible solar cell 3 is amorphous silicon thin-film battery of 414mm×832mm, reinforcement plate 4 is Kevlar fiber grid of 424mm×842mm Cloth, the reinforcing plate 4 is 10mm away from the edge of the backboard 5, centered at 15mm from the edge of the backboard 5, a hole of φ10mm is processed, and an annular ring is installed.

[0041] When installing, connect 2 or 3 pieces of single-piece components with pull rings 6 at the short sides to form a component with a length of 1800-2500mm. Install multiple sets of identical components to form a large-area component array.

Embodiment 3

[0043] The enhanced flexible solar cell module of this embodiment adopts a flexible substrate to deposit an amorphous silicon power generation layer battery chip, and uses a flexible fluorine-containing weather-resistant film as the front film, and a flexible fluorine-containing or non-fluorine-containing weather-resistant film as the back sheet, Ethylene vinyl acetate copolymer (EVA) or polyvinyl butyral (PVB) or polyolefin as encapsulation film; both the front film and the back sheet have good adhesive strength, weather resistance, water vapor barrier, insulation, barrier Flammability and flexibility of film materials. The produced components have the excellent characteristics of being coilable and bendable, and the components can meet various installation environments, such as: curved surface structure, corner structure. The structure of the enhanced flexible solar cell module is the front plate 1, the adhesive film 2, the flexible solar cell 3, the adhesive film 2, the rei...

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Abstract

The invention relates to a structural piece of a flexible solar cell assembly with an enhanced back plate and a packaging process for the structural piece, belongs to the technical field of solar cells and aims to solve the problem that due to plastic deformation of the flexible solar cell assembly, the output voltage is reduced. The packaging method has the technical characteristics of preparing the front plate and the back plate of the cell assembly by using high polymer materials, fiber fabrics and enhanced fiber fabrics of which the thicknesses are 0.1 to 1.0mm; placing laminated sheets which are made of plain woven materials into a high temperature resistant vacuum sealing bag; vacuumizing the bag to seal the assembly; and heating and pressurizing the bag by using a high-pressure autoclave. The flexible solar cell assembly has the advantages that the weight is reduced greatly, the total weight of a mounting structure is 25 to 30Kg / square meters, the tensile strength of 0.5 percent of elongation variable is over 300MPa, and the flexible solar cell assembly with the flexibility is suitable for curved surface and other non-planar mounting structures.

Description

technical field [0001] The invention relates to a structural part of a backplane-enhanced flexible solar battery module and a packaging process thereof, belonging to the technical field of solar batteries. Background technique [0002] Flexible solar cell assembly packaging modules have been widely used in green environmental protection and energy-saving photovoltaic building materials and photovoltaic power generation systems. The first is its weight advantage. Under the same conditions, the flexible solar cell module together with the installation structure is lighter than the glass-based battery module, together with the installation and connection structure. The weight ratio is 3-6Kg / m 2 : 25-30Kg / m 2 . It has strong installation adaptability and low cost, and is suitable for installation on the roof of membrane structure buildings, such as stadiums and large parking lots. Flexible solar cell components generally require that the amount of deformation be less than 1%....

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/18B32B17/10
CPCY02E10/50Y02P70/50
Inventor 李毅李刚郭权发
Owner SHENZHEN TRONY SOLAR CORP
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