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Laminated packaging film for solar cell and solar cell module with packaging film

A solar cell and packaging film technology, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problems of low long-term reliability and low volume resistivity of components, and achieve favorable promotion, high water vapor barrier properties, and low moisture content. rate effect

Active Publication Date: 2016-06-01
CYBRID TECHNOLOGIES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, although ordinary EVA packaging materials for solar cells have good packaging functions, the water vapor transmission rate is very high (> 45g / m 2 *24h), volume resistivity (10 13 Ω) is low, and the long-term reliability of components is not high

Method used

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  • Laminated packaging film for solar cell and solar cell module with packaging film
  • Laminated packaging film for solar cell and solar cell module with packaging film
  • Laminated packaging film for solar cell and solar cell module with packaging film

Examples

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Effect test

Embodiment 1

[0022] This embodiment provides a laminated packaging film for solar cells, which has a thickness of 450 μm, such as figure 1 As shown, it includes a first resin layer 1 and a second resin layer 2, the first resin layer 1 is covered on the upper surface of the second resin layer 2, and the materials of the first resin layer 1 and the second resin layer 2 are co-extruded form. The thickness of the first resin layer 1 is 150 μm, and the thickness of the second resin layer 2 is 300 μm. The first resin layer 1 is an EVA layer (TPC company, melt index 20g / 10min), and the second resin layer 2 is a POE layer (manufactured by DOW Company, melt index 18g / 10min).

Embodiment 2

[0024] This embodiment provides a kind of laminated packaging film for solar cells, which is basically the same as the packaging film in Example 1, except that the first resin layer 1 is an EVA layer (TPC company, melt finger 30g / 10min), The second resin layer 2 is a POE layer (manufactured by DOW, melt index 30g / 10min).

Embodiment 3

[0026] This embodiment provides a kind of laminated packaging film for solar cells, which is basically the same as the packaging film in Example 2, except that the first resin layer 1 is an EVA layer (TPC company, melt finger 5g / 10min), The second resin layer 2 is a POE layer (manufactured by DOW Company, melt index 5g / 10min).

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Abstract

The invention relates to a laminated packaging film for a solar cell and a solar cell module with the packaging film. The laminated packaging film comprises a first resin layer and a second resin layer formed on any surface of the first resin layer, wherein the first resin layer is a poly(ethylene-vinyl acetate) layer or a polyvinyl butyral layer or an ionomer layer or a polyurethane layer, and the second resin layer is a polyolefin elastomer layer. As the first resin layer and the second resin layer are arranged in a stacked mode and made of different materials, and the second resin layer is a polyolefin elastomer layer, the packaging film has a good packaging function, and meanwhile the packaging film can be endowed with a high vapor barrier property, a low moisture ratio, high insulativity, PID resistance and other functions; in addition, the packaging film is low in cost and easy to popularize.

Description

technical field [0001] The invention relates to a component of a solar cell, in particular to a laminated packaging film for a solar cell and a solar cell module using the packaging film. Background technique [0002] The general structure of solar cells is: glass / encapsulation film / cell sheet / encapsulation film / back sheet. Solar cells are mainly used outdoors. The encapsulation material in the module needs to have the following functions: the flexibility and impact resistance that can encapsulate and protect the solar cell components, the heat resistance of the solar cell components when they are heated, and the solar energy can effectively reach the solar energy. High transmittance, durability, dimensional stability, flame retardancy, insulation, water vapor barrier, etc. of battery components. [0003] In some high-humidity environments, the performance of the water vapor barrier rate of the battery backside material (encapsulation material and backsheet) in the solar ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08H01L31/048
CPCY02E10/50B32B27/08H01L31/048
Inventor 王磊陈洪野宇野敬一吴小平
Owner CYBRID TECHNOLOGIES INC
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