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Composite membrane, preparation method thereof and solar cell assembly

A composite film and functional technology, applied in electrical components, chemical instruments and methods, circuits, etc., can solve the problems of inconvenient product transportation, installation and maintenance, non-compliance with the lightweight requirements of photovoltaic products, and hard and flexible glass texture. Achieve the effect of ensuring weather resistance, convenient transportation and installation, and reducing unit weight

Inactive Publication Date: 2015-10-21
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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Problems solved by technology

[0004] Although the above-mentioned traditional crystalline silicon solar cell module structure can ensure the power output for a long time, there are still some aspects that need to be improved. Lightweight requirements of photovoltaic products; on the other hand, glass is used as the front-end pac

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  • Composite membrane, preparation method thereof and solar cell assembly

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[0034] According to another aspect of the present invention, there is provided a method for preparing the above-mentioned composite film. The preparation method includes the following steps: separately preparing a water vapor barrier layer 10 and a weather-resistant functional monolayer; forming a bond on one surface of the weather-resistant monolayer Single layer, and the weather-resistant functional single layer and the bonding single layer constitute the functional unit layer; the functional unit layer is superimposed on the two opposite surfaces of the water vapor barrier layer 10, and the bonding single layer is attached to the surface of the water vapor barrier layer 10 , The bonding single layers located on both sides of the water vapor barrier layer 10 constitute the bonding layer 20, and the weather resistant functional single layers located on both sides of the water vapor barrier layer 10 constitute the weather resistant functional layer 30.

[0035] Wherein, the step o...

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Abstract

The invention provides a composite membrane, a preparation method thereof and a solar cell assembly. The composite membrane comprises a moisture blocking layer; a bonding layer covering two opposite surfaces of the moisture blocking layer; and a weather-proof functional layer covering the surface away from the moisture blocking layer of the bonding layer. According to the invention, the composite membrane comprising the moisture blocking layer, the bonding layer and the weather-proof functional layer is used for replacing current common glass as a front end encapsulating material of a solar cell assembly, so while the composite membrane is provided with high light penetration rate, the weather-proof function, anti-ultraviolet-aging performance and waterproof performance thereof are ensured; unit weight of the solar cell assembly is greatly reduced; and the solar cell assembly is lighter and easier to transport and install.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a composite film, a preparation method of the composite film and a solar battery module. Background technique [0002] Crystalline silicon solar cells are currently the most widely used type of photovoltaic product with the highest market share, and its market share reached 94% in 2014. Usually, the structure of a crystalline silicon solar cell module is composed of the following parts (see Chinese patent CN102244128A): (1) glass; (2) cells; (3) backplane. Among them, the glass is located on the front of the entire module, and the backplane is located on the back of the module, and the battery sheet is encapsulated between the two by resin glue (mainly EVA glue). Therefore, the glass and the back plate must have certain mechanical strength, weather resistance, water vapor barrier, ultraviolet resistance and aging resistance, and play a role in protecting and supporting th...

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Application Information

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IPC IPC(8): H01L31/048H01L31/18B32B27/08B32B27/16
CPCB32B27/08B32B27/16H01L31/0481H01L31/1804Y02E10/547Y02P70/50
Inventor 陈海力李守军于甄
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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