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Solar battery cover film for and solar battery module manufactured using same

A technology of solar cells and cover films, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problems of complicated operations, many processes, high cost, etc., achieve high power generation efficiency, excellent processing performance, and improve the effect of light weight

Inactive Publication Date: 2013-05-08
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Furthermore, there is a problem that in the process of manufacturing a solar cell module by laminating the front protection material, encapsulation material, solar cell element, back protection material, etc., there are various components when stacking, and these components are stacked at predetermined positions. The work is complicated and the number of processes is large, the productivity is poor, and the cost becomes expensive

Method used

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  • Solar battery cover film for and solar battery module manufactured using same
  • Solar battery cover film for and solar battery module manufactured using same
  • Solar battery cover film for and solar battery module manufactured using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0237] 100 parts by mass of the resin composition (C) of the sealing resin layer 1 and γ-methacryloxypropyltrimethoxysilane (trade name: KBM-503 manufactured by Shin-Etsu Chemical Co., Ltd.) as a silane coupling agent were mixed with A 40mm A single-screw extruder was melt-kneaded at a set temperature of 200° C., and a corona-treated ETFE film (manufactured by Asahi Glass Co., Ltd., trade name: Aflex ETFE, thickness 25 μm, water vapor transmission rate: thickness 100μm7g / cm 2 Day) Lamination was performed with a rubber roll, and film formation was performed by quenching with a casting roll at 20° C., thereby obtaining a cover film for a sheet-shaped solar cell with a thickness of 0.525 mm by extrusion lamination. Table 2 shows the results of evaluation using this cover film.

Embodiment 2

[0239] In Example 1, except that the resin composition (C) was changed to the resin composition used in the preparation of the encapsulating resin layer 2, similarly to Example 1, a solar cell cover was obtained by extrusion lamination. membrane. Table 2 shows the results of evaluation using this cover film.

Embodiment 3

[0241] In Example 1, except that the resin composition (C) was changed to the resin composition used in the preparation of the encapsulation resin layer 3, similarly to Example 1, a solar cell cover was obtained by extrusion lamination. membrane. Table 2 shows the results of evaluation using this cover film.

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Abstract

Provided is a cover film for solar cells, with which solar cell modules are easy to produce, which comprises an encapsulant resin layer excellent in softness, transparency and heat resistance, and a weather-resistant layer excellent in weather resistance, moisture proofness, transparency and heat resistance and having high adhesiveness to the encapsulant resin layer, and is therefore excellent in handleability, and which is effective for reducing the weight of solar cell modules and for enhancing the impact resistance and the durability thereof; and also provided is a solar cell module produced by the use of the cover film for solar cells. Disclosed is production of a cover film for solar cells by laminating a weather-resistant layer or a surface protective layer, and an encapsulant resin layer comprising a resin composition that contains an ethylene-±-olefin random copolymer and an ethylene-±-olefin block copolymer both having specific thermal properties.

Description

technical field [0001] The present invention relates to a cover film that can be used as a protective member of a solar cell and is effective in reducing the weight, durability, and output of a solar cell, and a lightweight and highly durable solar cell module using the cover film. Background technique [0002] In recent years, awareness of environmental problems such as global warming has been increasing, and photovoltaic power generation has been expected particularly because of its cleanness and non-pollution. The solar cell constitutes the central part of a photovoltaic power generation system that directly converts the energy of sunlight into electricity. As its structure, generally, a plurality of solar battery elements (batteries) are connected in series or in parallel, and various packages are performed to protect the batteries to form a unit. The unit assembled into this encapsulation material is called a solar cell module, and generally speaking, it is a structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042B32B27/32C08L23/04
CPCY02E10/52H01L31/0481H01L31/048C08L2203/204C08L23/0815Y02E10/50C08L53/00H01L31/042B32B27/32C08L23/04
Inventor 赤池治谷口浩一郎大塚道子西冈润绫哲也宫下阳山本亮太
Owner DAI NIPPON PRINTING CO LTD