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Solar cell panel end-sealing composition, solar cell panel end-sealing sheet, and solar cell panel

A solar cell and end sealing technology, which is applied to circuits, photovoltaic power generation, electrical components, etc., can solve problems such as poor workability, achieve the effects of preventing the reduction of power generation efficiency, and excellent adhesion and storage stability

Inactive Publication Date: 2014-10-15
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when using a liquid sealing material, it is necessary to adjust to a certain thickness and width so that the liquid sealing material does not protrude from the end, so workability is poor.

Method used

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  • Solar cell panel end-sealing composition, solar cell panel end-sealing sheet, and solar cell panel
  • Solar cell panel end-sealing composition, solar cell panel end-sealing sheet, and solar cell panel
  • Solar cell panel end-sealing composition, solar cell panel end-sealing sheet, and solar cell panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～11 and comparative example 1～6

[0152] According to the formula in Table 1, put the ingredients in Table 1 except the catalyst into the mixing roller (speed: front roller 20rpm, rear roller 15rpm, gap 1-2mm), and knead at 140°C for 18 minutes. Prepare the first kneaded product (the first kneading process).

[0153] Next, cool the prepared first kneaded product to below 80°C, then add the catalysts listed in Table 1 to the first kneaded product according to the formula in Table 1, knead for 3 minutes, and prepare the second kneaded product (Sealing compositions of Examples and Comparative Examples) (second kneading process). In addition, in Comparative Examples 3 and 6, the second kneading step was not implemented.

[0154] Next, the resulting sealing composition was compressed using a press at a pressing temperature of 80° C., a pressing pressure of 50 kPa, and a pressing time of 5 minutes to produce sealing sheets of Examples and Comparative Examples ( sealing material, the thickness is 0.5mm).

[0155] ...

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Abstract

The invention relates to a solar cell panel end-sealing composition, a solar cell panel end-sealing sheet, and a solar cell panel. The solar cell panel end-sealing composition contains a butyl rubber, a polyolefin resin having a silyl group, and a catalyst. The catalyst is at least one of a metal oxide, a metal hydroxide, and a metal complex of a transition element and the solar cell panel end-sealing composition has a flow viscosity at 140 DEG C of 500 Pas or more and 8000 Pas or less.

Description

technical field [0001] The present invention relates to a solar cell panel end sealing composition, a solar cell panel end sealing sheet, and a solar cell panel. Specifically, it relates to a sealing composition used for sealing a solar cell panel, and the sealing composition A solar cell panel end sealing sheet formed of a material and a solar cell panel whose ends are sealed with the solar cell panel end sealing sheet. Background technique [0002] In a solar cell panel, a solar cell element is arranged between two opposing glasses, and the gap between the glasses is filled with a sealing resin. Furthermore, in order to prevent fluids such as water and moisture from penetrating into the sealing resin and the solar cell element, a sealing material is provided at the peripheral end of the sealing resin (edge ​​of the glass) between the two sheets of glass. [0003] This sealing material is generally in a liquid state, and therefore, the solar cell panel is sealed by applyin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/22C09J123/00C09J11/04C09J11/06C09J7/00H01L31/048
CPCH01L31/0481Y02E10/50
Inventor 林阳平桐山招大浅野一正小濑真一郎白井雅人伊关亮
Owner NITTO DENKO CORP
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