Solar cell module

一种太阳能电池、反应型的技术，应用在光伏模块、光伏模块的支撑结构、电路等方向，能够解决无法利用紫外光能量、变色、背面保护片劣化等问题，达到输出难以降低、挤出成型性优异、交联特性优异的效果

Inactive Publication Date: 2015-01-28
MITSUI CHEM TOHCELLO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the energy of ultraviolet light cannot be utilized
[0007] On the other hand, if there is no ultraviolet absorber, the ultraviolet rays contained in sunlight will reach the back protection sheet, which will cause deterioration and discoloration of the back protection sheet

Method used

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  • Solar cell module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] As a composition for the light-receiving side sealing sheet (B), 2,5-dimethyl-2,5-bis 0.1 parts by mass of (tert-butyl peroxy)hexane, 0.4 parts by mass of tert-butyl peroxy-2-ethylhexyl carbonate, 1.0 parts by mass of triallyl isocyanurate, γ-methacryloyloxy 0.2 parts by mass of propyltrimethoxysilane was used to obtain a resin composition.

[0079] The obtained resin composition was extruded into a sheet (also called "precursor sheet for light-receiving side sealing) having a thickness of about 600 μm through an extruder equipped with a T-die. "). The transmittance of the sheet body of the composition for light-receiving side sealing sheet (B) at a wavelength of 300 nm was 67%.

[0080] As the composition for the back side sealing sheet (D), 2,5-dimethyl-2,5-bis 0.1 parts by mass of (tert-butyl peroxy)hexane, 0.4 parts by mass of tert-butyl peroxy-2-ethylhexyl carbonate, 1.0 parts by mass of triallyl isocyanurate, γ-methacryloyloxy 0.2 parts by mass of propyltrimet...

Embodiment 2

[0087] Except that the ultraviolet absorber was replaced with 2-(4-allyloxy-2-hydroxyphenyl)-2H-benzotriazole, the same procedure as in Example 1 was carried out to produce a back side sealing sheet (D) Tablets of the composition. Table 1 shows the evaluation results of the diffusion of the ultraviolet absorber similar to Example 1 using the sheet body of the composition for the sheet (D) for back side sealing.

Embodiment 3

[0089] Except that the ultraviolet absorber was replaced with 2-(4-acryloyloxy-2-hydroxyphenyl)-2H-benzotriazole, the back side sealing sheet (D) was produced in the same manner as in Example 1. Tablets of the composition. Table 1 shows the evaluation results of the diffusion of the ultraviolet absorber similar to Example 1 using the sheet body of the composition for the sheet (D) for back side sealing.

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PUM

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Abstract

Provided is a solar cell module wherein a rear surface protection sheet has excellent long-term durability, and transmissivity of ultraviolet that reaches the solar cell is retained for a long time. This solar cell module is configured by laminating a front surface protection sheet, a light receiving-side sealing sheet, a solar cell element, a rear surface-side sealing sheet, and a rear surface protection sheet in this order. The solar cell module is characterized in that the light receiving-side sealing sheet has a transmissivity of 50 % or more with respect to light having a wavelength of 300 nm, and the rear surface-side sealing sheet contains a reactive ultraviolet absorbent.

Description

technical field [0001] The invention relates to a solar cell module. Background technique [0002] As global environmental problems, energy problems, and the like are serious, attention has been drawn to solar cells as a means of generating energy that is pure and free from exhaustion. When a solar cell is used outdoors such as a roof portion of a building, it is usually used in the form of a solar cell module. [0003] A solar cell module is generally manufactured in the following order. First, crystalline solar cells made of polycrystalline silicon, single crystal silicon, etc., or thin-film solar cells formed by forming amorphous silicon, crystalline silicon, etc. into a very thin film of several μm on a substrate such as glass are manufactured. Next, in order to obtain a crystalline solar cell module, the solar cell module protective sheet (surface protection sheet) / light-receiving side solar cell sealing sheet / crystalline solar cell unit / rear side solar cell sealing s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048
CPCC08K5/134C08L23/08C08K5/3475Y02E10/50H01L31/048H02S20/23C09K3/10Y02B10/12H01L31/0481B32B17/10036B32B17/10678B32B17/10788H01L31/049Y02B10/10
Inventor 室伏贵信
Owner MITSUI CHEM TOHCELLO INC
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