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Preparation method of glass for packaging solar battery

A technology for solar cells and glass, which is applied in the field of preparation of glass for solar cell encapsulation, can solve problems such as difficult cleaning, easy dirt on the surface of glass plates, and formation of dirt, and achieves the effects of long-term self-cleaning and improved visible light transmittance

Active Publication Date: 2013-08-14
常州合天电力设备有限公司
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Problems solved by technology

[0002] Since the workplaces of solar cells are mostly installed outdoors in harsh environments, the surface of the glass plate used for solar cell module packaging is easily dirty, and it is difficult to clean after being dirty. Therefore, while improving the light transmittance of the photovoltaic glass plate used for solar cell module packaging, It is also necessary to make the surface of the glass plate used for solar cell module packaging easy to clean after contamination
The contact solution between ordinary glass and water is 30-40 degrees, so the glass is easy to form water droplets, and the water droplets are not easy to slip off. During the drying process of the water droplets, they are also very easy to absorb dust in the air, and form water marks after drying. Over time, dirt will form and cause pollution
The current solar cell packaging glass does not have a "self-cleaning" function, and the visible light transmittance is not high

Method used

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Embodiment Construction

[0013] A preparation method of glass for solar cell encapsulation, comprising the following steps:

[0014] a. SiO 2 / TiO 2 Preparation of composite sol

[0015] Weigh a certain amount of industrial grade TiCl 4 , add deionized water to make a solution with a concentration of 5mol / L, and after standing for 24 hours, dilute with deionized water to a concentration of 0.5mol / L to obtain a clear solution, then add chemically pure ammonia water to adjust the pH value to 3~ 6. Obtain a white turbid liquid. After suction filtration, wash the obtained precipitate with deionized water for 6 to 8 times, then use deionized water to prepare the precipitate into a thin slurry, and then drop in hydrogen peroxide until the precipitate is dissolved, and an orange-red color is obtained. Clarify the transparent solution, then heat the solution at 95°C for 3 to 6 hours while stirring to obtain a neutral yellow transparent solution; take the tetraethyl orthosilicate solution and dilute it with...

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Abstract

The invention relates to a preparation method of glass for packaging a solar battery. The preparation method comprises the following steps of: firstly, preparing a SiO2 / TiO2 composite sol; secondly, cleaning a glass substrate; and finally, coating a film of the composite sol on the glass substrate. The glass prepared by the method for packaging the solar battery has a long-lasting 'self-cleaning'function, and the visible light transmission rate of the glass is greatly improved compared with that of the conventional glass for packaging the solar battery.

Description

technical field [0001] The invention relates to a method for manufacturing a solar cell module, in particular to a method for preparing a glass for solar cell packaging. Background technique [0002] Since the workplaces of solar cells are mostly installed outdoors in harsh environments, the surface of the glass plate used for solar cell module packaging is easily dirty, and it is difficult to clean after being dirty. Therefore, while improving the light transmittance of the photovoltaic glass plate used for solar cell module packaging, It is also necessary to make the surface of the glass plate used for solar cell module packaging easy to clean after contamination. The contact solution between ordinary glass and water is 30-40 degrees, so the glass is easy to form water droplets, and the water droplets are not easy to slip off. During the drying process of the water droplets, they are also very easy to absorb dust in the air, and form water marks after drying. Over time, d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/23
Inventor 袁宁一王秀琴陈智慧
Owner 常州合天电力设备有限公司
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