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A production process of special cover glass for solar thin film battery

A solar film and cover glass technology, applied in glass tempering, glass manufacturing equipment, applications, etc., can solve the problems of poor weather resistance, short effective use time, inconvenient production operation, etc., to meet the transmittance requirements, improve the resistance Aging performance and the effect of improving power generation efficiency

Active Publication Date: 2021-12-24
CNBM HEFEI NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally, the coating needs to be added with a curing agent before use, and the effective use time of the coating with the curing agent is short, so it must be adjusted as much as it is used, and if the printing is suspended during the production process, because the coating curing agent is cured on the screen, it will not be effective. Timely cleaning may lead to the scrapping of the stencil, which will bring great inconvenience to the production operation
Moreover, there are problems such as poor adhesion and poor weather resistance between traditional coatings and glass.
[0005] The anti-reflection coating on the front of the glass is only 4H in pencil hardness, so it is not suitable for direct contact with the roller table of the production line, especially when the temperature is above 600°C, it will cause damage to the surface film layer and affect the anti-reflection performance of the glass; while the other side needs to be silk-screened. Black paint, the coating is in a liquid state at a high temperature above 600 ° C, has good fluidity, and is not suitable for contact with the conveyor roller table, which will also cause damage to the coating and mutual contamination, directly affecting the appearance quality and inner quality of the product quality

Method used

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  • A production process of special cover glass for solar thin film battery
  • A production process of special cover glass for solar thin film battery
  • A production process of special cover glass for solar thin film battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of coating solution:

[0029] Add 72kg of isopropanol, 0.09kg of glacial acetic acid, 0.28kg of nitric acid, and 8.1kg of deionized water into the three-necked flask in sequence, then raise the temperature to 40°C, and control the pH=2 to 3; then add 20.8kg of tetraethylorthosilicate Esters, 21.4kg methyltriethoxysilane, 0.47kg KH560, 0.24kg KH570 were mixed uniformly according to the molar ratio of 1:1.2:0.02:0.01 and then added to the three-necked flask. After the addition, the temperature was raised to 80°C and stirred for 18h Then adjust the temperature to 40°C and stir for 72 hours to obtain a mixed solution; add 7.4kg of amino resin to the mixed solution for mixing, age at 50°C for 48 hours, and dilute the mixed solution to a solid content of 3% with isopropanol. That is, the coating solution is obtained.

[0030] Preparation of link material:

[0031] Put 55kg of isopropanol, 0.2kg of acid catalyst (composed of glacial acetic acid and nitric acid in...

Embodiment 2

[0037] Preparation of coating solution:

[0038] Add 72kg of isopropanol, 0.09kg of glacial acetic acid, 0.28kg of nitric acid, and 8.1kg of deionized water into the three-necked flask in sequence, then raise the temperature to 40°C, and control the pH=2 to 3; then add 20.8kg of tetraethylorthosilicate Esters, 21.4kg methyltriethoxysilane, 0.47kg KH560, 0.24kg KH570 were mixed uniformly according to the molar ratio of 1:1.2:0.02:0.01 and then added to the three-necked flask. After the addition, the temperature was raised to 80°C and stirred for 18h Then adjust the temperature to 40°C and stir for 72 hours to obtain a mixed solution; add 7.4kg of amino resin to the mixed solution for mixing, age at 50°C for 48 hours, and dilute the mixed solution to a solid content of 3% with isopropanol. That is, the coating solution is obtained.

[0039] Preparation of link material:

[0040] Put 55kg of isopropanol, 0.2kg of acid catalyst (composed of glacial acetic acid and nitric acid wi...

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Abstract

The invention discloses a production process of a special cover glass for solar thin film batteries, and relates to the technical field of solar thin film battery processing. The upper surface of ultra-white photovoltaic glass is coated with a coating solution by a sol-gel roller coating method, and then cured, tempered and sintered. Afterwards, an anti-reflection film is formed; on the lower surface of the ultra-white photovoltaic glass, black ink is screen-printed, and a coating is formed after curing; the present invention carries out anti-reflection film treatment on the upper surface of the glass by gel sol roller coating, and the lower surface Screen printing is used to coat high-density, high-coverage black paint, and the prepared cover glass not only meets the requirements of high transmittance, but also meets the requirements of anti-ultraviolet rays and improving the anti-aging performance of components.

Description

Technical field: [0001] The invention relates to the technical field of solar thin film battery processing, in particular to a production process of a special cover glass for solar thin film batteries. Background technique: [0002] The cover glass of the solar photovoltaic cell module can fully transmit solar energy to facilitate the absorption of solar energy by the silicon crystal plate, and protect the underlying silicon crystal plate from damage by the external cold and snow weather with its own strength, which makes the solar photovoltaic The cover glass of battery components can be applied to various specifications of monocrystalline silicon and polycrystalline silicon solar cell components and power station intelligent control systems, intelligent photovoltaic water pump systems, wind and solar hybrid systems, military digital photovoltaic power supplies, photovoltaic communication signal systems, multi-functional solar energy users Power supply and anti-low temperat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/34C03C17/00C03B27/012C09D183/04C09D161/20C09D11/03C09D11/102
CPCC03C17/34C03C17/002C03C17/009C03B27/012C09D183/04C09D11/03C09D11/102C03C2218/118C03C2218/119C03C2218/32C03C2218/365C03C2217/40C03C2217/70C08L61/20
Inventor 夏善慧陈汉舟章榕张加玉王伟
Owner CNBM HEFEI NEW ENERGY CO LTD
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