CN106024950A - Solar cell backboard with high adhesion rate - Google Patents

Solar cell backboard with high adhesion rate Download PDF

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Publication number
CN106024950A
CN106024950A CN201610596709.1A CN201610596709A CN106024950A CN 106024950 A CN106024950 A CN 106024950A CN 201610596709 A CN201610596709 A CN 201610596709A CN 106024950 A CN106024950 A CN 106024950A
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China
Prior art keywords
layer
weather
solar cell
resistant
base material
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Pending
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CN201610596709.1A
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Chinese (zh)
Inventor
黄新东
丁峰
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Wuxi Zhongjie Energy Technology Co Ltd
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Wuxi Zhongjie Energy Technology Co Ltd
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Priority to CN201610596709.1A priority Critical patent/CN106024950A/en
Publication of CN106024950A publication Critical patent/CN106024950A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H10F19/85—Protective back sheets
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/45—Wavelength conversion means, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

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  • Photovoltaic Devices (AREA)

Abstract

本发明涉及一种具有高粘合率的太阳能电池背板，包括PET基材，于所述PET基材的一侧通过粘结层连接耐候层，于所述PET基材的另一侧通过粘结层连接耐候粘结层，于各粘结层内还设置阻隔层，所述阻隔层由紫外线反射层与水汽阻隔层构成。本发明太阳能电池背板的耐候层材料为含氟耐候层，其具有成本低，环保性能好，其力学性能、粘结强度也比传统背板好，背板结构更为稳定，对整个太阳能支撑保护作用更加突出，其能达到高效无损耗反射光线的目的。紫外线反射层能吸收20～500nm的紫外线光，其能转换利用现有电池片无法转化的光波，拓宽对太阳能电光谱吸收转化范围，使太阳能电池的光转化效率提高。

The invention relates to a solar cell backsheet with high adhesion rate, comprising a PET base material, a weather-resistant layer is connected on one side of the PET base material through an adhesive layer, and a weather-resistant layer is connected on the other side of the PET base material through an adhesive layer. The knot layer is connected with the weather-resistant adhesive layer, and a barrier layer is also provided in each adhesive layer, and the barrier layer is composed of an ultraviolet reflection layer and a water vapor barrier layer. The material of the weather-resistant layer of the solar cell backboard of the present invention is a fluorine-containing weather-resistant layer, which has low cost and good environmental protection performance, and its mechanical properties and bonding strength are also better than those of the traditional backboard. The backboard structure is more stable and supports the entire solar energy. The protective effect is more prominent, and it can achieve the purpose of reflecting light efficiently and without loss. The ultraviolet reflective layer can absorb ultraviolet light of 20-500nm, which can convert and utilize light waves that cannot be converted by existing battery sheets, broaden the absorption and conversion range of solar electric spectrum, and improve the light conversion efficiency of solar cells.

Description

一种具有高粘合率的太阳能电池背板A solar cell backsheet with high adhesion rate

技术领域technical field

本发明涉及太阳能电池组件领域，尤其涉及一种具有高粘合率的太阳能电池背板。The invention relates to the field of solar cell components, in particular to a solar cell backboard with high adhesion rate.

背景技术Background technique

太阳能作为一种绿色环保、取之不尽的能源，无疑是取代传统火力发电的最佳选择，由于太阳能电池需要长期暴露在室外实用，所以光伏组件中的电池片需要加以保护，来防止大气中的水汽、氧气、紫外线等环境因素的影响和俯视。太阳能背板是整个太阳能电池的配件之一，主要起力学支撑和保护电池片免受环境因素渗透的作用，目前现有结构的太阳能背板中粘结剂的粘合强度较差，在长时间使用后易老化并无法阻抗紫外线。Solar energy, as a green and inexhaustible energy source, is undoubtedly the best choice to replace traditional thermal power generation. Since solar cells need to be exposed to the outdoors for a long time, the cells in photovoltaic modules need to be protected to prevent atmospheric pollution. The impact and overlooking of environmental factors such as water vapor, oxygen, and ultraviolet rays. The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the adhesive strength of the adhesive in the solar backsheet of the existing structure is poor. It is easy to age after use and cannot resist ultraviolet rays.

发明内容Contents of the invention

本申请人针对上述现有问题，进行了研究改进，提供一种具有高粘合率的太阳能电池背板，其能有效提高粘合剂的粘合强度，并具有较高的紫外线阻抗率。In view of the above-mentioned existing problems, the applicant has made researches and improvements to provide a solar battery back sheet with a high adhesion rate, which can effectively improve the adhesive strength of the adhesive, and has a higher ultraviolet resistance rate.

本发明所采用的技术方案如下：The technical scheme adopted in the present invention is as follows:

一种具有高粘合率的太阳能电池背板，包括PET基材，于所述PET基材的一侧通过粘结层连接耐候层，于所述PET基材的另一侧通过粘结层连接耐候粘结层，于各粘结层内还设置阻隔层，所述阻隔层由紫外线反射层与水汽阻隔层构成。A solar battery back sheet with a high adhesion rate, comprising a PET substrate, a weather-resistant layer is connected to one side of the PET substrate through an adhesive layer, and the other side of the PET substrate is connected through an adhesive layer The weather-resistant adhesive layer is also provided with a barrier layer in each adhesive layer, and the barrier layer is composed of an ultraviolet reflection layer and a water vapor barrier layer.

其进一步技术方案在于：Its further technical scheme is:

所述紫外线反射层的厚度为10～15微米，所述水汽阻隔层的厚度为5～10微米；The thickness of the ultraviolet reflection layer is 10-15 microns, and the thickness of the water vapor barrier layer is 5-10 microns;

所述耐候层的厚度为10～50微米；The thickness of the weather-resistant layer is 10-50 microns;

所述耐候粘结层的厚度为40～60微米。The thickness of the weather-resistant adhesive layer is 40-60 microns.

本发明的有益效果如下：The beneficial effects of the present invention are as follows:

本发明太阳能电池背板的耐候层材料为含氟耐候层，其具有成本低，环保性能好，其力学性能、粘结强度也比传统背板好，背板结构更为稳定，对整个太阳能支撑保护作用更加突出，其能达到高效无损耗反射光线的目的。紫外线反射层能吸收20～500nm的紫外线光，其能转换利用现有电池片无法转化的光波，拓宽对太阳能电光谱吸收转化范围，使太阳能电池的光转化效率提高。The material of the weather-resistant layer of the solar cell backboard of the present invention is a fluorine-containing weather-resistant layer, which has low cost and good environmental protection performance, and its mechanical properties and bonding strength are also better than those of the traditional backboard. The protective effect is more prominent, and it can achieve the purpose of reflecting light efficiently and without loss. The ultraviolet reflective layer can absorb ultraviolet light of 20-500nm, which can convert and utilize light waves that cannot be converted by existing battery sheets, broaden the absorption and conversion range of solar electric spectrum, and improve the light conversion efficiency of solar cells.

附图说明Description of drawings

图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.

其中：1、耐候层；2、粘结层；3、PET基材；4、耐候粘结层；Among them: 1. Weather-resistant layer; 2. Adhesive layer; 3. PET substrate; 4. Weather-resistant adhesive layer;

5、阻隔层。5. Barrier layer.

具体实施方式detailed description

下面结合附图，说明本发明的具体实施方式。The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

一种具有高粘合率的太阳能电池背板包括PET基材3，于PET基材3的一侧通过粘结层2连接耐候层1，于PET基材3的另一侧通过粘结层2连接耐候粘结层4，于各粘结层2内还设置阻隔层5，阻隔层由紫外线反射层与水汽阻隔层构成。紫外线反射层的厚度为10～15微米，水汽阻隔层的厚度为5～10微米。耐候层1的厚度为10～50微米。耐候粘结层4的厚度为40～60微米。A solar cell backsheet with high adhesion rate includes a PET base material 3, the weather-resistant layer 1 is connected to one side of the PET base material 3 through an adhesive layer 2, and the other side of the PET base material 3 is passed through an adhesive layer 2 The weather-resistant adhesive layer 4 is connected, and a barrier layer 5 is also provided in each adhesive layer 2, and the barrier layer is composed of an ultraviolet reflection layer and a water vapor barrier layer. The thickness of the ultraviolet reflection layer is 10-15 microns, and the thickness of the water vapor barrier layer is 5-10 microns. The weather-resistant layer 1 has a thickness of 10-50 microns. The thickness of the weather-resistant adhesive layer 4 is 40-60 microns.

本发明太阳能电池背板的耐候层材料为含氟耐候层，其具有成本低，环保性能好，其力学性能、粘结强度也比传统背板好，背板结构更为稳定，对整个太阳能支撑保护作用更加突出，其能达到高效无损耗反射光线的目的。紫外线反射层能吸收20～500nm的紫外线光，其能转换利用现有电池片无法转化的光波，拓宽对太阳能电光谱吸收转化范围，使太阳能电池的光转化效率提高。The material of the weather-resistant layer of the solar cell backboard of the present invention is a fluorine-containing weather-resistant layer, which has low cost and good environmental protection performance, and its mechanical properties and bonding strength are also better than those of the traditional backboard. The protective effect is more prominent, and it can achieve the purpose of reflecting light efficiently and without loss. The ultraviolet reflective layer can absorb ultraviolet light of 20-500nm, which can convert and utilize light waves that cannot be converted by existing battery sheets, broaden the absorption and conversion range of solar electric spectrum, and improve the light conversion efficiency of solar cells.

以上描述是对本发明的解释，不是对发明的限定，本发明所限定的范围参见权利要求，在不违背本发明的基本结构的情况下，本发明可以作任何形式的修改。The above description is an explanation of the present invention, not a limitation of the invention. For the limited scope of the present invention, refer to the claims. The present invention can be modified in any form without departing from the basic structure of the present invention.

Claims (4)

1. a solar cell backboard with high bonding rate, it is characterised in that: include PET base material (3), weathering layer (1) is connected in the side of described PET base material (3) by tack coat (2), in The opposite side of described PET base material (3) connects weather-proof tack coat (4), in respectively by tack coat (2) Also setting up barrier layer (5) in tack coat (2), described barrier layer is by ultraviolet reflecting layer and water vapor rejection Layer is constituted.
A kind of solar cell backboard with high bonding rate, its feature Being: the thickness of described ultraviolet reflecting layer is 10～15 microns, the thickness of described aqueous vapor separation layer is 5～10 microns.
A kind of solar cell backboard with high bonding rate, its feature It is: the thickness of described weathering layer (1) is 10～50 microns.
A kind of solar cell backboard with high bonding rate, its feature It is: the thickness of described weather-proof tack coat (4) is 40～60 microns.
CN201610596709.1A 2016-07-26 2016-07-26 Solar cell backboard with high adhesion rate Pending CN106024950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610596709.1A CN106024950A (en) 2016-07-26 2016-07-26 Solar cell backboard with high adhesion rate

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Application Number Priority Date Filing Date Title
CN201610596709.1A CN106024950A (en) 2016-07-26 2016-07-26 Solar cell backboard with high adhesion rate

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CN106024950A true CN106024950A (en) 2016-10-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101431108A (en) * 2008-12-09 2009-05-13 上海海优威电子技术有限公司 Novel solar battery backboard
CN101979247A (en) * 2010-09-02 2011-02-23 常熟市冠日新材料有限公司 Packaging back sheet for solar photovoltaic cell
CN103022192A (en) * 2012-10-18 2013-04-03 宁波长阳科技有限公司 High reflectance solar cell back-plane film, preparation method of high reflectance solar cell back-plane film, and solar cell
CN103646969A (en) * 2013-12-24 2014-03-19 江苏金瑞晨新材料有限公司 Acrylic acid ultraviolet light conversion coating for photovoltaic back film and preparation method of coating
CN103646980A (en) * 2013-12-24 2014-03-19 江苏金瑞晨新材料有限公司 Back film having ultraviolet conversion function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101431108A (en) * 2008-12-09 2009-05-13 上海海优威电子技术有限公司 Novel solar battery backboard
CN101979247A (en) * 2010-09-02 2011-02-23 常熟市冠日新材料有限公司 Packaging back sheet for solar photovoltaic cell
CN103022192A (en) * 2012-10-18 2013-04-03 宁波长阳科技有限公司 High reflectance solar cell back-plane film, preparation method of high reflectance solar cell back-plane film, and solar cell
CN103646969A (en) * 2013-12-24 2014-03-19 江苏金瑞晨新材料有限公司 Acrylic acid ultraviolet light conversion coating for photovoltaic back film and preparation method of coating
CN103646980A (en) * 2013-12-24 2014-03-19 江苏金瑞晨新材料有限公司 Back film having ultraviolet conversion function

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Application publication date: 20161012

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