Backboard material for photovoltaic cell module

A photovoltaic cell and module technology, applied in photovoltaic power generation, electrical components, circuits, etc., can solve the problems of pinholes, damage to photoelectric conversion units, etc., so as to reduce pinholes, reduce costs, and prevent the electrochemical reaction of photoelectric conversion units. Effect

Inactive Publication Date: 2019-05-28
山东天拓电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the backplane of the photovoltaic cell module uses pure aluminum metal sheet, and when the thickness of pure aluminum metal sheet is less than 20um, there is a problem of pinholes, which will seriously damage the photoelectric conversion unit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Backsheet material for photovoltaic cell module, including the following components in parts by mass: 5 parts of iron, 10 parts of chromium, 1 part of vanadium, 50 parts of aluminum, and 10 parts of magnesium. The thickness of the back sheet material of the photovoltaic cell module is 15-20um.

[0011] The backsheet material obtained through the above solution was processed into a 15-micron sheet, and it was found through electron microscope observation that there were few pinholes, which could fully meet the requirements of photovoltaic elements.

Embodiment 2

[0012] Example 2: The back sheet material for photovoltaic cell modules includes the following components in parts by mass: 10 parts of iron, 15 parts of chromium, 10 parts of vanadium, 70 parts of aluminum, and 30 parts of magnesium. The thickness of the back sheet material of the photovoltaic cell module is 15-20um.

[0013] The backsheet material obtained through the above solution was processed into a 15-micron sheet, and it was found through electron microscope observation that there were few pinholes, which could fully meet the requirements of photovoltaic elements.

Embodiment 3

[0014] Example 3: Backsheet material for photovoltaic cell module, including the following components in parts by mass: 6 parts of iron, 11 parts of chromium, 4 parts of vanadium, 55 parts of aluminum, and 15 parts of magnesium. The thickness of the back sheet material of the photovoltaic cell module is 15-20um.

[0015] The backsheet material obtained through the above solution was processed into a 15-micron sheet, and it was found through electron microscope observation that there were few pinholes, which could fully meet the requirements of photovoltaic elements.

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Abstract

The invention belongs to the technical field of photovoltaic power generation, and relates to a backboard material for a photovoltaic cell module. The backboard material comprises the following components in parts by mass: 5-10 parts of iron, 10-15 parts of chromium, 1-10 parts of vanadium, 50-70 parts of aluminum and 10-30 parts of magnesium. Preferably, the backboard material for the photovoltaic cell module comprises the following components in parts by mass: 6-8 parts of iron, 11-13 parts of chromium, 4-8 parts of vanadium, 55-65 parts of aluminum and 15-25 parts of magnesium. Preferably,the backboard material for the photovoltaic cell module comprises the following components in parts by mass: 7 parts of iron, 12 parts of chromium, 6 parts of vanadium, 60 parts of aluminum and 20 parts of magnesium. Preferably, the thickness of the backboard material of the photovoltaic cell module is 15-20 [mu] m. According to the invention, while the metal ductility of the backboard material for the photovoltaic cell module is improved, pinholes are reduced, and the cost can be effectively reduced. The backboard material prepared according to the ratio of the technical scheme of the invention can prevent electrochemical reaction of the photoelectric conversion unit.

Description

Technical field [0001] The invention belongs to the technical field of photovoltaic power generation, and its feature relates to a backsheet material for photovoltaic cell modules. Background technique [0002] The main structure of a photovoltaic cell includes a photoelectric conversion unit, a packaging material for a protection circuit, a casing and other supporting structures. In order to ensure the luminous efficiency and service life of the photoelectric conversion unit, and prevent the photoelectric conversion unit from reducing the luminous efficiency and shortening the service life due to circuit leakage, corrosion, etc., the backplane of the photoelectric conversion unit is required to maintain a certain strength while also requiring high Barrier performance, that is to prevent water vapor from contacting the photoelectric conversion unit, to prevent the occurrence of electrochemical reactions inside the photoelectric conversion unit. Nowadays, the back sheet in the ph...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/049C22C21/00C22C30/00
CPCY02E10/50
Inventor 王方民周朝兵王明磊马振中
Owner 山东天拓电子科技有限公司
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