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Backboard material of 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

Now the backplane in photovoltaic cell modules uses pure aluminum metal sheet, and when the thickness of pure aluminum metal sheet is less than 25um, 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] Embodiment 1: a kind of back plate material of photovoltaic cell module, comprises the following composition by mass fraction: 1 part of manganese, 5 parts of tin, 5 parts of vanadium, 70 parts of iron, 15 parts of zinc. The thickness of the back plate material of the photovoltaic battery module is 15-25um.

[0011] The backplane material obtained through the above solution, when processed into a 15-micron sheet, is observed through an electron microscope, and it is found that there are few pinholes, which can fully meet the requirements of photovoltaic elements.

Embodiment 2

[0012] Embodiment 2: A kind of back plate material of photovoltaic battery module, comprises the following composition by mass parts: 10 parts of manganese, 25 parts of tin, 25 parts of vanadium, 95 parts of iron, 25 parts of zinc. The thickness of the back plate material of the photovoltaic battery module is 15-25um.

[0013] The backplane material obtained through the above solution, when processed into a 15-micron sheet, is observed through an electron microscope, and it is found that there are few pinholes, which can fully meet the requirements of photovoltaic elements.

Embodiment 3

[0014] Embodiment 3: A kind of back plate material of photovoltaic cell assembly, comprises the following composition by mass parts: 3 parts of manganese, 10 parts of tin, 10 parts of vanadium, 80 parts of iron, 18 parts of zinc. The thickness of the back plate material of the photovoltaic battery module is 15-25um.

[0015] The backplane material obtained through the above solution, when processed into a 15-micron sheet, is observed through an electron microscope, and it is found that there are few pinholes, which can fully meet the requirements of photovoltaic elements.

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Abstract

The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a backboard material of a photovoltaic cell module. The backboard material comprises the following components in parts by mass: 1-10 parts of manganese, 5-25 parts of tin, 5-25 parts of vanadium, 70-95 parts of iron and 15-25 parts of zinc. Preferably, the backboard material of the photovoltaic cell module comprises the following components in parts by mass: 3-8 parts of manganese, 10-20 parts of tin, 10-20 parts of vanadium, 80-90 parts of iron and 18-23 parts of zinc. Most preferably, the backboard material of the photovoltaic cell module comprises the following components in parts by mass: 5 parts of manganese, 15 parts of tin, 15 parts of vanadium, 85 parts of iron and 20 parts ofzinc. Preferably, the thickness of the backboard material of the photovoltaic cell module is 15-25 [mu] m. According to the invention, while the metal ductility of the backboard material of 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 an electrochemical reaction of a photoelectric conversion unit.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power generation, and its characteristics relate to a back plate material of a photovoltaic battery module. Background technique [0002] The main structure of photovoltaic cells includes photoelectric conversion units, packaging materials for protection circuits, casings 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 causing a decrease in luminous efficiency and shortened life due to circuit leakage, corrosion, etc., the backplane of the photoelectric conversion unit is required to maintain a certain strength and also require a high Barrier performance, that is, to block the contact between water vapor and the photoelectric conversion unit, and prevent the occurrence of electrochemical reactions inside the photoelectric conversion unit. At present, the backp...

Claims

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Application Information

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IPC IPC(8): H01L31/049C22C38/04
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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