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Method for recycling crystalline silicon solar cell module

A solar cell module and solar cell technology, which is applied in the direction of solid waste removal, electronic waste recycling, recycling technology, etc., can solve the problem of no crystalline silicon solar cell module resource utilization, etc., and achieves good energy saving and environmental protection effects, and social and economic benefits. Good results

Inactive Publication Date: 2016-06-01
DONGGUAN COREHELM ELECTRONICS MATERIAL TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] However, there is no method in the prior art that can effectively recycle crystalline silicon solar cell components

Method used

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Embodiment Construction

[0024] The present invention will be described below in conjunction with specific embodiments.

[0025] A method for recycling crystalline silicon solar cell components, comprising the following process steps, specifically:

[0026] a. Disassemble the aluminum frame and junction box of the solar panel by mechanical disassembly;

[0027] b. Use cutting equipment to remove the rubber seals around the edges of the solar panel after dismantling the aluminum frame and the junction box;

[0028] c. Use cutting equipment to separate the ultra-clear glass, EVA film, battery sheet, back sheet film, and back sheet of the solar panel after removing the rubber seals around the edges;

[0029] d. Dissolving the separated cell sheet and cross-linked EVA in a solvent to separate the solar cell chip;

[0030] e. Chemically process the solar cell chip to obtain silicon material and silver powder.

[0031] It needs to be further explained that the mechanical dismantling method in step a is m...

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Abstract

The invention discloses a method for recycling a crystalline silicon solar cell module. The method includes the following specific technological steps that firstly, an aluminum frame and a junction box of a solar cell panel are demounted in a mechanical demounting manner; secondly, a cutting device is used for cutting off a peripheral edge rubber sealing strip of the solar cell panel with the aluminum frame and the junction box being demounted; thirdly, the cutting device is used for separating ultra-white glass, an EVA film, a battery piece, a backboard film, and a backboard of the solar cell panel with the peripheral edge rubber sealing strip being removed; fourthly, the separated battery piece and cross-linked EVA are dissolved in a solvent, so that a solar cell chip is separated; and fifthly, the solar cell chip is treated through a chemical method, and therefore a silicon material and silver powder are obtained. By means of design of the technological steps, crystalline silicon solar cell module resources can be effectively recycled, the energy-saving and environment-friendly effects are good, and social and economic benefits are good.

Description

technical field [0001] The invention relates to the technical field of material recovery and recycling, in particular to a method for recycling crystalline silicon solar cell components. Background technique [0002] Solar energy is considered as a minimal waste energy source, and no environmentally harmful waste is generated during the use of the modules; however, the solid waste generated after the solar cells are decommissioned cannot be ignored. Among them, the life cycle of solar battery module resources is generally 20-25 years. When the conversion efficiency drops to a certain level, the battery will fail and need to be scrapped and updated; in addition, a large amount of energy will be generated during the production of batteries and battery modules and the maintenance of photovoltaic power plants. scrapped components. It is expected that after 2020, the solid waste of solar cells in the world and in my country will increase significantly, and the cumulative amount ...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00Y02W30/20Y02W30/82
Inventor 苏冠贤刘健
Owner DONGGUAN COREHELM ELECTRONICS MATERIAL TECH CO LTD
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