Shanghai Haiyouwei New Materials Co., Ltd. has applied for a patent for a method of recycling photovoltaic (PV) modules, aiming to enhance the recycling speed of these components. According to the National Intellectual Property Administration, the patent application, titled “Method for Recycling Photovoltaic Modules,” was submitted on December 2023, with the publication number CN119972713A.
The patent summary reveals that the invention outlines a method to recycle PV modules, which consist of an organic encapsulation layer, glass, a frame, and a junction box. The recycling process includes the following steps: identifying the frame size and positioning it; locating the junction box; removing the junction box to form a first dismantled component that includes the frame, glass, and organic encapsulation layer; dismantling the frame to create a second component that includes the glass and organic encapsulation layer; using a chamfered milling cutter to remove the glass and obtain the organic encapsulation layer; performing oxygen-free low-temperature pyrolysis on the organic encapsulation layer to yield gaseous and solid components; condensing or heat-exchanging to cool the gaseous components to obtain liquid components; and heat-exchanging to cool the solid components. The properties of the gaseous, liquid, and solid components are then collected separately.
This method is designed to accelerate the recycling speed of PV modules, improve the recovery rate of various components, and achieve zero emissions, which holds significant potential for widespread application.
Founded in 2005 and located in Shanghai, Shanghai Haiyouwei New Materials Co., Ltd. primarily engages in specialized technical services. The company has a registered capital of 84.020211 million RMB. Based on data analysis from Tianyancha, the company has invested in 15 other enterprises, participated in one bidding project, and holds 92 trademark registrations and 294 patent records. Additionally, it possesses five administrative licenses.
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