Development and Die-Cutting Process Optimization of High-Temperature-Resistant and Anti-Aging Barcode Substrate for Photovoltaic Modules

Quanzhen Ding
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Quanzhen Ding: Suzhou Lema Electronic Technology Co., Ltd., Jiangsu 201100, China

Innovation in Science and Technology, 2025, vol. 4, issue 8, 22-28

Abstract: This study addresses the durability issues of barcode substrates for photovoltaic (PV) modules under extreme conditions such as high temperature, high humidity, and intense ultraviolet (UV) radiation. A three-layer structured barcode substrate with high-temperature resistance and anti-aging properties was developed, and the die-cutting process was optimized. The three-layer structure consists of a polyethylene terephthalate (PET) substrate layer, a polyimide (PI) anti-aging layer, and a wear-resistant coating. The synergistic effect of these layers significantly enhances the substrate’s temperature resistance and anti-aging performance. Experimental results indicate that after 100 thermal cycles, the tensile strength retention rate of the three-layer structured substrate reaches 92%, much higher than the 65% of traditional PET substrate. After 1000 hours of UV irradiation, the color difference (ΔE) is only 1.5, compared to the 4.0 of traditional PET substrate. Following the optimization of the die-cutting process, the burr rate was reduced from 8% to 0.5%, and the material utilization rate increased from 82% to 95%. In the pilot application at Mingyang Smart and the long-term testing in desert power stations, the three-layer structured barcode substrate demonstrated excellent performance, with a barcode integrity rate of 98%, significantly higher than the 70% of traditional PET substrate. This study provides significant technical support for the development of barcode substrates for PV modules, promoting the high-quality development of the PV industry.

Keywords: photovoltaic modules; high-temperature-resistant and anti-aging barcode substrate; three-layer structure; die-cutting process optimization; temperature resistance; anti-aging properties; die-cutting precision; material utilization rate; extreme environment; PV industry; production efficiency; reliability; traceability system (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:bdz:inscte:v:4:y:2025:i:8:p:22-28

DOI: 10.63593/IST.2788-7030.2025.09.004

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