A method for efficient decomposition of EVA in crushed solar panels

Jialin Zhan; Xinbai Xue; Jian Hu; Ran Wei

doi:10.1117/12.3050486

12 December 2024 A method for efficient decomposition of EVA in crushed solar panels

Jialin Zhan, Xinbai Xue, Jian Hu, Ran Wei

Proceedings Volume 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024); 134191D (2024) https://doi.org/10.1117/12.3050486
Event: Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 2024, Lhasa, China

Abstract

The paper first analyzes the physical crushing mechanism of photovoltaic modules and then examines the separation effect of EVA using pyrolysis crushing. With the increase in the number of crushing cycles, the weight proportion of particle size increased by 19.5%, and the weight proportion of -0.10mm cumulative product increased by 4.8%. The weight loss rate of the -0.10mm particle size of the heated cells was the highest. Further SEM analysis of the pyrolyzed crushed materials clearly showed that, compared to the state before pyrolysis, the materials changed from block aggregates to smaller, uniformly distributed particles, without adhesive residues. The pyrolyzed crushed materials had a higher degree of particle stereoscopic structure and lower density compared to the materials before pyrolysis. EDS analysis indicated that the main elemental composition of the crushed materials changed minimally before and after heating, but the elemental distribution in the pyrolyzed materials was more uniform than before pyrolysis. This further validated that incorporating pyrolysis into the crushing process significantly enhances the separation efficiency of EVA.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jialin Zhan, Xinbai Xue, Jian Hu, and Ran Wei "A method for efficient decomposition of EVA in crushed solar panels", Proc. SPIE 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 134191D (12 December 2024); https://doi.org/10.1117/12.3050486

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