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| A green method to separate different layers in photovoltaic modules by using DMPU as a separation agent | |
| Li, Ke1,3; Wang, Zhi2; Liu, Changming4; Wang, Dong1,2; Li, Guobiao1; Chen, Xuanyi2; Qian, Guoyu2; Hu, Kaibo1,3 | |
| 2022-09-15 | |
| Source Publication | SOLAR ENERGY MATERIALS AND SOLAR CELLS
 |
| ISSN | 0927-0248 |
| Volume | 245Pages:11 |
| Abstract | Crystalline silicon photovoltaic (PV) modules have dominated the photovoltaic market for a long time and the recycling of crystalline silicon PV modules has become a critical issue due to their limited service life. The separation of glass and backsheet bonded by EVA film is critical to the separation of PV modules for the separation of different layers in PV modules is the premise of adequately recycling valuable elements such as Ag, Al, and Si. Traditional separation reagents, such as toluene, O-dichlorobenzene, and trichloroethylene, are all highly toxic which may cause harm to human body and pollute the environment. This paper innovatively proposes using green separation reagent DMPU (N,N'-dimethylpropenylurea, C6H12N2O) to separate different layers in PV modules. Constituents of each layer in the whole were analyzed by using SEM/EDS, XRD, XRF, and FTIR. Effects of different pieces, reaction temperatures, solid-liquid ratios, and ultrasonic powers were then investigated on the separation ratio, glass recovery ratio and backsheet peeling time. Meanwhile, separation comparison between DMPU and toluene on the separation ratio and silicon wafer breaking degree was also studied. Compared with toluene, the solar cell separated by DMPU can keep its initial size which is convenient for further resource recovery. Separation mechanism of different layers caused by DMPU was also studied by SEM, FTIR, and GC-MS. This study has significant implications for developing environmentally friendly and efficient separation reagents for recycling PV modules. |
| Keyword | Crystalline silicon photovoltaic modules Layers separation Recycling Environmental friendly reagent DMPU |
| DOI | 10.1016/j.solmat.2022.111870 |
| Language | 英语 |
| WOS Keyword | CHEMICAL TREATMENT ; SILICON ; WASTE ; PANELS ; LIFE ; END ; NANOPARTICLES ; PYROLYSIS ; RECOVERY ; SILVER |
| Funding Project | National Natural Science Foundation of China[51934006] ; National Natural Science Foundation of China[U1902219] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-3-1-13] ; self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Science[E055A002] |
| WOS Research Area | Energy & Fuels ; Materials Science ; Physics |
| WOS Subject | Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied |
| Funding Organization | National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences ; self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Science |
| WOS ID | WOS:000879372000002 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/55442 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Zhi; Wang, Dong |
| Affiliation | 1.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341007, Peoples R China 2.Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Res Ctr Green Recycling Strateg Met Res, Inst Proc Engn, Beijing 100190, Peoples R China 3.Nanchang Univ, Nanchang 330031, Jiangxi, Peoples R China 4.Zhejiang Jinko Solar Co Ltd, Jiaxing 314400, Zhejiang, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Ke,Wang, Zhi,Liu, Changming,et al. A green method to separate different layers in photovoltaic modules by using DMPU as a separation agent[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2022,245:11. |
| APA | Li, Ke.,Wang, Zhi.,Liu, Changming.,Wang, Dong.,Li, Guobiao.,...&Hu, Kaibo.(2022).A green method to separate different layers in photovoltaic modules by using DMPU as a separation agent.SOLAR ENERGY MATERIALS AND SOLAR CELLS,245,11. |
| MLA | Li, Ke,et al."A green method to separate different layers in photovoltaic modules by using DMPU as a separation agent".SOLAR ENERGY MATERIALS AND SOLAR CELLS 245(2022):11. |
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