Transformation and migration mechanism of fluorine-containing pollutants in the pyrolysis process of spent lithium-ion battery
文献类型：期刊论文
| 作者 | Huang, Hanlin1,2,3; Liu, Chunwei1,2,3; Sun, Zhi1,2,3 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-08-05 |
| 卷号 | 435页码:13 |
| 关键词 | Pyrolysis Recycling Fluorine-containing pollutants Spent lithium-ion battery |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2022.128974 |
| 英文摘要 | Pyrolysis is an effective method to remove organics (e.g. electrolytes and binders) from spent lithium-ion battery (LIB). In this study, the co-pyrolysis characteristics of fluorine-containing substances and active materials from LIB were investigated using thermogravimetric-differential scanning calorimetry (TG-DSC), infrared spectroscopy (IR), and mass spectrometry (MS) analysis. Associated with the pyrolysis, active materials adsorb the residues of electrolyte on the surface and into the pores (20-200 degrees C), while polyvinylidene fluoride (PVDF) forms a liquid film to cover the local surface of active materials (400-500 degrees C). These interactions prevent deep removal of organics, leaving fluorine-containing contaminants in active materials. The barrier effect of PVDF liquid mesophase on the removal of organics with secondary liquidous phase formation during pyrolysis was confirmed by in situ optical observation. The migration behavior of fluorine element during the pyrolysis of black mass (BM) from spent LIB was also investigated. With pyrolysis temperature increasing from 100 degrees C to 600 degrees C, the dissociable fluorine content in pyrolyzed BM increased from 1.4 wt% to 3.7 wt%. The fluorine-containing contaminants in BM cannot be removed completely by simply increasing pyrolysis temperature. This study provides a better understanding on the transformation of fluorine-containing pollutants during the pyrolysis of BM. |
| WOS关键词 | ELECTRODE MATERIALS ; THERMAL-DEGRADATION ; CATHODE MATERIALS ; VACUUM PYROLYSIS ; VALUABLE METALS ; RECOVERY ; CARBONATE ; COBALT ; TECHNOLOGY ; LIBERATION |
| 资助项目 | National Natural Science Foundation of China[51874269] ; National Natural Science Foundation of China[51934006] ; National Natural Science Foundation of China[52004263] ; 14th Five-year Informatiza-tion Plan of Chinese Academy of Sciences, Construction of Scientific Data Center System[WX145XQ07-12] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000799059000005 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; 14th Five-year Informatiza-tion Plan of Chinese Academy of Sciences, Construction of Scientific Data Center System |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53623]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Chunwei; Sun, Zhi |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr green recycling strateg Met reso, Beijing 100190, Peoples R China 2.Inst Proc Engn, Natl Basic Publ Sci Data Ctr, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 101407, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Hanlin,Liu, Chunwei,Sun, Zhi. Transformation and migration mechanism of fluorine-containing pollutants in the pyrolysis process of spent lithium-ion battery[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,435:13. |
| APA | Huang, Hanlin,Liu, Chunwei,&Sun, Zhi.(2022).Transformation and migration mechanism of fluorine-containing pollutants in the pyrolysis process of spent lithium-ion battery.JOURNAL OF HAZARDOUS MATERIALS,435,13. |
| MLA | Huang, Hanlin,et al."Transformation and migration mechanism of fluorine-containing pollutants in the pyrolysis process of spent lithium-ion battery".JOURNAL OF HAZARDOUS MATERIALS 435(2022):13. |
入库方式： OAI收割
来源：过程工程研究所
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