Investigation of chemical hazards in the production line of a lithium battery manufacturing plant
10.19428/j.cnki.sjpm.2025.250234
- VernacularTitle:某锂电池企业生产线化学性有害因素调查
- Author:
Ziqian YANG
1
;
Yulai TIAN
2
;
Xueting WANG
1
;
Yiming DAI
1
;
Pengwei LIU
2
;
Chaoye SHEN
3
;
Jiming ZHANG
1
;
Zhijun ZHOU
1
Author Information
1. School of Public Health, Fudan University, Shanghai 200032, China
2. Shanghai Institute of Chemical and Occupational Diseases, Shanghai 200041, China
3. Chemical Toxicity Testing Institute, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 201107, China
- Publication Type:Journal Article
- Keywords:
lithium battery;
occupational health;
on-site survey;
volatile organic compound;
metal;
N-methyl pyrrolidone
- From:
Shanghai Journal of Preventive Medicine
2025;37(12):1009-1016
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the chemical hazards in the production line of lithium batteries, so as to provide a scientific basis for the management of occupational-health risk and to promote the healthy and sustainable development of the lithium battery industry. MethodsAn on-site survey on the process flow of the production of lithium battery was conducted in an enterprise. Volatile organic compounds (VOCs) in the occupational environment were collected by Summa canisters, carbonates and N-methyl pyrrolidone (NMP) were collected using activated carbon tubes, and airborne metals were collected using filter membranes. VOCs, carbonates and NMP were detected by gas chromatography-mass spectrometry (GC-MS), and airborne metal elements in the dust samples were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). ResultsNon-targeted environmental monitoring results indicated that NMP was detected in the negative /positive electrode coating, assembly and drying filling workstations, dimethyl carbonate (DMC) was detected in the assembly, drying and electrolyte injection workstations, and ethyl methyl carbonate (EMC) was detected solely in the electrolyte injection workstation. Semi-quantitative analyses of VOCs identified 136 pollutants, including acrylonitrile and halohydrocarbons. Quantitative targeted environmental monitoring results revealed the highest geometric mean (GM) concentration of EMC (31.450 mg·m-3) was found in the assembly and drying workstations, diethyl carbonate (DEC) was detected in all workstations. While vinylene carbonate (VC) and ethylene carbonate (EC) were detected only in electrolyte injection, assembly and drying workstations. NMP was detected in all positive electrode coating samples, with a GM concentration of 5.68 mg·m-3 (concentration range: 4.0‒ 7.4 mg·m-³). Lithium was exclusively detected in dust samples from the liquid injection workstation (GM: 0.014 μg·m-³). ConclusionNMP, EMC, DEC, and other chemicals are identified at the key workstations such as the positive electrode coating, electrolyte injection, assembly and drying in the lithium production line. Furthermore, semi-quantitative VOCs analyses identified 136 pollutants, demonstrating a characteristic of multicomponent chemical exposure.
