| • Cathode material segment | |
| The NMP volatile concentration in homogenizing process reaches 8,000–15,000 mg/m³ (accounting for 60% of the total emissions in the production process), and the sintering exhaust gas contains DMF and nanoscale metal oxide aerosols | |
| • Negative material section | |
| The graphitization process produces asphalt smoke (5–15 μg/m³ content of benzo[a]pyrene), and the coating drying exhaust contains acetone (concentration fluctuation 200–800 mg/m³) | |
| • Electrolyte segment | |
| Lithium hexafluorophosphate synthesis waste gas containing HF (50–150 ppm), solvent purification non-condensing gas containing DMC/EMC (boiling point 80–110 °C) | |
| • Diaphragm section | |
| The dichloromethane solvent used in the wet diaphragm process will be all volatilized in the drying process, and the characteristics of low boiling point, high temperature and high concentration pose no small challenge to the combustion and recovery treatment process | |
| • Battery assembly section | |
| Liquid injection process EC/PC volatilization (concentration gradient 100–3,000 mg/m³), formed exhaust gas containing DEC (accounting for 40–60%) and trace HF |
