New Energy Lithium Battery Exhaust Gas Treatment

Do you want to know about the treatment of exhaust gas from new energy lithium batteries? Jiangsu Haipu reveals to you that the basic components of lithium-ion batteries include positive electrode, negative electrode, electrolyte, and separator. In the manufacturing process of lithium-ion batteries, the positive electrode material and negative electrode material are respectively added with binder and organic solvent for stirring and grinding, mixed evenly and coated on copper foil and aluminum foil as current collectors. After drying, the positive and negative electrodes of the battery are made.

N-Methylpyrrolidone (NMP) is widely used in the manufacturing process of lithium-ion batteries due to its high flash point, good safety, and good solubility and dilution performance of the adhesive PDVF.

During drying, the organic solvent NMP is completely converted into gas and discharged into the atmosphere through the exhaust fan along with the heated air.

Haipu's various organic waste gas treatment adsorption resins can treat a wide range of organic waste gases, efficiently removing harmful components from the waste gas with high removal rates. The pollutant content in the exhaust gas is strictly controlled, and the effective components in the waste gas can be adsorbed and recovered to improve resource utilization.

When processing, the relevant VOCs waste gas is first extracted by a vacuum pump and subjected to secondary condensation. The condensed and liquefied components are received in storage tanks, and the uncondensed waste gas is connected to an adsorption tower containing adsorption resin for adsorption enrichment. After adsorption, the waste gas can be discharged in compliance with standards, and the solvent is recovered.

After the adsorbent is saturated with adsorption, it is blown off. The mixture of blown off components and water vapor is then condensed and liquefied, and allowed to stand and separate into layers for separation and recovery. This process can achieve a removal rate of over 98% for NMP in waste gas from the new energy battery industry, and is also suitable for the treatment of waste gases such as dichloromethane, dichloroethane, toluene, and dibromopropane.