Background of Nitrogen Generators for New Energy Applications

In recent years, issues such as energy shortages and environmental pollution have become increasingly prominent, leading to growing calls for energy conservation and emissions reduction. The global "carbon neutrality" process is accelerating rapidly. The replacement of fuel-powered vehicles by new energy vehicles has become an inevitable trend. The rapid development of new energy vehicles has driven the lithium battery industry into an unprecedented period of major development opportunities. As an important component of the new energy industry, developing the lithium battery industry is one of China's measures to promote energy transformation and achieve its "dual carbon" goals.

System Composition of Nitrogen Generators for New Energy Applications

The nitrogen generator for new energy applications primarily consists of a nitrogen production system that uses air as the raw material. The system includes an air compressor, air buffer tank, refrigerated dryer, precision filter, pressure swing adsorption nitrogen generator, and nitrogen buffer tank. The air compressor serves as the source of compressed air required for the nitrogen generation system. The compressed air output by the air compressor is first treated by the refrigerated dryer to remove oil and water. It is then buffered by the air buffer tank before being processed by the pressure swing adsorption nitrogen generator to produce nitrogen with a purity of ≥98%.

Role of Nitrogen Generators in New Energy Battery Manufacturing

The production process of new energy batteries includes steps such as battery material production, slurry mixing, coating, drying, slitting, cell winding, battery assembly, electrolyte filling, and formation.

During the production of new energy batteries, lithium batteries, and other power batteries, the large size of the batteries necessitates baking before filling them with battery slurry. At this stage, nitrogen generators are required to introduce nitrogen during the baking process. This helps remove the vacuum inside the oven, preventing high-temperature oxidation during production, accelerating the cooling process, and enhancing cooling efficiency. Additionally, nitrogen acts as a protective gas. Introducing nitrogen removes substances such as oxygen and water vapor from the solution, preventing oxygen from participating in electrode reactions and maintaining the stability of the electrolyte. Furthermore, during the welding process of lithium batteries, high welding temperatures can cause the aluminum shell to turn black or yellow. Using nitrogen generators specifically designed for the lithium battery industry ensures proper activation of the flux, reduces residual flux, improves welding quality, and results in a more aesthetically pleasing weld surface. Hangzhou Lecheng Gas Equipment Co., Ltd. manufactures nitrogen generators specifically for the lithium battery industry, which offer the advantage of producing high-purity nitrogen in a single step. The nitrogen purity can be freely adjusted between 99.99% and 99.9995%, and purification devices can be customized for higher requirements.

Hangzhou Lecheng Gas Equipment Co., Ltd.'s nitrogen generators for the lithium battery and other power battery industries feature stable performance, simple operation, easy maintenance, advanced control systems, and a high degree of automation. These nitrogen generators can operate unmanned, effectively reducing user costs. The entire system runs reliably, ensuring stable continuous production and consistent nitrogen output and purity quality.

Technical Specifications of Nitrogen Generators for the New Energy Lithium Battery Industry

1. Nitrogen Flow Rate: 3-5000 Nm3/h

2. Nitrogen Purity: 95-99.9995%

3. Nitrogen Pressure: 0.1-0.8 MPa (adjustable)

4. Dew Point: -40°C to -60°C (at atmospheric pressure)