Background of Nitrogen Generators for New Energy Applications

In recent years, with increasing issues such as energy shortages and environmental pollution, the call for energy conservation and emission reduction has grown louder, and the global "carbon neutrality" process has accelerated continuously. 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 the "dual carbon" goals.

System Composition of Nitrogen Generators for New Energy Applications

The nitrogen generator for energy applications primarily consists of a nitrogen production system that uses air as the raw material, including equipment such as 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 for oil and water removal, then buffered by the air buffer tank, and finally processed by the pressure swing adsorption nitrogen generator to produce nitrogen with a purity ≥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, due to the large size of the batteries, baking is required before filling the battery slurry. At this stage, a nitrogen generator is needed to introduce nitrogen during baking, which can remove the vacuum inside the oven, prevent high-temperature oxidation during production, accelerate cooling, and serve as a protective gas. Introducing nitrogen helps remove substances such as oxygen and water vapor from the solution, preventing oxygen from participating in electrode reactions and maintaining the stability of the electrolyte. Additionally, during the welding process of lithium batteries, high welding temperatures can cause the aluminum casing to turn black or yellow. Using a nitrogen generator specifically designed for the lithium battery industry ensures proper activation of the flux, reduces residual flux, enhances welding quality, and improves the appearance of the weld surface. Hangzhou Lecheng Gas Equipment Co., Ltd. manufactures nitrogen generators for the lithium battery industry that offer the advantage of producing high-purity nitrogen in a single step, with nitrogen purity adjustable between 99.99% and 99.9995%. For higher requirements, purification devices can be customized.

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 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)