High-Purity Nitrogen Guards Green Mobility: Jiangsu Minnuo Nitrogen Generators, the Quality Core of the New Energy Vehicle Industry

Introduction: Who Guards the “Invisible Safety Line” of the Automotive Industry Amid the New Energy Wave?

As new energy vehicles become the core driving force of the global transportation revolution, technological breakthroughs in every link, from battery safety to vehicle quality, have captured the attention of the entire industry. What is little known is that a kind of “inert gas”—high-purity nitrogen—is playing an indispensable role in the clean workshops for power battery packaging, production lines for component welding, and high-temperature environments for tire vulcanization. With its strong anti-oxidation and anti-pollution properties, it has become an “invisible quality guardian” in the production of new energy vehicles.

Jiangsu Minnuo Group Co., Ltd., a pioneer in PSA nitrogen generator technology with decades of experience in the gas separation equipment sector, has become a strategic partner of leading automakers such as BYD and Great Wall Motor, thanks to its ultra-high purity of 99.9997%, a large gas output of 5000Nm³/h, and customized solutions for all scenarios. We solve industry pain points with technology, guarantee production efficiency with stability, and ensure that the safety and quality of every new energy vehicle stem from the “inert protection” of Minnuo nitrogen generators.

I. Targeting Industry Pain Points: Three “Fatal Problems” in New Energy Vehicle Production

The rapid development of the new energy vehicle industry has put forward unprecedented requirements for the precision and safety of production processes. However, traditional gas supply methods (cylinder nitrogen, liquid nitrogen) and ordinary nitrogen generation equipment have exposed obvious shortcomings:

1. Severe safety hazards: In power battery production, electrolyte deteriorates easily when exposed to water, and thermal runaway may occur if battery cells come into contact with oxygen. Ordinary nitrogen with insufficient purity (below 99.99%) cannot form an effective inert barrier, laying hidden dangers for battery safety. High-pressure leakage risks exist in the transportation and storage of cylinder nitrogen, seriously threatening workshop safety.
2. Excessively high costs: Data shows that the cost of high-purity cylinder nitrogen is about 15-20 RMB per cubic meter, and the transportation and loss costs of liquid nitrogen account for more than 40%. For new energy vehicle enterprises with an annual gas consumption of over 100,000 cubic meters, the gas cost alone amounts to millions of RMB.
3. Poor supply stability: Traditional gas supply is affected by transportation, weather and other factors, with frequent problems such as supply interruptions during cylinder replacement and purity fluctuations. A new energy vehicle enterprise once suffered a 3-hour shutdown of its battery packaging production line due to the interruption of cylinder nitrogen supply, resulting in a direct loss of over one million RMB.

Essentially, these pain points all point to a core demand: an on-site nitrogen generation solution with stability, high purity and low cost. Jiangsu Minnuo Group was founded precisely to meet this demand.

II. Minnuo Nitrogen Generators: Three Core Advantages Defining the Industry Benchmark

As a national high-tech enterprise in the gas separation equipment field, Jiangsu Minnuo Group has created a series of PSA nitrogen generator products adapted to the new energy vehicle industry based on decades of technical accumulation, solving industry pain points with three core advantages: purity, stability and energy efficiency.

1. Ultra-high Purity: 99.9997%, Eliminating Quality Hidden Dangers from the Source

The core demand of new energy vehicle production is the high purity and cleanliness of nitrogen. Minnuo nitrogen generators adopt world-top JALOX and UOP carbon molecular sieves, combined with patented PSA pressure swing adsorption technology. Through the cyclic operation of dual adsorption beds, they can efficiently separate oxygen, moisture and impurities from the air. The nitrogen purity can be precisely adjusted between 95% and 99.9997%, with the minimum oxygen content ≤0.3ppm and dew point ≤-70℃, fully meeting the “zero pollution” requirements of high-precision processes such as power battery packaging and laser welding.

Our equipment has obtained a number of authoritative certifications such as ISO9001 and ISO14001. Core components (such as German pneumatic valves and imported Japanese flowmeters) all adopt international first-tier brands to ensure the purity and stability of every cubic meter of nitrogen. After using Minnuo nitrogen generators, a leading new energy vehicle enterprise reduced the bubble rate of battery pack packaging from 0.8% to 0.05% and the reject rate of component welding from 10% to 1%, achieving remarkable quality improvement results.

2. Stable Supply: 24/7 Uninterrupted Operation, Adapting to All-scenario Production

Most new energy vehicle production lines operate continuously, and any gas supply interruption may cause huge losses. Minnuo nitrogen generators feature a “plug-and-play” design and are equipped with an intelligent PLC control system that real-time monitors key parameters such as purity, pressure and flow, with automatic fault diagnosis and alarm functions, realizing 24/7 unattended operation.

To meet the needs of automakers of different scales, we provide four series of products:

• Modular PSA nitrogen generators: Suitable for low-flow, high-purity scenarios (such as small battery laboratories), capable of producing gas quickly in 10-15 minutes and saving 30% energy in standby mode;
• Skid-mounted nitrogen generators: Integrating air compressors, dryers, air storage tanks and other complete sets of equipment, with low installation costs, suitable for component processing plants;
• Containerized nitrogen generators: With standardized 10-40 foot design, convenient transportation and a gas output of up to 5000Nm³/h, meeting the needs of whole vehicle production lines of large automakers;
• Explosion-proof nitrogen generators: Specially designed for explosion-proof scenarios such as power battery workshops, with industry-leading safety factors.

Whether you are a large automaker with an annual output of 100,000 vehicles or a small and medium-sized enterprise focusing on component processing, you can find a precisely matched solution.

3. Ultra-high Energy Efficiency: 50%-300% Cost Reduction, Empowering Green Manufacturing

Under the “dual carbon” goals, energy conservation and consumption reduction have become the core demands of automakers. Minnuo nitrogen generators achieve low-cost operation throughout the life cycle through three technological innovations:

• On-demand gas production: The system can automatically adjust the load according to the nitrogen demand of the production line and enter standby mode automatically when nitrogen is not needed, avoiding energy waste;
• Energy recovery: Recover and utilize the thermal energy generated during the compression process for workshop heating or material drying, improving energy efficiency by 20%;
• On-site nitrogen generation: Compared with cylinder nitrogen, on-site nitrogen generation eliminates intermediate costs such as transportation, storage and losses, with the nitrogen cost only 1-3 RMB per cubic meter and the comprehensive cost reduced by 50%-300%.

A new energy vehicle component manufacturer calculated that after introducing a 20-cubic-meter Minnuo nitrogen generator, it saves nearly one million RMB in gas costs every year, with the shortest investment payback period of only 12 months.

III. Full-scenario Coverage: Inert Protection of Nitrogen from Batteries to Whole Vehicles

Every sophisticated link in new energy vehicle production cannot do without the support of high-purity nitrogen. Jiangsu Minnuo nitrogen generators have deeply penetrated the entire chain from power battery production to vehicle assembly, becoming a “production necessity” for automakers.

Scenario 1: Power Battery Production — The First Line of Defense for Safety

Power batteries are the core of new energy vehicles, and their production process is extremely sensitive to moisture and oxygen. Minnuo nitrogen generators provide protection in three key links of battery production:

• Raw material mixing: The inert nitrogen environment prevents the oxidation of cathode materials and increases the battery cycle life by 20%;
• Electrolyte injection: Dry nitrogen purges the injection port to prevent moisture from entering the battery and avoid thermal runaway;
• Packaging and welding: High-purity nitrogen protects the weld seam, eliminating air holes and cracks and ensuring battery tightness.

A power battery manufacturer once had a battery cycle life of only 800 times due to the insufficient purity of ordinary nitrogen generators. After replacing with Minnuo nitrogen generators with 99.999% purity, the cycle life increased to 1200 times, reaching the top level in the industry.

Scenario 2: Component Processing — The Invisible Polisher of Quality

The processing of new energy vehicle components (such as motor shafts, body frames and fasteners) has extremely high requirements for precision and strength:

• Heat treatment: During high-temperature quenching, nitrogen builds a closed inert environment to prevent oxidation and decarburization of parts, increasing strength by 18% and reducing the defective rate from 3% to below 0.1%;
• Laser welding: Nitrogen acts as a shielding gas to prevent weld seam oxidation, making the qualification rate of body frame welding reach 99.5%;
• Injection molding: Nitrogen gas-assisted molding technology is used in the production of bumpers and instrument panels, saving 10%-30% of raw materials, shortening the molding cycle by 30%-50%, and completely solving the problem of surface sink marks.

Scenario 3: Tire Vulcanization and Inflation — The Final Guarantee for Safety

The tire performance of new energy vehicles directly affects driving safety:

• Vulcanization process: The high-purity nitrogen from Minnuo nitrogen generators realizes “pressure maintaining and temperature changing” vulcanization. Compared with traditional steam vulcanization, it reduces energy consumption by 80%, increases tire tear resistance by 15% and improves wear resistance by 20%;
• Finished product inflation: High-purity nitrogen has a low thermal expansion coefficient, maintaining stable air pressure under high-temperature and high-speed working conditions, reducing the risk of tire blowout by 60% and extending tire life by 20%, which has become a standard service for high-end new energy vehicles.

IV. Service First: Worry-free Experience from Design to Operation and Maintenance

Jiangsu Minnuo Group deeply understands that the value of industrial equipment lies not only in the product itself, but also in the life-cycle service guarantee. We have established an integrated service system covering R&D, manufacturing, installation, operation and maintenance:

• Customized design: Our engineer team conducts on-site surveys and tailors the optimal gas supply solution according to the production process, site conditions and purity requirements;
• Fast delivery: The standardized production base ensures equipment delivery within 30 days, and a professional team provides on-site installation and commissioning to ensure rapid commissioning;
• Lifetime operation and maintenance: Core components (10-year warranty for molecular sieves, 20-year warranty for main valves), 24/7 after-sales response, and service outlets set up in many parts of the country with a maintenance response time ≤24 hours, completely solving the worries of automakers.

Conclusion: Choosing Minnuo is Choosing Quality and the Future

The competition in the new energy vehicle industry has already penetrated into every detail of the production process. With ultra-high purity of 99.9997%, 24/7 uninterrupted stable supply and 50%-300% cost savings, Minnuo nitrogen generators of Jiangsu Minnuo Group have become a core tool for automakers to reduce costs and improve quality.

From the safe packaging of power batteries to the precision welding of body frames, from the strength improvement of components to the safety guarantee of tires, Minnuo nitrogen generators have always stood at the forefront of new energy vehicle production, empowering green mobility with “inert protection”.

Up to now, our equipment has served thousands of enterprises and been exported to more than 80 countries and regions, becoming the trusted choice of leading automakers such as BYD and Great Wall Motor. In the future, Jiangsu Minnuo Group will continue to deepen technological innovation, launch more efficient, energy-saving and intelligent nitrogen generation equipment, grow together with the new energy vehicle industry, and escort the safe travel of global consumers.

Choosing Jiangsu Minnuo means choosing stable quality, lower costs and worry-free services. Let us join hands to build a solid quality foundation for new energy vehicles with high-purity nitrogen and jointly promote the vigorous development of the green transportation industry!