Key technologies and development trends of metal seals in new energy vehicle battery systems

With the rapid development of new energy vehicles, the battery system as its core component, its key technology is particularly important. In the battery system, metal seals as an important connection and sealing components, directly affect the safety, stability and performance of battery components. This paper will discuss the key technologies and development trends of metal seals in new energy vehicle battery systems.

1. Key technologies

1.1 Material selection

The material choice of the metal seal is critical to its performance in the battery system. In general, metal seals need to have good electrical conductivity, corrosion resistance and mechanical strength to ensure long-term stable battery operation. Common materials include stainless steel, aluminum alloy, etc., which have excellent properties in high temperature resistance and pressure resistance.

1.2 Manufacturing Process

The manufacturing process directly affects the precision and performance of metal seals. Modern manufacturing technologies such as laser welding and precision machining enable metal seals to achieve higher sealing and durability requirements. The precision manufacturing process not only improves the reliability of seals, but also reduces energy consumption and costs.

1.3 Sealing performance

The sealing performance of metal seals is directly related to the safety and efficiency of the battery system. In high pressure and high temperature environments, seals must be able to effectively prevent electrolyte leakage, to avoid damage to battery components and the occurrence of safety accidents. Therefore, the improvement of sealing performance has become one of the focuses of current research.

2. Development trend

2.1 Application of high-performance materials

With the progress of materials science, the application of new high-performance metal materials has become the future development trend. These materials not only have the advantages of traditional materials, but also can perform well in more extreme working environments, such as silicon carbide, nickel-based alloys, etc., and the application of these materials will further improve the performance of metal seals.

2.2 Intelligence and automation of manufacturing process

The introduction of intelligent manufacturing and automation technologies will promote the precision and efficiency of the metal seal manufacturing process. Through machine learning and artificial intelligence technologies, manufacturing processes can be monitored and optimized in real time, improving production efficiency and product quality.

2.3 Environmental protection and sustainable development

In today's increasing awareness of environmental protection, the manufacturing and application of metal seals will also develop in the direction of environmental protection and sustainable development. Reducing energy consumption and reducing waste emissions has become a common goal of the manufacturing industry, and future metal seals will pay more attention to the recycling of materials and life cycle analysis.

In summary, the key technologies and development trends of metal seals in new energy vehicle battery systems demonstrate the prospects of an industry that is increasingly innovative and striving for excellence. With the advancement of technology and the expansion of applications, metal seals will make positive contributions to environmental protection and sustainable development while ensuring the safe and stable operation of new energy vehicle battery systems.

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