How to balance the opening pressure and sealing performance when designing Lithium Battery Safety Valve to ensure the safety and durability of the battery?

When designing Lithium Battery Safety Valve, balancing its opening pressure and sealing performance is key to ensuring battery safety and durability. The precise grasp of this balance point relies on a deep understanding of the internal chemical reaction mechanism of the battery and the comprehensive application of materials science and precision manufacturing technology.
The setting of the opening pressure should be based on the internal pressure variation range of the battery under normal working conditions and extreme working conditions. Through simulation experiments and data analysis, we can determine an opening pressure value that can effectively prevent the battery from being damaged due to excessive internal pressure, without accidentally triggering during normal charging and discharging processes. The setting of this value needs to consider the influence of factors such as the thermal stability of battery materials, the volatility of electrolytes, and external environmental temperature.
The guarantee of sealing performance depends on the structural design and material selection of the safety valve. We use high-quality sealing materials, such as corrosion-resistant and high-temperature resistant alloys or special plastics, to ensure that the safety valve can maintain good sealing performance during long-term use. At the same time, through precise machining processes and strict quality control procedures, the precision of the fit between the safety valve and the battery housing is ensured to prevent abnormal leakage of gas or electrolyte.
In order to achieve the optimal balance between opening pressure and sealing performance, we continuously conduct experimental verification and performance optimization. By simulating the operation of the battery under different working conditions, the response speed and sealing effect of the safety valve are tested, and the design is adjusted and improved based on the test results. In addition, we also pay attention to industry trends and technological developments, timely introducing new materials, processes, and technologies to enhance the overall performance and reliability of Lithium Battery Safety Valve.