WaFu Brothers plays an important role in leak testing in the energy battery field, providing high-precision testing equipment. Its technology is widely used in lithium battery seal testing to ensure the sealing of battery housings and joints; for fuel cell leak testing to prevent gas leakage; and also supports battery pack packaging testing and power battery testing to ensure the safe operation of electric vehicles and energy storage systems. WaFu Brothers provides reliable protection for the energy battery industry with advanced technology and has become an important partner of battery manufacturers.
Cylindrical lithium-ion battery
Cylindrical lithium-ion batteries are widely used in power tools, electric bicycles, energy storage, electric vehicles and other scenarios. They contain flammable electrolytes and are mostly metal-encapsulated. Once the seal is poor, the following problems may occur Safety risks After air and water vapor penetrate, internal chemical reactions may occur, leading to bulging, leakage, short circuit, and even fire and explosion. Performance degradation Micro-leakage will also reduce battery capacity and increase internal resistance, affecting life and charge and discharge performance. Unstable quality Poor sealing will lead to reduced yield and increased repair rate, affecting the stability of enterprise shipments.
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Lithium polymer battery
Leak testers play a core role in the production and quality control of lithium polymer batteries (Li-Po). Their importance is not only related to product performance, but also directly related to the safety, reliability and compliance of batteries. The core role of leak testers in the manufacturing of lithium polymer batteries (Li-Po) is: Ensure safety: prevent electrolyte leakage and external water vapor infiltration, avoid risks such as bulging and burning; Improve quality: ensure stable battery capacity, longer life, and reduce after-sales problems; Control process: verify whether the sealing process such as heat sealing and welding meets the standards and improve the yield; Meet high standards: meet the strict requirements of sealing for high-end applications such as drones and medical equipment
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Ternary lithium battery
Ternary lithium batteries use nickel cobalt manganese oxide (NCM) or nickel cobalt aluminum oxide (NCA) as positive electrode materials, which have high energy density and high activity, but also bring higher safety requirements. If the sealing is poor, it will cause the following problems Higher risk of fire The ternary system is extremely sensitive to water vapor and electrolyte. Once there is a slight leak, thermal runaway or even explosion is likely to occur. Shortened life Insufficient airtightness leads to electrolyte volatilization, internal corrosion, and rapid battery capacity decay. Process out of control Fluctuations in the production process can easily lead to poor welding and sealing of the pole cap, and the sealing quality needs to be monitored in real time.
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