Why Do Stacked Cells Require Higher Vacuum Than Wound Cells?

Stacked and wound are two common packaging methods in vacuum technology. Stacked packages typically demand higher vacuum requirements because they have higher sealing performance and stricter process demands.

First, stacked packages often use metal or ceramic materials that offer better sealing and compressive strength. In contrast, wound packages commonly use plastic or composite materials with lower sealing and pressure resistance. Therefore, stacked packages can better maintain internal stability and sealing in vacuum environments.

Second, stacked packaging requires more precise manufacturing and assembly to ensure sealing and stability. Wound packaging processes are generally simpler and less demanding. Thus, stacked packaging requires stricter process control and quality management for vacuum applications.

In summary, stacked packaging generally requires higher vacuum standards due to its superior sealing and stricter process requirements. Choose the packaging method based on application needs and vacuum conditions to ensure stability and reliability.