Virtual welding and de-welding are common defects in the manufacture of electronic components. Virtual welding means that the solder does not completely wet the solder joint during the welding process, resulting in a gap between the solder joint and the pad, which affects the reliability and conductivity of the solder joint. Dewelding refers to the failure of the connection between the solder joint and the pad during the welding process, resulting in the solder joint falling off or loosening, which seriously affects the performance and reliability of electronic components.
For ternary lithium battery packs, the problem of virtual welding and de-welding also exists. Ternary lithium battery pack is a high energy density, high performance battery technology, widely used in electric vehicles, mobile devices and other fields. In the manufacturing process of ternary lithium battery pack, welding is a very important link, which is directly related to the performance and life of the battery pack.
Virtual welding and de-welding problems for ternary lithium battery packs may have the following effects:
1. Decreased conductivity:
Virtual welding and de-welding will lead to poor contact between the solder joint and the pad, resulting in a decrease in current conductivity, affecting the overall performance of the battery pack.
2. Increased security risks:
Virtual welding and de-welding may cause the solder joints inside the battery pack to loosen or fall off, which may cause safety problems such as internal short circuit and leakage of the battery, and may even lead to serious accidents such as overheating and explosion of the battery.
3. Shortened life span:
The stress concentration at the solder joint will affect the structural strength and vibration resistance of the battery pack, thus shortening the service life of the battery pack.
In order to avoid the impact of welding and de-soldering problems on ternary lithium battery packs, manufacturers can take the following measures:
1. Optimize welding process:
Manufacturers can optimize the welding process, including controlling welding temperature, welding time and other parameters, to ensure good contact between the solder joint and the pad.
2. Strengthen quality inspection:
The manufacturer can strengthen the quality inspection of the welding process to ensure that there is no false welding and de-welding phenomenon in the welding process.
3. Introduce automation equipment:
Manufacturers can introduce automation equipment to improve the accuracy and stability of welding, thereby reducing the occurrence of false welding and derwelding.
In summary, the problem of virtual welding and de-welding also has risks for ternary lithium battery packs. Manufacturers should pay attention to these problems and take appropriate measures to reduce the occurrence of virtual welding and de-welding to ensure the performance and safety of ternary lithium battery packs.
