The packaging process of lithium battery refers to the assembly of battery core, protective plate, battery lead, battery nickel sheet, battery accessories, battery box and battery film into finished battery by welding. There are two ways to realize the packaging technology of lithium battery, one is laser/ultrasonic/pulse welding, and the other is metal contact of elastic sheet. The difference between these two methods is that the former is reliable but not easy to replace, and the latter is easy to replace without welding, but it may lead to poor contact.

The mobile phone lithium battery pack is fully functional, and its feature is 1. The battery is required to have a high degree of consistency. 2. The cycle life is shorter than that of a single battery. 3. It can be used under limited conditions, including charging and discharging current, charging mode, temperature and humidity conditions, etc. 4. The circuit protection board needs the function of charging balance. 5. It needs a high charger and ensures safe and reliable use.

The test of mobile phone lithium battery pack requires a lot of current. The shrapnel microneedle module can meet the PACK test requirements of mobile phone lithium batteries, mainly because it can carry out over-current test, has long service life, can maintain good performance even in a small space, has good conductive effect, can pass a current of up to 50A, can be conducted in the same material, has constant resistance, stable electrical performance and better connection function.