1. Purchased battery cells are tested
Since it is to assemble a cylindrical lithium battery pack, the purchased battery cells must need to be tested after they are taken back. It mainly detects whether the capacity of the battery cell, magnification, number of cycles, open circuit voltage, AC internal resistance, etc. meet the requirements and so on.
Equipment needed here: cell capacity detector and cell automatic sorting machine
1) Cell capacity detector
It is mainly to detect the capacity, number of cycles, and magnification of the cell
2) Battery cell automatic sorting machine
After the detection of the battery cells by the sorting machine, the consistency of the battery can be guaranteed. This device automatically detects the open circuit voltage and AC internal resistance of lithium cells.
2. Battery automatic veneer pad (insulating paper/barley paper)
It is not necessary to put on the equipment here, if your current output is not very high, you can use manual stickers to compare costs. Of course, the efficiency of machine and equipment sticking is very high, and the efficiency of the positive pole sticker barley paper machine can reach about 5,000 stickers per hour. The battery is single-cell, and it can be automatically attached (positive electrode, single and double-sided, side stickers are OK), and both sides can be attached. Suitable for: cylindrical lithium battery cell sticking insulation paper.
Prevent high temperatures from short-circuiting the battery, so this process is important.
3. Lithium battery nickel sheet welding (or strip plate welding, according to the specific needs of customers)
After the above process tests, the battery cell is no problem. Here, the battery pack is generally welded into a lithium battery pack (lithium battery pack) by series or parallel or series and parallel. Welding firm, beautiful, not virtual welding is particularly important, so look at different requirements to choose different spot welding machines (there are too many types of spot welding machines).
4. Comprehensive test of battery pack
Equipment required here: comprehensive testing of finished products, lithium battery aging cabinet
Finished product comprehensive tester
The comprehensive test equipment of finished battery is a fast and accurate test of the performance of finished battery equipment, the main test items are: open circuit voltage, AC internal resistance, discharge test, discharge overcurrent test, short circuit protection test, charging test, charging protection test. The system adopts 32-bit ARM processor, voltage and current use 16-bit AD converter, compared with similar equipment, the test speed is fast, the test accuracy is high, and multiple devices are supported for simultaneous operation. Widely used in automotive electronics, aerospace, shipbuilding, solar energy storage, electric bicycles, electric motorcycles, back power supply batteries, communication power supplies and other power battery pack production and scientific research experimental testing.
