When it comes to batteries, there are a number of quick checks that are often performed during incoming inspection:Checking the box for damage and proper battery packing (e. A visual inspection of a selection of batteries for any signs of leaking or buckling.
Without thorough incoming inspections, there is an additional risk of deployment of counterfeit cells with deviating cell properties and/or missing safety components such as the current interruption device or a pressure relief valve.
Why is identifying deviations in the electrical behavior of battery cells important?
Depending on the area of application, identifying deviations in the electrical behavior of the battery cells under test can be essential for downstream assembly processes like cell matching and algorithm adaptations of the battery management software.
Why is cell characterization important in incoming inspection?
The cell characterization in the incoming inspection is an important but time and cost intensive process step. In order to obtain reliable parameters to evaluate and classify the cells, it is essential to design the test procedures in such a way that the parameters derived from the data allow the required statements about the cells.
The visual inspection of the cells showed a homogeneous quality, independent of the batch. No abnormalities like dents, cracks, or similar were found. The cells of all intermediaries were insulated with transparent shrink wrap of varying material and design.
Even if you buy only from major battery suppliers you still need an incoming inspection program. Failure to adequately QC new stock will result in unhappy customers with the resultant loss of repeat business. The UBA5 is ideal for incoming inspection of both primary and secondary batteries. Use it three different ways:
How do cell manufacturers ensure compliance with the product specification?
The authors assume that the cell manufacturer of their test specimens initially took a conservative approach to ensure compliance with the product specification and then carried out optimizations to save on raw materials and reduce costs, as an adjustment of the silicon and nickel content was revealed.