This documentation is still very early and not complete nor well written.
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Questions about the testing process

  • Can you propose a complete solution for our needs?
    • We need to test and sort salvaged Li-Ion cells from EV battery packs
    • Measurement of at least 10k cells / month, preferably 20k~40k. 8hrs operation /day, 5 days a week
    • Scalability for more cells /month later by adding machines / personnel
    • Low human operations needed. 1 operator would be great
    • 18650 cells but we will eventually need to test 21700 cells. Easily switching cell size on the machines without buying new ones would be interesting
  • Cell tab cleaning
    • What solution is usually employed when salvaging cells?
      • Is there a machine for removing nickel strip chips from cells salvaged from spot welded battery packs? Sanding?
      • Only manual operation with cutters?
    • Can you propose an AOI machine for checking both cell ends making sure they have been correctly removed?
  • For a given IR testing machine model, how many cells can fit in each output compartment?
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Questions specific to capacity testing machines (256/512-channel)

  • User manual / tutorial / video training? English software?
  • Upon reception, do we need to calibrate each channel for precise voltage and current readings? Is it trustfully factory calibrated?
  • Recommended cell sorting criteria? Every 100mAh ? 50?
  • How to change between 18650 / 21700 cell sizes? Needs complete different machine? Can be changed manually?
  • TOB : more details on :
    • “A LED is mounted on each of the battery fixtures as an operational status display, and when the discharge is completed, it can be used to indicate battery capacity sorting.”
    • Software features :
      • “Arbitrary segmented battery capacity indication (up to 100 segments)”
      • “Battery sorting function under various conditions (capacity, time, open circuit voltage, discharge platform, etc.)”
  • How to retrieve cell data? .csv files?
QR Code possible for each battery?