Cathode Active Material & Precursor Manufacturing worked example

Inventory Coverage with usable battery-material inventory on hand of 3,000 kg: a worked example in cathode active material & precursor manufacturing

This scenario runs the inventory coverage calculation on the strong side: usable battery-material inventory on hand of 3,000 kg, with every other input held at its documented default. Use it when inventory coverage in cathode active material and precursor manufacturing is being sized for a buffer or safety stock review.

The inputs for this scenario

  • Usable battery-material inventory on hand: 3,000 kg (raised for this scenario; the documented default is 1,200)
  • Average daily material demand: 85 kg / day (unchanged)
  • Safety coverage multiplier: 1.1 x (unchanged)

Working through the calculation

  • Applying the documented formula (Unadjusted coverage days = usable battery-material inventory on hand รท average daily material demand) to the inputs above produces each figure below.
  • At this operating point the engine returns 32.09 days for protected days of supply, the number this scenario is built around.
  • At this operating point the engine returns 35.29 days for unprotected days.
  • At this operating point the engine returns 3,000 pieces for inventory.
  • At this operating point the engine returns 85 pieces / day for daily usage.

How this compares with the baseline

  • Against the tool's baseline example, where usable battery-material inventory on hand sits at 1,200 kg and the headline result is 12.83 days, this scenario comes in 150% above the baseline at 32.09 days.
  • Use it for reorder planning, for stating how many days the line can run on hand, or for stress-testing coverage against a demand spike via the safety multiplier. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Protected days of supply: 32.09 days (headline result)
  • Unprotected days: 35.29 days
  • Inventory: 3,000 pieces
  • Daily usage: 85 pieces / day

Run it with your numbers

  • Every input above is editable in the live Inventory Coverage calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.