Cathode Active Material & Precursor Manufacturing worked example

Co-Precipitation Efficiency at 99% target co-precipitation efficiency: a worked example

What does the result look like when target co-precipitation efficiency reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when co-precipitation efficiency in cathode active material and precursor manufacturing needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Metal recovered in precursor solids: 8 kg metal (unchanged)
  • Metal fed to precipitation: 250 kg metal (unchanged)
  • Target co-precipitation efficiency: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Co-precipitation efficiency = metal recovered in precursor solids ÷ metal fed to precipitation × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for co-precipitation efficiency, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for co-precipitation gap to target.
  • At this operating point the engine returns 8 count for metal recovered in precursor solids.
  • At this operating point the engine returns 250 count for metal fed to precipitation.

How this compares with the baseline

  • Against the tool's baseline example, where target co-precipitation efficiency sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • A figure at this level is achievable when target co-precipitation efficiency is genuinely sustained, not just peaked for a shift. Both inputs must be expressed as contained metal mass, not sulfate or hydroxide mass — mixing mass bases produces a meaningless ratio, as the low example result illustrates.

Results at a glance

  • Co-precipitation efficiency: 3.2 % (headline result)
  • Co-precipitation gap to target: 95.8 points
  • Metal recovered in precursor solids: 8 count
  • Metal fed to precipitation: 250 count

Run it with your numbers

  • Every input above is editable in the live Co-Precipitation Efficiency calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.