How do you calculate usable cathode material capacity?

Multiply rated output per cycle by scheduled cycles for gross capacity, then multiply by uptime and first-pass yield. Here 4 kg/cycle over 480 cycles gives 1,920 kg gross, and at 90% uptime and 97% yield that becomes 1,676.16 kg usable.

What is the capacity gap in this example?

Gross is 1,920 kg but usable is 1,676.16 kg, a gap of about 244 kg — 192 kg lost to downtime and 51.84 kg lost to first-pass quality yield.

Should I improve uptime or yield first?

Target the larger loss. In this case downtime removes 192 kg versus 51.84 kg from yield, so uptime work recovers more shippable material here — but always check your own split, it flips on lines with high uptime and low yield.

Why use first-pass yield instead of overall yield?

First-pass yield captures what passes without rework, which is the honest measure of usable capacity. Counting reworked material as good inflates your committable volume and risks over-promising customers.

What is a good uptime and yield for a CAM line?

Mature precursor and CAM lines often run 85-92% uptime and 95-98% first-pass yield; new lines in ramp run well below both. The 90% and 97% defaults reflect a reasonably mature line.

Does this account for material I can recover or reblend?

No. It treats first-pass losses as gone. If you recover or reblend off-spec CAM, your true usable capacity sits between the gross and the figure shown here.

Cathode Active Material & Precursor Manufacturing calculator

Capacity Gap Calculator

Capacity Gap converts a CAM or precursor line's nameplate output into the kilograms you can realistically ship, after equipment downtime and first-pass quality losses are taken out. For a co-precipitation reactor or a calcination line, rated output per cycle rarely survives contact with real uptime and yield — and the gap between gross schedule and usable capacity is where missed delivery commitments hide. Operations and S&OP planners use it to see, in kilograms, how much capacity downtime and scrap are quietly removing, so they can promise realistic volumes to battery customers and target the bigger of the two losses. It matters because in CAM scale-up, yield and uptime improvements often unlock more shippable material than buying another reactor.

What this calculator does

Estimate usable CAM or precursor production capacity and identify the gap created by uptime and first-pass yield losses.
Use it when capacity gap in cathode active material and precursor manufacturing is being asked to take on more work and you need to know if there is room.
It multiplies rated output by scheduled cycles to get gross capacity, then applies uptime and first-pass yield to give usable shippable capacity plus the losses to each.

Formula used

Gross scheduled material capacity = rated output per production cycle × planned production cycles
Usable CAM or precursor capacity = gross scheduled material capacity × expected equipment uptime × expected first-pass quality yield

Inputs explained

Rated CAM output per reactor cycle:
Scheduled cycles in the period:
Expected reactor/calciner uptime:
Expected first-pass quality yield:

How to use the result

Use it for period capacity planning, customer volume commitments, and to decide whether to chase uptime or yield first.
It assumes uptime and yield are independent multipliers — it does not model rework recovery, blending of off-spec material, or ramp effects on a new line.

Common questions

How do you calculate usable cathode material capacity? Multiply rated output per cycle by scheduled cycles for gross capacity, then multiply by uptime and first-pass yield. Here 4 kg/cycle over 480 cycles gives 1,920 kg gross, and at 90% uptime and 97% yield that becomes 1,676.16 kg usable.
What is the capacity gap in this example? Gross is 1,920 kg but usable is 1,676.16 kg, a gap of about 244 kg — 192 kg lost to downtime and 51.84 kg lost to first-pass quality yield.
Should I improve uptime or yield first? Target the larger loss. In this case downtime removes 192 kg versus 51.84 kg from yield, so uptime work recovers more shippable material here — but always check your own split, it flips on lines with high uptime and low yield.
Why use first-pass yield instead of overall yield? First-pass yield captures what passes without rework, which is the honest measure of usable capacity. Counting reworked material as good inflates your committable volume and risks over-promising customers.
What is a good uptime and yield for a CAM line? Mature precursor and CAM lines often run 85-92% uptime and 95-98% first-pass yield; new lines in ramp run well below both. The 90% and 97% defaults reflect a reasonably mature line.

Last reviewed 2026-05-12.