How do you calculate electrode width utilization?

Divide usable coated electrode width by the available foil web width. With 920 mm coated on a 1,000 mm web, utilization is 92%, which is 2 points below a 94% target.

What is a good electrode width utilization?

High-volume coating lines often target 92-96% across the web; the rest is uncoated margin and edge trim. The 92% default is solid but still 2 points short of a 94% target, worth recovering at scale.

What does the width utilization gap mean?

It is the points of utilization between where you are and your target. A 2-point gap on a 1,000 mm web is 20 mm of width you could convert from scrap margin to coated active material.

Why does electrode width utilization matter for cost?

Uncoated and trimmed foil width is wasted cathode or anode material, the most expensive part of a cell. Each point of width utilization directly lowers material cost per kWh, so a 2-point recovery is real money at volume.

How do I improve electrode width utilization?

Reduce uncoated edge margins, optimize the slitting layout to fit more lanes, and tighten edge-trim. Each move raises the 920 mm usable width toward the 1,000 mm web and closes the gap to target.

Does width utilization capture all coating waste?

No — it only covers the cross-web direction. Length-direction losses from coating start-stop, defects, splices and changeovers are separate and must be tracked to get true material yield.

EV & Battery Manufacturing calculator

Electrode Width Utilization Calculator

Electrode width utilization measures how much of your foil web actually carries usable coated active material versus how wide the web is. On a battery electrode coating and slitting line, the uncoated edges, coating-free margins and edge-trim losses are pure scrap of expensive cathode or anode material, so this percentage is a direct lever on material yield and cost per kWh. Coating, slitting and cost engineers track it to push utilization toward the line's mechanical limit, justify wider coating patterns, and benchmark against a target. The companion width-utilization gap shows exactly how many points you sit below where you want to be.

What this calculator does

Calculate electrode web width utilization from coated usable width, available foil width, and target utilization.
a coating or slitting engineer needs to evaluate electrode layout, edge trim, and usable web width
It computes the ratio of usable coated electrode width to total foil web width, and the gap between that utilization and your target.

Formula used

Electrode width utilization = usable coated electrode width ÷ available foil/web width
Width utilization gap = target utilization - calculated utilization

Inputs explained

Usable coated electrode width:
Available foil/web width:
Target width utilization:

How to use the result

Use it when optimizing coating patterns, slitting layouts, or edge-trim settings to raise active-material yield on the electrode line.
It only addresses cross-web width utilization — it ignores length-direction losses from start-stop coating, defects and changeovers, so it overstates total material yield on its own.

Current U.S. benchmarks

As of May 2026, U.S. manufacturing runs at 75.6% of capacity (Federal Reserve via FRED), up 0.2 points from a year earlier. Enter your own plant's utilization; the national figure is a reference point for how loaded the industry is.
The producer price index for copper and brass mill shapes stands at 559.593 (BLS, May 2026), up 76.8% from a year earlier. Quotes priced off last quarter's material cost miss this move. Global copper trades at $13,484 per tonne (IMF via FRED, May 2026).
U.S. light vehicles sell at a 16.9 million annual rate (BEA, Jun 2026), up 4.1% from a year earlier, the volume signal for automotive supply chains.
Global copper trades at $13,484 per tonne (IMF via FRED, May 2026), up 41.5% in a year, and U.S. industrial electricity averages 8.66 cents per kWh. Both feed electrified-hardware unit economics.
The U.S. has 11,691 transportation equipment establishments employing about 1,682,910 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate electrode width utilization? Divide usable coated electrode width by the available foil web width. With 920 mm coated on a 1,000 mm web, utilization is 92%, which is 2 points below a 94% target.
What is a good electrode width utilization? High-volume coating lines often target 92-96% across the web; the rest is uncoated margin and edge trim. The 92% default is solid but still 2 points short of a 94% target, worth recovering at scale.
What does the width utilization gap mean? It is the points of utilization between where you are and your target. A 2-point gap on a 1,000 mm web is 20 mm of width you could convert from scrap margin to coated active material.
Why does electrode width utilization matter for cost? Uncoated and trimmed foil width is wasted cathode or anode material, the most expensive part of a cell. Each point of width utilization directly lowers material cost per kWh, so a 2-point recovery is real money at volume.
How do I improve electrode width utilization? Reduce uncoated edge margins, optimize the slitting layout to fit more lanes, and tighten edge-trim. Each move raises the 920 mm usable width toward the 1,000 mm web and closes the gap to target.

Last reviewed 2026-05-12.