Additive & advanced manufacturing

Battery electrode coating defects

Detect pinholes, agglomerates, streaks, and uncoated patches on electrode coatings.

Modalities:Web imagingFlatbed scanMicroscopy
Coated lithium-ion battery electrode on foil showing a ragged, chattered uncoated edge defect
53
Defects
0.7 /m2
Density
0.4 mm
Largest

Example outputs shown for illustration. Numbers depend on your samples and protocol.

Image: Amin et al., Small Methods 2025 9:2402079, CC BY 4.0

What you get

Defect count by type
Pinhole / agglomerate / streak class
Defect density per m2
Uncoated-area map
Location log

The measurement, today

Electrode coating is inspected by eye on a moving web. Pinholes and small agglomerates pass at line speed, and defect density is never quantified per unit area.

What it costs

A pinhole or agglomerate becomes a weak point that can drive a short or early capacity loss in the cell. Found on the web, the coating can be rejected; found in a finished cell, the whole cell is scrap.

From image to reviewed result

  1. 1

    Image the web

    Capture coated electrode under even illumination, on the line or a sampled strip.

  2. 2

    Find the defects

    Regions that depart from uniform coating are detected.

  3. 3

    Classify by type

    Each defect is labelled pinhole, agglomerate, streak, or uncoated patch.

  4. 4

    Normalise per area

    Counts become a defect density per square metre with a location log.

Scope: Detects coating defects visible at the imaged surface and classifies them by type. Their electrical consequence depends on cell design and is confirmed by cell testing.

Send a sample image and a measurement goal

We will show the closest ConductVision workflow and flag what needs custom validation for your images.