Materials and diagnostics

Electrochemical materials development and diagnostics.

Materials-led development and diagnostics that find the failure mode, the performance limit and the better route to improvement.

What we look at

Where materials behaviour becomes device behaviour.

Catalysts and electrocatalysis

Activity, stability and the gap between half-cell results and full-cell performance.

Electrodes and interfaces

Structure, wetting and contact behaviour that decide whether a material works in a device.

Coatings and corrosion

Protective coatings for bipolar plates and transport layers, and how they fail.

Degradation and failure analysis

Linking performance loss to a physical mechanism instead of a symptom.

Electrochemical diagnostics

Choosing and interpreting techniques so the data answers the actual question.

Manufacturability

Whether a promising material can be made consistently at the needed scale and cost.

Typical questions

Questions teams bring to us

  • Is the material improvement real, or an artefact of the test?
  • Which failure mode should the next experiment isolate?
  • Will the component survive integration and manufacturing?

How evidence is built

Methods we design test plans around and interpret

  1. Electrochemical impedance spectroscopy

    Separating charge-transfer, transport and resistive contributions.

  2. Cyclic voltammetry and RDE testing

    Screening activity while being clear about what half-cell data cannot tell you.

  3. Accelerated stress tests

    Targeted protocols that age the material the way the application will.

  4. Post-mortem characterisation

    Microscopy and surface analysis planned to explain an observed failure.

Frequently asked questions

Why do good half-cell results not always translate into a working device?

Half-cell tests isolate the catalyst under idealised conditions. In a device, transport, interfaces, ionomer and operating conditions all change the picture, so results need confirming at cell level.

Which diagnostic techniques does Redionix work with?

Polarisation curves, impedance spectroscopy, cyclic voltammetry, accelerated stress tests and post-test characterisation are among the techniques Redionix designs test plans around and interprets. The choice follows the question, not the instrument.

Can you review a materials development plan?

Yes. The review checks whether the planned tests can separate real improvements from artefacts and whether the work is moving toward a device-relevant result.

Working on something in this area?

Describe the system, the decision and the evidence you already have. That is enough for a useful first conversation.