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Why suspensions

Everything we coat begins as a suspension

Battery electrodes, fuel-cell catalyst layers, and functional films all start as concentrated suspensions — slurries, inks, and pastes whose flow decides whether the process succeeds.

Process chain

From slurry to electrode to cell

Mixing, storage, transport, coating, drying — the slurry passes through every one of them before it becomes a thin, uniform particle film.

From slurry to electrode to cell

Rheological properties

Rheological properties of suspensions

Yield stress, viscoelasticity, thixotropy, and shear thinning each govern a different corner of the process — from mixing and storage to the coater itself.

Rheological properties of suspensions

Flow & memory

Microstructure links flow to rheology

Flow history alters particle contacts and their relaxation — so a measurement reports the structure a slurry has now, and the structure it remembers.

Microstructure links flow to rheology

Microstructure

Complex hierarchical microstructures

Graphite, carbon black, and CMC span three orders of magnitude in size — adsorption, clustering, and network formation all happen at once.

Complex hierarchical microstructures

How we look

Microstructure characterization methods

Microscopy, scattering, and rheology are complementary — we add low-field NMR relaxometry and rheo-impedance to probe slurries without diluting them.

Microstructure characterization methods