Solids content

Example

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Place operations and quality checks in process order.

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Coating

Applying slurry to the moving foil at a controlled wet thickness, usually with a slot die, often on both sides. Coating weight per area must be held within about one percent across the web, because every downstream property depends on it.

Drying

Evaporating the solvent from the wet coating in an oven tens of metres long. Drying too fast drives binder to the surface and weakens adhesion to the foil; it is the most energy-hungry step in the plant.

Slurry

The mixture of active material, conductive carbon, binder and solvent that is coated onto a current-collector foil to make an electrode. Positive slurries use NMP as solvent; graphite slurries are water-based.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. Current and future lithium-ion battery manufacturing

   Yangtao Liu, Ruihan Zhang, Jun Wang, Yan Wang · iScience · 2021

   Topic background · Electrode preparation, cell assembly, formation and manufacturing trade-offs.