Battery knowledge · Manufacturing

Slot die

A precision coating head that extrudes slurry through a narrow slot onto the foil. It sets the coating width and thickness by pump rate and line speed, and can coat in intermittent patches to leave bare foil for tabs. [1]

Example

Manufacturing: an example situation

An electrode can meet coating mass targets but fail adhesion or moisture checks later.

Read Slot die alongside Areal loading in this context. How much active material, or capacity, an electrode carries per square centimetre of foil, typically 2–5 mAh/cm². Higher loading raises energy density but lengthens the ion path, which limits fast charging.

Use in Lemonergy

Place operations and quality checks in process order.

This is a reference concept. No executable Lemonergy block has been verified for this term.

References & further reading

Technical references

  1. Current and future lithium-ion battery manufacturing

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

    Technical reference · Electrode preparation, cell assembly, formation and manufacturing trade-offs.