Current collector

Example

Use in Lemonergy

Connect each material with its function.

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

Learn it in Lesson 1 · Cell anatomy →

Connected concepts

Related concepts from the knowledge graph. Connections show context, not cause and effect. Hover or focus a linked term for its definition.

Aluminium foil

The positive current collector, typically 10–15 µm thick. A thin passive film keeps it stable at the high potential of the positive electrode, where copper would corrode.

Copper foil

The negative current collector, typically 6–10 µm thick. Copper is used because it is stable at the low potential of a graphite electrode, where aluminium would alloy with lithium.

Electronic path

The route electrons take during operation: from active particle through carbon additive to the foil, out through the tab and the external circuit, and back in at the other electrode. Everything on it adds resistance.

Tab

The strip of metal that connects an electrode’s foil to the cell terminal: nickel or copper on the negative side, aluminium on the positive. Tab count and width set much of a cell’s resistance and heat generation.

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.

Further reading on this topic

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

2. DOE Explains… Batteries

   U.S. Department of Energy

   Topic background · Introductory account of electrodes, electrolyte and conversion between chemical and electrical energy.