Density separation

Example

Use in Lemonergy

Distinguish recovered material from a qualified product.

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

Connected concepts

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

Eddy-current separation

Ejecting non-ferrous metals such as aluminium from a moving stream with a rapidly rotating magnetic field, which induces currents in conductive pieces and throws them off the belt. It recovers casing and foil aluminium.

Mechanical pre-treatment

The front end of most recycling plants: shredding cells or modules, drying off the electrolyte and separating the stream into casings, copper and aluminium foil, plastics and black mass. How cleanly this is done sets the purity, and the cost, of everything downstream.

Sieving and classification

Splitting shredded material by particle size: the fine fraction is mostly black mass, the coarse fractions mostly foil, casing and separator. Air classifiers do the same by size and density in a gas stream.

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. Lithium-Ion Battery Recycling

   U.S. Environmental Protection Agency

   Topic background · Battery construction, recycling routes and U.S. waste-management context.

2. Recycling lithium-ion batteries from electric vehicles

   Gavin Harper et al. · Nature · 2019

   Topic background · Reuse, disassembly and mechanical, hydro-, pyro- and direct recycling routes.