Battery knowledge · Recycling and end of life

Overall recovery

The share of an element in the feed that ends up in the final product after every step of a recycling route, which is the product of the individual step recoveries. Several steps at 95 to 98 % each can bring a route below 90 %.

Also called
chain recovery, route recovery

Example

A route recovers the product of its steps

R = 0.920 × 0.980 × 0.990 × 0.980 = 0.875, 2.5 points under the 90 % the EU asks for cobalt, nickel and copper by the end of 2027. With the other factors fixed, the black-mass yield reaches that row from 0.947.

Each factor is held fixed and independent of the others, and metal that is not lost is counted as product. Real plants trade the factors off, and product purity is not modelled. The defaults are the study’s cited process figures for nickel and cobalt.

Explore the graph

Each unit passes on a share of what reaches it; the recovery through the route is their product.

Share of the metal not yet lost, unit by unit
Share of the metal not yet lost, unit by unitUnit: 0 feed, 1 shred and separate, 2 leach, 3 purify, 4 solvent extraction versus Share of the feed (%). Not yet lost; EU row for 2027: 90 %; EU row for 2031: 95 %. Interpretation follows the graphs.8008519029531004Unit: 0 feed, 1 shred andseparate, 2 leach, 3 purify, 4solvent extractionShare of the feed (%)
Not yet lostEU row for 2027: 90 % (dashed)EU row for 2031: 95 %
Chain recovery against black-mass yield
Chain recovery against black-mass yieldBlack-mass yield versus Chain recovery (%). Chain recovery; EU row for 2027: 90 %; EU row for 2031: 95 %. Interpretation follows the graphs.700.877.50.85850.992.50.951001Black-mass yieldChain recovery (%)
Chain recoveryEU row for 2027: 90 % (dashed)EU row for 2031: 95 %

R = 0.920 × 0.980 × 0.990 × 0.980 = 0.875, 2.5 points under the 90 % the EU asks for cobalt, nickel and copper by the end of 2027. With the other factors fixed, the black-mass yield reaches that row from 0.947.

R = y_black mass × η_leach × (1 − c_cake) × r_extraction

Illustrative model. Each factor is held fixed and independent of the others, and metal that is not lost is counted as product. Real plants trade the factors off, and product purity is not modelled. The defaults are the study’s cited process figures for nickel and cobalt.

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.

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.