Process for the recovery of a useful material from a battery
AssigneeMaterials Processing Institute
InventorsChristopher Alan SMITH, Tutu SEBASTIAN, Simon John BLANCHARD
Life of this patent
Estimating the term…
Abstract
A process for the recovery of a useful material from a battery, comprising the steps of: comminuting, discharging and shredding a battery to form a feed stream comprising anode material, cathode material and an electrolyte; removing the electrolyte from the feed stream; separating the anode material and cathode material from the feed stream into distinct material streams using (electro)magnetic separation; and treating the anode material stream to obtain a graphite product and/or treating the cathode material stream to obtain a cathode active material product.
Claims22
A process for the recovery of a useful material from a battery, comprising the steps of:
- (a) treating at least part of a battery to form a feed stream comprising anode material, cathode material and an electrolyte;
- (b) removing the electrolyte from the feed stream to provide a processed battery feedstock;
- (c) separating the anode material and cathode material from the processed battery feedstock into distinct anode material and cathode material streams by means of (electro)magnetic and/or electrostatic separation;
- and
- (d) treating the anode material stream to obtain a graphite product and/or treating the cathode material stream to obtain a cathode active material product.
A processed feedstock for recovery of graphite and/or cathode active material comprising dried, comminuted, particulate residue comprising at least two fractions, a first fraction comprising graphite in association with a binder, and a second fraction comprising cathode active material in association with a binder.
Dependencies are inferred from the claim text.