A method of extracting lithium from an electric battery comprising solid metallic lithium.

摘要

The invention relates to a method (300) for extracting lithium from an assembly of at least one electric battery cell comprising solid metallic lithium, such as a Lithium-Metal-Polymer battery, said method (300) comprising an extraction phase (306) comprising the following steps: positioning (308) of said assembly (200) in an orientation in which a first edge (110) of said assembly (200) from which protrudes one (or more) negative electrode (s) (102) is located above a second edge (112) of said assembly (200), opposite (112) from said first edge (110), and from which protrudes (s) a positive electrode (s) (104); a step (309) of immersing the assembly (200) of cell (s) in a liquid (510) denser than liquid lithium and electrically insulating, and heating (310) of said assembly to a so-called treatment temperature , greater than or equal to the melting temperature of said solid metallic lithium. It also relates to an installation implementing such a method. Abstract figure: Fig. 3