Abstract: A method for selectively separating a carbon-containing material from a mixture comprising a positive electrode and a negative electrode originating from electrochemical cells and/or accumulators, the method comprising the following successive steps: a) providing a mixture comprising a positive electrode and a negative electrode, each electrode comprising a current collector, an active material and a binder, the active material of the negative electrode being a carbon-containing material, preferably graphite, b) contacting the mixture comprising the positive electrode and the negative electrode with a separation solution, in the presence of ultrasound, the separation solution comprising a solvent and, optionally, additives, until selectively separating the carbon-containing material from the current collector of the negative electrode, the active material of the positive electrode remaining secured to the current collector of the positive electrode.

Abstract: A method for recycling a battery including the following steps: a) dissolution of a battery waste, for example an electrode, including lithium and a metal selected from cobalt and manganese, such that a solution to be treated containing lithium ions and metal ions is formed, b) addition of a peroxymonosulfate salt to the solution to be treated, the solution to be treated being regulated at a pH ranging from 1 to 4 when the metal is cobalt or at a pH ranging from 0.1 to 2.5 when the metal is manganese, such that the metal ions are selectively precipitated in the form of metal oxyhydroxide, c) separation of the lithium ions from the solution to be treated. Advantageously, the solution further comprises nickel ions.

Abstract: The invention relates to a method for recycling lithium batteries and more particularly batteries of the Li-ion type and the electrodes of such batteries.

Abstract: The invention relates to a method for recycling lithium batteries and more particularly batteries of the Li-ion type and the electrodes of such batteries.