Brevet Année : 2022

Method for dissolving a positive electrode material

Procédé de dissolution d'un matériau d'électrode positive

Résumé

The invention relates to a method for dissolving a positive electrode material of a battery comprising a step during which the positive electrode material, comprising lithium and optionally cobalt and/or nickel, is submerged in an acid solution having a pH between 0 and 4, the acid solution containing either manganese ions or hydrogen peroxide, by means of which the lithium and optionally the cobalt and/or nickel is dissolved, and the manganese ions are selectively precipitated in the form of manganese oxyhydroxide.

Domaines

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Dates et versions

hal-04675869 , version 1 (22-08-2024)

Identifiants

  • HAL Id : hal-04675869 , version 1

Citer

Emmanuel Billy. Method for dissolving a positive electrode material. France, Patent n° : WO2022/208015. 2022. ⟨hal-04675869⟩
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