Skip to Main content Skip to Navigation
New interface
Journal articles

Chemical processes for the recovery of valuable metals from spent nickel metal hydride batteries: A review

Abstract : This work proposes a review of the various unit operations described in the literature for the specific recycling of nickel metal hydride batteries, with a large focus on the chemical reactions and processes. After a brief presentation of the characteristics of spent nickel metal hydride batteries and their composition, this review first describes the physical pretreatment methods, followed by the main principles and challenges of element separation by pyrometallurgy. Then, the main steps of hydrometallurgical processes (leaching, selective precipitation, solvent extraction, electrowinning) are analyzed, focusing on explaining the main difficulties and the most promising solutions. In addition, when available, recent thermodynamic models have been used to calculate equilibria for both pyrometallurgical and hydrometallurgical systems, with a view to provide elements of understanding in the choice of operating conditions for unit operations.
Document type :
Journal articles
Complete list of metadata

https://hal-cnrs.archives-ouvertes.fr/hal-03863165
Contributor : Béatrice BISCANS Connect in order to contact the contributor
Submitted on : Monday, November 21, 2022 - 12:26:16 PM
Last modification on : Monday, November 21, 2022 - 12:26:22 PM

Identifiers

  • HAL Id : hal-03863165, version 1

Collections

Citation

Laurent Cassayre, Boris Guzhov, Margot Zielinski, Béatrice Biscans. Chemical processes for the recovery of valuable metals from spent nickel metal hydride batteries: A review. Renewable and Sustainable Energy Reviews, 2022, 170. ⟨hal-03863165⟩

Share

Metrics

Record views

0