What question did this study set out to answer?

To explore a method for recovering valuable metals from spent lithium-ion batteries without using acid.

March 4, 2026

Green mechanochemical activation for acid-free recovery of valuable metals from spent lithium-ion battery sulfide residue

Key Points

To explore a method for recovering valuable metals from spent lithium-ion batteries without using acid.
Utilized sulfur-assisted mechanochemical activation
Reconstructed refractory nickel-cobalt sulfides
Conducted oxygen-pressure water leaching
In situ acid generation was achieved
High efficiency in metal recovery without external acids
Demonstrated the potential for eco-friendly recycling methods

Abstract

Sulfur-assisted mechanochemical activation reconstructs refractory Ni–Co sulfides, enabling in situ acid generation and highly efficient oxygen-pressure water leaching without external acid input.

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Green mechanochemical activation for acid-free recovery of valuable metals from spent lithium-ion battery sulfide residue

Key Points

Abstract

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