Method for reproducing positive electrode material
AssigneesPrime Planet Energy & Solutions, Inc., The University of Tokyo
InventorsShinya SUZUKI, Takanari OUCHI
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Abstract
The present invention provides a novel method capable of recovering Ni and Co from a battery waste containing Ni and Co while adjusting an Ni/Co ratio. The method for reproducing the positive electrode material according to the present disclosure includes a step of leaching Ni and Co, using an ammonia aqueous solution containing ammonia and ammonium sulfate, from a battery waste containing Ni and Co into the ammonia aqueous solution. Herein, oxygen is fed to the ammonia aqueous solution in the leaching.
Claims7
A method for reproducing a positive electrode material, comprising:
- a step of leaching Ni and Co, using an ammonia aqueous solution containing ammonia and ammonium sulfate, from a battery waste containing Ni and Co into the ammonia aqueous solution, wherein
- oxygen is fed to the ammonia aqueous solution in the leaching.
Dependencies are inferred from the claim text.