Lithium Ion Battery Recycling Method of Metal Recovery from Raw Materials

Title:

Lithium Ion Battery Recycling Method of Metal Recovery from Raw Materials

Document Type and Number:

Japanese Patent JP6334450

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a recovery method of metals from a recycled raw material of a lithium-ion battery, which can reduce a treatment cost.SOLUTION: The recovery method of metals from a recycled raw material of a lithium-ion battery is a method for recovering object metals from the recycled raw material of a lithium-ion battery containing lithium, manganese, and one or more elements selected from nickel and cobalt. The recovery method comprises: a leaching step where the object metals are leached and at least a portion of manganese is left in the residue by contacting the recycled raw material of a lithium-ion battery with an acid and by adding thereto a hydrogen peroxide solution; a separation step where the residue is separated from a liquid after leaching obtained in the leaching step to obtain a liquid after separation; and a recovery step where the object metals are recovered from the liquid after separation.SELECTED DRAWING: Figure 1

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Inventors:

Yokota Takuya
Junichi Ito

Application Number:

JP2015067583A

Publication Date:

May 30, 2018

Filing Date:

March 27, 2015

Export Citation:

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