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http://dx.doi.org/10.7844/kirr.2022.31.5.34

Comparison of Li(I) Precipitation from the Leaching Solution of the Dust from Spent Lithium-ion Batteries Treatment between Sodium Carbonate and Ammonium Carbonate  

Nguyen, Thi Thu Huong (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Lee, Man Seung (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Publication Information
Resources Recycling / v.31, no.5, 2022 , pp. 34-41 More about this Journal
Abstract
Smelting reduction of spent lithium-ion batteries results in metallic alloys, slag, and dust containing Li(I). Precipitation of Li2CO3 was performed using the synthetic leachate of the dust. Herein, the effects of the precipitant and addition of non-aqueous solvents on the precipitation of Li(I) were investigated. Na2CO3 was a more effective precipitating agent than (NH4)2CO3 owing to the hydrolysis reaction of dissolved ammonium and carbonate. The addition of acetone or ethanol improved the Li(I) precipitation percentage for both the precipitants. When using (NH4)2CO3, the Li(I) precipitation percentage increased at a solution pH of 12. Under the same conditions, the Li(I) precipitation percentage using Na2CO3 was much higher than that using (NH4)2CO3.
Keywords
spent lithium-ion battery; Li dust; precipitation; Li(I) carbonate; non-aqueous;
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Times Cited By KSCI : 1  (Citation Analysis)
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