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Recovery of metal values from a mixture of spent lithium-ion batteries and nickel-metal hydride batteries
- Source :
-
Hydrometallurgy . Oct2006, Vol. 84 Issue 1/2, p75-80. 6p. - Publication Year :
- 2006
-
Abstract
- Abstract: A novel process for the recovery of metal values from a mixture of spent lithium-ion batteries (LIBs) and nickel-metal hydride (NiMH) batteries is presented. The iron shells of spent batteries were firstly dismantled using a specially designed dismantling machine. Then after the separation of aluminum substrate and electrolyte and the subsequent heating treatment, iron shells and metal-mesh substrate in the dismantled substances were effectively separated with a sieve. The powder residues including LiCoO2, copper oxides, metal nickel and hydrogen storage alloy and their oxides were dissolved using 3 mol Lā1 H2SO4 +3 wt.% H2O2 at 70 °C, S/L=1:15 for 5 h. Finally, rare earths (RE) were precipitated as sodium RE double sulfate, copper was extracted as CuSO4 with 10 wt.% Acorga M5640 at pH=1.5ā1.7, cobalt and nickel were extracted as their sulfates with 1 M Cyanex272 at pH=5.1ā5.3 and 6.3ā6.5, respectively. The experimental results showed that the recovery exceeded 94% for all metal values. [Copyright &y& Elsevier]
- Subjects :
- *METAL recycling
*LITHIUM-ion batteries
*CHEMICAL processes
Subjects
Details
- Language :
- English
- ISSN :
- 0304386X
- Volume :
- 84
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Hydrometallurgy
- Publication Type :
- Academic Journal
- Accession number :
- 22221522
- Full Text :
- https://doi.org/10.1016/j.hydromet.2006.03.059