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A “grave-to-cradle” process for the recycling of spent mixed-cathode materials (LiCoO2, LiCo1/3Ni1/3Mn1/3O2, and LiMn2O4) has been proposed. The process comprises an acid leaching followed by the resynthesis of a cathode material from the resulting leachate. Spent cathode materials were leached in citric acid (C6H8O7) and hydrogen peroxide (H2O2). Optimal leaching conditions were obtained at a leaching...
We investigated an environmentally friendly leaching process for the recovery of cobalt and lithium from the cathode active materials of spent lithium-ion batteries. The easily degradable organic acid DL-malic acid (C 4 H 5 O 6 ) was used as a leaching reagent. The structural, morphology of the cathode materials before and after leaching were characterized by X-ray diffraction...
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