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| Oxygen-free Roasting to Recycle Cobalt from Electrode Materials of Waste Lithium Ion Batteries |
| Received:January 14, 2017 Revised:February 12, 2017 |
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| DOI：doi：10.3969/j.issn.1007-7545.2017.05.03 |
| KeyWord:waste lithium ion batteries; cobalt; oxygen-free roasting |
| Author | Institution |
| QI Ting |
上海交通大学环境科学与工程学院 |
| CHEN Jiafeng |
上海交通大学环境科学与工程学院 |
| LI Jia |
上海交通大学环境科学与工程学院 |
| XU Zhenming |
上海交通大学环境科学与工程学院 |
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| Abstract: |
| XRD, ICP and TOC were applied to characterize electrode materials obtained by sieving of waste Li-ion batteries. The mechanisms of carbon thermal reduction were investigated by TGA and GC-MS under oxygen-free condition. Under the condition of oxygen-free roasting, anode material graphite in waste lithium-ion battery reacts with cathode material to obtain products of cobalt and lithium carbonate. Cobalt is present in magnetic solid after wet magnetic separation with final recovery rate of 95.12%. |
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