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| Recovery of Cathode Material from Spent LiCoO2 Materials with Triethanolamine |
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Received:May 22, 2017
Revised:June 15, 2017
Accepted:June 15, 2017
Published Online:September 18, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.10.016 |
| KeyWord:spent LiCoO2 materials; cathode material; triethanolamine; hydro-extraction; recycle |
| Author | Institution |
| Gao yan |
河南省冶金研究所有限责任公司 |
| XU Xiao-ju |
河南省冶金研究所有限责任公司 |
| Li Jin-hui |
江西理工大学 冶金与化学工程学院 |
| Chan Shi-qiang |
河南省冶金研究所有限责任公司 |
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| Abstract: |
| Process to recycle lithium cobalt oxide cathode material directly from scrap of cobalt-aluminium film was investigated. The results show that 81% of lithium cobalt oxide cathode material can be recovered under the conditions including reaction temperature of 50 ℃, reaction time of 2 h, triethanolamine concentration of 0.5 mol/L, ratio of solid to liquid of 0.75/10, and ultrasonic frequency of 18 kHz. The process exerts much fewer damaging effects on lithium cobalt oxide than other strong acid system. With little change on structure and morphology, lithium cobalt oxide can be recycled directly to produce lithium battery. |
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