Green recycling of spent LiCoO 2 cathodes using a water-based deep eutectic solvent
文献类型：期刊论文
| 作者 | Wu, Xi1,2; Liu, Zhenzhen1,2; Li, Huaimeng2; Fu, Zhen2; Zhang, Guofeng2; Zhang, Haimin1,2; Wang, Guozhong1,2 ; Zhang, Yunxia1,2
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| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
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| 出版日期 | 2025-02-19 |
| 卷号 | 354 |
| 关键词 | SpentLiCoO2 Recycling Water-based deep eutectic solvent Lithium Cobalt |
| ISSN号 | 1383-5866 |
| DOI | 10.1016/j.seppur.2024.128808 |
| 通讯作者 | Zhang, Yunxia(yxzhang@issp.ac.cn) |
| 英文摘要 | Faced with the exponential growth of lithium-ion batteries (LIBs) and concomitant negative impact after retirement, it is imperative to explore green, efficient and closed-loop recycling of spent LIBs from the perspective of resource reutilization and environmental conservation. Herein, a water-based deep eutectic solvent (denoted as W-DES) composed of choline chloride (ChCl) and lactic acid (LA) is proposed for Co and Li recovery from spent LiCoO 2 cathode materials. Such an aqueous leaching system containing 1:3 M ratio of ChCl: LA diluted with 90 vol% H 2 O can effectively extract Li and Co from LiCoO 2 , yielding the respective 97.15 % and 95.20 % of leaching efficiency under the optimum conditions. After leaching, the dissolved cobalt and lithium species are recovered in the form of CoC 2 O 4 & sdot;2H 2 O and Li 2 CO 3 precipitates, which are further utilized for the insitu regeneration of LiCoO 2 . Remarkably, the regenerated LiCoO 2 possesses an excellent electrochemical performance, delivering an initial discharge specific capacity of 136.0 mAh/g at 0.5C and 87.43 % of capacity retention rate after 100 cycles, comparable to those of the commercially available LiCoO 2 , thus highlighting the feasibility of the proposed closed-loop recycling route. |
| WOS关键词 | LITHIUM-ION BATTERY ; CHOLINE CHLORIDE ; RECOVERY ; COBALT ; LI ; METALS ; OXIDE |
| 资助项目 | National Natural Science Foundation of China[52173268] ; National Natural Science Foundation of China[52371145] ; Anhui Provincial Natural Science Foundation[2308085QB73] ; HFIPS Director's Fund[YZJJ-GGZX-2022-01] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001273638300001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; HFIPS Director's Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/137301]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Yunxia |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Ctr Environm & Energy Nanomat,Key Lab Mat Phys,Anh, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Xi,Liu, Zhenzhen,Li, Huaimeng,et al. Green recycling of spent LiCoO 2 cathodes using a water-based deep eutectic solvent[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2025,354. |
| APA | Wu, Xi.,Liu, Zhenzhen.,Li, Huaimeng.,Fu, Zhen.,Zhang, Guofeng.,...&Zhang, Yunxia.(2025).Green recycling of spent LiCoO 2 cathodes using a water-based deep eutectic solvent.SEPARATION AND PURIFICATION TECHNOLOGY,354. |
| MLA | Wu, Xi,et al."Green recycling of spent LiCoO 2 cathodes using a water-based deep eutectic solvent".SEPARATION AND PURIFICATION TECHNOLOGY 354(2025). |
入库方式： OAI收割
来源：合肥物质科学研究院
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