Knowledge Management System Of Institute of process engineering,CAS
| Epitaxial Regeneration of Spent Graphite Anode Material by an Ecofriendly In-Depth Purification Route | |
| Da, Haoran1,2; Gan, Min3; Jiang, Danfeng1; Xing, Chunxian1; Zhang, Zhouyang3; Fei, Linfeng3; Cai, Yingjun1; Zhang, Haitao1,2,4; Zhang, Suojiang1,2 | |
| 2021-12-06 | |
| Source Publication | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| ISSN | 2168-0485 |
| Volume | 9Issue:48Pages:16192-16202 |
| Abstract | Recovery of spent graphite (SG) anode has been largely overlooked and undervalued due to the difficult regeneration process and the relative low price of graphite compared to valuable elements in the cathode. Moreover, lacking feasible low-cost techniques for the recovery of SG seriously restricts the development of all-component recycling of end-of-life batteries. Here, a novel in-depth purification process via KOH-NaOH composite alkali etching is proposed to eliminate impurities incorporated in SG. Residual acid-insoluble impurities, such as Al- and Fe-related compounds, can be removed effectively by alkali roasting treatment at 180-300 degrees C. Furthermore, in situ TEM investigation is conducted to unravel the gradual graphitization of the coating layer and the construction of Li+ transport channels between the newly formed structures and the original graphite bulk particles via an epitaxial growth manner during the regeneration process. After optimized purification and regeneration treatments, the recycled graphite can be used suitably as a regenerated anode, and a full cell containing commercial LiFePO4 and recycled graphite shows satisfactory capacity retention of 85.8% after 500 cycles at 1 C. This work demonstrates a promising recyclization route of SG anodes. |
| Keyword | spent graphite recycling purification regeneration structural repairment |
| DOI | 10.1021/acssuschemeng.1c05374 |
| Language | 英语 |
| WOS Keyword | LITHIUM-ION BATTERIES ; NATURAL GRAPHITE ; LI-ION ; ELECTRODE MATERIALS ; RECYCLING LITHIUM ; PERFORMANCE ; RECOVERY ; DEGRADATION ; KOH ; CATHODE |
| Funding Project | National Key Research and Development Program of China[2019YFA0705603] ; Key Science and Technology Special Project of Henan Province[202102210106] ; Zhengzhou major Science and technology projects[2019CXZX0074] ; Key Program of Chinese Academy of Sciences[ZDRW_CN_2020-1] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC011] ; Major Program of National Natural Science Foundation of China[21890762] ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China[21921005] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Engineering |
| WOS Subject | Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical |
| Funding Organization | National Key Research and Development Program of China ; Key Science and Technology Special Project of Henan Province ; Zhengzhou major Science and technology projects ; Key Program of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Major Program of National Natural Science Foundation of China ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China |
| WOS ID | WOS:000753959800020 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/51951 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Haitao; Zhang, Suojiang |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Jiangxi, Peoples R China 4.Zhengzhou Inst Emerging Ind Technol, Zhengzhou Key Lab Energy Storage Sci & Technol, Zhengzhou 450003, Peoples R China |
| Recommended Citation GB/T 7714 | Da, Haoran,Gan, Min,Jiang, Danfeng,et al. Epitaxial Regeneration of Spent Graphite Anode Material by an Ecofriendly In-Depth Purification Route[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2021,9(48):16192-16202. |
| APA | Da, Haoran.,Gan, Min.,Jiang, Danfeng.,Xing, Chunxian.,Zhang, Zhouyang.,...&Zhang, Suojiang.(2021).Epitaxial Regeneration of Spent Graphite Anode Material by an Ecofriendly In-Depth Purification Route.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,9(48),16192-16202. |
| MLA | Da, Haoran,et al."Epitaxial Regeneration of Spent Graphite Anode Material by an Ecofriendly In-Depth Purification Route".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9.48(2021):16192-16202. |
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