Knowledge Management System Of Institute of process engineering,CAS
| Synergistic modification of Ni-rich full concentration gradient materials with enhanced thermal stability | |
| Zhang, Chi1,2; Li, Tao1; Xue, Bing2; Wu, Xiangkun2; Li, Liyuan1,2; Guo, Yawei2,3; Zhang, Lan2 | |
| 2023 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| Volume | 451Pages:10 |
| Abstract | Major challenge hindering the large-scale applications of Ni-rich cathode materials (CAMs) lies on the poor cycle (especially under elevated temperature or high cutoff voltage) and thermal stability due to the highly reactive Ni4+. Herein, the full concentration strategy is combined with Ti pillar and Li2ZrO3 (LZO) coating modification, on which a high-performance CAM with elevated kinetics and stability, CGTZ-1, is obtained. It proves that both cycle and thermal stability can be greatly enhanced by the concentration gradient design and the LZO coating. Whereas the promoted Li+ diffusion coefficient is largely attributed to the Ti pillar. The optimal resultant CAM shows high capacity retention of 88.1% after 200 cycles under 55 degrees C, while that of pristine is only 32.1%. More importantly, it also shows a high thermal release temperature of 261.5 degrees C (vs 222.3 degrees C of the pristine), which demonstrates the effectiveness of this synergistic modification strategy. |
| Keyword | Lithium battery Ni-rich cathode material Concentration gradient Thermal stability High-temperature performance |
| DOI | 10.1016/j.cej.2022.138518 |
| Language | 英语 |
| WOS Keyword | OXIDE CATHODE MATERIALS ; HIGH-VOLTAGE ; ELECTROCHEMICAL PERFORMANCE ; LI ; MECHANISM ; LAYER ; IMPROVEMENT ; STRATEGIES ; INTERFACES ; CAPACITY |
| Funding Project | National Key Research and Development Program of China[2019YFA0705600] ; National Nat-ural Science Foundation of China[21878308] ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China[21921005] ; Hebei Natural Science Foundation[B2020103028] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| Funding Organization | National Key Research and Development Program of China ; National Nat-ural Science Foundation of China ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China ; Hebei Natural Science Foundation |
| WOS ID | WOS:000840998000001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/54445 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Lan |
| Affiliation | 1.Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc,State Key L, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Chi,Li, Tao,Xue, Bing,et al. Synergistic modification of Ni-rich full concentration gradient materials with enhanced thermal stability[J]. CHEMICAL ENGINEERING JOURNAL,2023,451:10. |
| APA | Zhang, Chi.,Li, Tao.,Xue, Bing.,Wu, Xiangkun.,Li, Liyuan.,...&Zhang, Lan.(2023).Synergistic modification of Ni-rich full concentration gradient materials with enhanced thermal stability.CHEMICAL ENGINEERING JOURNAL,451,10. |
| MLA | Zhang, Chi,et al."Synergistic modification of Ni-rich full concentration gradient materials with enhanced thermal stability".CHEMICAL ENGINEERING JOURNAL 451(2023):10. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment