Synergistic modification of Ni-rich full concentration gradient materials with enhanced thermal stability
文献类型：期刊论文
| 作者 | Zhang, Chi1,2; Li, Tao2; Xue, Bing1; Wu, Xiangkun1; Li, Liyuan1,2; Guo, Yawei1,3; Zhang, Lan1 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023 |
| 卷号 | 451页码:10 |
| 关键词 | Lithium battery Ni-rich cathode material Concentration gradient Thermal stability High-temperature performance |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2022.138518 |
| 英文摘要 | 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. |
| WOS关键词 | OXIDE CATHODE MATERIALS ; HIGH-VOLTAGE ; ELECTROCHEMICAL PERFORMANCE ; LI ; MECHANISM ; LAYER ; IMPROVEMENT ; STRATEGIES ; INTERFACES ; CAPACITY |
| 资助项目 | 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研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000840998000001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | 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 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/54444]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Lan |
| 作者单位 | 1.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 2.Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China 3.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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