期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2024-10-22 |
| 作品名稱 | High-entropy layered oxide cathode materials with moderated interlayer spacing and enhanced kinetics for sodium-ion batteries |
| 作品名稱（其他語言） | |
| 著者 | Zefu Huang; Shijian Wang; Xin Guo; Frederick Marlton; Yameng Fan; Wei-Kong Pang; Tao Huang; Jun Xiao; Dongfang Li; Hao Liu; Qinfen Gu; Cheng-Chieh Yang; Chung-Li Dong; Bing Sun; Guoxiu Wang |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Advanced Materials 36(50), 2410857 |
| 摘要 | Sodium-ion batteries (SIBs) with low cost and environmentally friendly features have recently attracted significant attention for renewable energy storage. Sodium layer oxides stand out as a type of promising cathode material for SIBs owing to their high capacity, good rate performance, and high compatibility for manufacturing. However, the poor cycling stability of layer oxide cathodes due to structure distortion greatly impacts their practical applications. Herein, a high entropy doped Cu, Fe, and Mn-based layered oxide (HE-CFMO), Na0.95Li0.05Mg0.05Cu0.20Fe0.22Mn0.35Ti0.13O2 for high-performance SIBs, is designed. The HE-CFMO cathode possesses high-entropy transition metal (TM) layers with a homogeneous stress distribution, providing a moderated interlayer spacing to maintain the structure stability and enhance Na+ ion diffusion. In addition, Li doping in TM layers increases the Mn valence state, which effectively suppresses John–Teller effect, thus stabilizing the layered structure during cycling. Furthermore, the use of nontoxic and low-cost raw materials benefits future commercialization and reduces the risk of environmental pollution. As a result, the HE-CFMO cathode exhibits a super cycling performance with a 95% capacity retention after 300 cycles. This work provides a promising strategy to improve the structure stability and reaction kinetics of cathode materials for SIBs. |
| 關鍵字 | cathode materials; high entropy; layered oxides; O3-type structure; sodium-ion batteries |
| 語言 | en_US |
| ISSN | 0935-9648; 1521-4095 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | DEU |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/127566 ) |