Enhanced energy storage density and discharge efficiency in potassium sodium niobite-based ceramics prepared using a new scheme
文献类型：期刊论文
| 作者 | Li, YD; Zhen, YH; Wang, WX; Fang, ZQ; Jia, ZL; Zhang, JY; Zhong, H; Wu, JG; Yan, YG; Xue, QZ |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2020-06-01 |
| 期号 | 6页码:2357 |
| ISSN号 | 0955-2219 |
| DOI | 10.1016/j.jeurceramsoc.2020.01.050 |
| 文献子类 | Article |
| 英文摘要 | The development of lead-free ceramics with high recoverable energy density (W-rec) and high energy storage efficiency (eta) is of great significance to the current energy situation. In this work, a new scheme was proposed to improve the W-rec and eta of potassium sodium niobate ((K, Na)NbO3, abbreviated as KNN) lead-free ceramics. Doping El elements in KNN ceramics to form a second phase (K2BiNb5O15) can reduce the grain size and form Schottky-like contact. Meanwhile, the hybridization between the Bi 6p and O 2p orbitals can enhance the maximum polarization (P-max). So the K1-3xBixNa0.5NbO3-1 mol%CuO ceramics was proposed to improve the W-rec of lead-free ceramics. A large W-rec (2.89 J/cm 3 ) and dielectric breakdown strength (DBS) (300 kV/cm with a thickness of 0.2 mm) were achieved for K-0.14 Bi0.12Na0.5NbO3-1 mol%CuO ceramics. The high W ren was supposed to benefit from low remnant polarization (P-r), high Ps and DBS of ceramics. In addition, a large eta (80%) was simultaneously achieved for K1-3xBixNa0.5NbO3-1 mol%CuO ceramics, which is superior to mostly reported lead-free bulk ceramics. The results show that K1-3xBixNa0.5NbO3-1 mol%CuO ceramics have a good application prospect in the field of energy storage, and provide a new scheme for the preparation of lead-free ceramics with high energy storage density and high conversion efficiency. |
| WOS关键词 | LEAD-FREE CERAMICS ; DIELECTRIC-CONSTANT ; GRAIN-SIZE ; TEMPERATURE ; TRANSITION ; FABRICATION ; DYNAMICS ; BEHAVIOR ; (K |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28035]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Li, YD,Zhen, YH,Wang, WX,et al. Enhanced energy storage density and discharge efficiency in potassium sodium niobite-based ceramics prepared using a new scheme[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(6):2357. |
| APA | Li, YD.,Zhen, YH.,Wang, WX.,Fang, ZQ.,Jia, ZL.,...&Zhu, FY.(2020).Enhanced energy storage density and discharge efficiency in potassium sodium niobite-based ceramics prepared using a new scheme.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(6),2357. |
| MLA | Li, YD,et al."Enhanced energy storage density and discharge efficiency in potassium sodium niobite-based ceramics prepared using a new scheme".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .6(2020):2357. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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