KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage | |
| Xu, JJ; Wang, D; Kong, SY; Li, RZ; Hong, ZL; Huang, FQ | |
| 2020-03-21 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY A
 |
| ISSN | 2050-7488 |
| Issue | 11Pages:5744 |
| Subtype | Article |
| Abstract | In the search of high-performance anode materials for next-generation Li-ion batteries, more efforts are needed on new structural prototypes. Motivated by the negative thermal expansion effect in a loosely packed crystal structure type, we are intrigued by the possibility of exploiting new anode materials in a suitable phase structure with much-reduced intrinsic volume strain. Herein, we report a new pyrochlore phase anode material, Ce2Sn2O7, which shows atomic Sn confined in a conductive 3D percolating Ce-O framework. Based on the concept of structural openness, pyrochlore Ce2Sn2O7 possesses open structures to tolerate the volume change. Notably, the Ce-O network is quite robust against the charge/discharge process, which accounts for the high structural stability observed in the experiment. Ultimately, Ce2Sn2O7 electrodes achieve a capacity as high as 631.1 mA h g(-1) and excellent cycling stability. This atom-confining strategy of atomic Sn in the conductive 3D percolating Ce-O framework might be exploited as a general strategy for reducing cycling strain in ion-storage materials. |
| DOI | 10.1039/c9ta13602a |
| WOS Keyword | ANODE MATERIAL ; ION BATTERIES ; LI ; CAPACITY ; LITHIATION ; FLUORIDE ; OXIDES |
| Language | 英语 |
| WOS Research Area | Chemistry ; Energy & Fuels ; Materials Science |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sic.ac.cn/handle/331005/28219 |
| Collection | 中国科学院上海硅酸盐研究所 |
| Recommended Citation GB/T 7714 | Xu, JJ,Wang, D,Kong, SY,et al. Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020(11):5744. |
| APA | Xu, JJ,Wang, D,Kong, SY,Li, RZ,Hong, ZL,&Huang, FQ.(2020).Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage.JOURNAL OF MATERIALS CHEMISTRY A(11),5744. |
| MLA | Xu, JJ,et al."Pyrochlore phase Ce(2)Sn(2)O(7)via an atom-confining strategy for reversible lithium storage".JOURNAL OF MATERIALS CHEMISTRY A .11(2020):5744. |
| 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