Revealing Quasi-1D Volume Expansion in Na-/K-lon Battery Anodes: A Case Study of Sb_2O_3 Microbelts
文献类型：期刊论文
| 作者 | Yi Zheng1; Fang Daliang3; Zhang Wanqun1; Tian Jie1; Chen Shimou3; Liang Jianbo2; Lin Ning1; Qian Yitai1 |
| 刊名 | CCS CHEMISTRY
 |
| 出版日期 | 2021 |
| 卷号 | 3期号:5页码:99 |
| 关键词 | anisotropic volume expansion microbelts Sb_2O_3 sodium-ion batteries in situ characterizations |
| ISSN号 | 2096-5745 |
| 英文摘要 | Tailoring a rational structure to control the huge volume variation is practical in regulating alkali-ion battery performance on the basis of the anisotropic properties of crystallized anode materials.Here, a double-serrated orthorhombic antimony oxide(Sb_2O_3) microbelt was prepared by a thermally induced recrystallization/sublimation process.In situ transmission electron microscopy(TEM), in situ X-ray powder diffraction(XRD), and ex situ scanning electron microscopy(SEM) measurements demonstrate that Sb_2O_3 microbelts exhibit a quasi-one-dimensional expansion perpendicular to the belt(along the 100 direction) during sodiation.The unconstrained microbelt surface space can appropriately accommodate the oriented volume variation.Thus, Sb_2O_3 microbelts exhibit enhanced cycling and rate performance in half-cell sodium-ion batteries samples.Via support of reduced graphene oxide(RGO), Sb_2O_3@RGO composites deliver good rate capability(312.3 mAh g~(-1) at 3 A g~(-1)) for sodium-ion full-cell batteries and good cycling performance(473.9 mAh g~(-1) at 100 mA g~(-1) after 100 cycles) for half-cell potassium-ion batteries.In situ Raman measurements reveal that the conversion/alloying-type Sb_2O_3 anode undergoes a fully reversible alloying reaction and partially reversible conversion mechanism, which explains its irreversible capacity during the first cycle.The delicate structural design and clarification of the alkali-ion storage mechanisms facilitate the development of Sb_2O_3 anodes for energy storage applications. |
| 语种 | 英语 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/57199]  |
| 作者单位 | 1.中国科学技术大学 2.首都师范大学 3.中国科学院过程工程研究所 |
| 推荐引用方式 GB/T 7714 | Yi Zheng,Fang Daliang,Zhang Wanqun,et al. Revealing Quasi-1D Volume Expansion in Na-/K-lon Battery Anodes: A Case Study of Sb_2O_3 Microbelts[J]. CCS CHEMISTRY,2021,3(5):99. |
| APA | Yi Zheng.,Fang Daliang.,Zhang Wanqun.,Tian Jie.,Chen Shimou.,...&Qian Yitai.(2021).Revealing Quasi-1D Volume Expansion in Na-/K-lon Battery Anodes: A Case Study of Sb_2O_3 Microbelts.CCS CHEMISTRY,3(5),99. |
| MLA | Yi Zheng,et al."Revealing Quasi-1D Volume Expansion in Na-/K-lon Battery Anodes: A Case Study of Sb_2O_3 Microbelts".CCS CHEMISTRY 3.5(2021):99. |
入库方式： OAI收割
来源：过程工程研究所
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