From nanomelting to nanobeads: nanostructured SbxBi1-x alloys anchored in three-dimensional carbon frameworks as a high-performance anode for potassium-ion batteries

doi:10.1039/c9ta10755j

	From nanomelting to nanobeads: nanostructured SbxBi1-x alloys anchored in three-dimensional carbon frameworks as a high-performance anode for potassium-ion batteries
	He, Xiao-Dong; Liao, Jia-Ying; Wang, Shuo; Wang, Jun-Ru; Liu, Ze-Hua; Ding, Xiang; Hu, Qiao; Wen, Zhao-Yin; Chen, Chun-Hua
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019-12-21
卷号	7 期号:47 页码:27041
ISSN号	2050-7488
DOI	10.1039/c9ta10755j
文献子类	Article
英文摘要	Potassium-ion batteries (KIBs) are considered a favorable candidate for large-scale electric energy storage system applications owing to the abundance and low-cost of potassium resources. Herein, a series of three-dimensional pomegranate-like SbxBi1-x@C composites are fabricated by a modified Pechini sol-gel method. As an anode for KIBs, the Sb0.5Bi0.5@C composite exhibits the optimal performance (382 mA h g(-1) at 0.05 A g(-1)). More importantly, the synergistic effects in the binary alloy bring a promising long-term cycle life (83% capacity retention after 400 cycles) for Sb0.5Bi0.5@C. The ex situ X-ray diffraction results reveal the K storage mechanism of this material, which is Sb0.5Bi0.5 <-> KSb0.5Bi0.5 <-> K3Sb0.5Bi0.5 during discharge and charge processes. In addition, a full cell constructed by coupling Sb0.5Bi0.5@C with a Prussian blue cathode delivers outstanding electrochemical performance.
WOS关键词	LONG CYCLE LIFE ; INTERCALATION ; NANOCOMPOSITE ; COMPOSITE
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27442]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	He, Xiao-Dong,Liao, Jia-Ying,Wang, Shuo,et al. From nanomelting to nanobeads: nanostructured SbxBi1-x alloys anchored in three-dimensional carbon frameworks as a high-performance anode for potassium-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(47):27041.
APA	He, Xiao-Dong.,Liao, Jia-Ying.,Wang, Shuo.,Wang, Jun-Ru.,Liu, Ze-Hua.,...&Chen, Chun-Hua.(2019).From nanomelting to nanobeads: nanostructured SbxBi1-x alloys anchored in three-dimensional carbon frameworks as a high-performance anode for potassium-ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,7(47),27041.
MLA	He, Xiao-Dong,et al."From nanomelting to nanobeads: nanostructured SbxBi1-x alloys anchored in three-dimensional carbon frameworks as a high-performance anode for potassium-ion batteries".JOURNAL OF MATERIALS CHEMISTRY A 7.47(2019):27041.