Polyethylene Glycol-Na+ Interface of Vanadium Hexacyanoferrate Cathode for Highly Stable Rechargeable Aqueous Sodium-Ion Battery

doi:10.1021/acsami.9b04849

	Polyethylene Glycol-Na+ Interface of Vanadium Hexacyanoferrate Cathode for Highly Stable Rechargeable Aqueous Sodium-Ion Battery
	Jiang, Ping 1,2,5; Lei, Zhenyu 1; Chen, Liang 2; Shao, Xuecheng 4; Liang, Xinmiao 1; Zhang, Jun 2; Wang, Yanchao 4; Zhang, Jiujun 3; Liu, Zhaoping 2; Feng, Jiwen 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2019-08-14
卷号	11 期号:32 页码:28762-28768
关键词	Vanadium hexacyanoferrate Solid electrolyte interphase Solid-state NMR Aqueous rechargeable sodium-ion battery
ISSN号	1944-8244
DOI	10.1021/acsami.9b04849
英文摘要	Vanadium hexacyanoferrate (VHCF) with an open-framework crystal structure is a promising cathode material for rechargeable aqueous metal-ion batteries owing to its high electrochemical performance and easy synthesis. In this paper, vanadium hexacyanoferrate cathodes were first used for constructing rechargeable aqueous sodium-ion batteries (VHCF/WO3) and tested in the new-type electrolyte (NaP-4.6) consisting of a polyethylene glycol (PEG)/H2O/NaClO4 electrolyte with a low H+ concentration (molar ratio of [H2O]/[Na+] is 4.6), which has high stability at a high current density as high as 1000 mA g(-1) with a capacity retention of 90.3% after 2000 cycles at high coulombic efficiency (above 97.8%). To understand their outstanding performance, the proton-assisted sodium-ion storage mechanism and interphase chemistry of VHCF are investigated by solid-state NMR (ssNMR) technology. It is suggested that the H+ storage reaction is accompanied by the redox of vanadium atoms and Na+ intercalation is accompanied by the redox of iron atoms. It is also observed that the complex of polyethylene glycol (PEG) with Na+ (PEG-Na+) exists on the VHCF surface, which facilitates the stability of VHCF and promotes the alkali-ion transfer at a high current density. The results of the ssNMR study offer new insights into the intercalation chemistry of Prussian blue analogues with open-framework-structured compounds, which can greatly broaden our horizons for battery research.
资助项目	National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
WOS关键词	ENERGY-STORAGE ; STABILITY ; PERFORMANCE
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000481567100017
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/14843]
专题	中国科学院武汉物理与数学研究所
通讯作者	Zhang, Jiujun; Liu, Zhaoping; Feng, Jiwen
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Hubei, Peoples R China 2.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China 3.Shanghai Univ, Coll Sci, Inst Sustainable Energy, Shanghai 200444, Peoples R China 4.Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100000, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Ping,Lei, Zhenyu,Chen, Liang,et al. Polyethylene Glycol-Na+ Interface of Vanadium Hexacyanoferrate Cathode for Highly Stable Rechargeable Aqueous Sodium-Ion Battery[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(32):28762-28768.
APA	Jiang, Ping.,Lei, Zhenyu.,Chen, Liang.,Shao, Xuecheng.,Liang, Xinmiao.,...&Feng, Jiwen.(2019).Polyethylene Glycol-Na+ Interface of Vanadium Hexacyanoferrate Cathode for Highly Stable Rechargeable Aqueous Sodium-Ion Battery.ACS APPLIED MATERIALS & INTERFACES,11(32),28762-28768.
MLA	Jiang, Ping,et al."Polyethylene Glycol-Na+ Interface of Vanadium Hexacyanoferrate Cathode for Highly Stable Rechargeable Aqueous Sodium-Ion Battery".ACS APPLIED MATERIALS & INTERFACES 11.32(2019):28762-28768.