Highly stable zinc-iodine single flow batteries with super high energy density for stationary energy storage

doi:10.1039/c8ee02825g

	Highly stable zinc-iodine single flow batteries with super high energy density for stationary energy storage
	Xie, Congxin 1,3; Liu, Yun 1,3; Lu, Wenjing 1,3; Zhang, Huamin 2,3; Li, Xianfeng 2,3
刊名	ENERGY & ENVIRONMENTAL SCIENCE
	2019-06-01
卷号	12 期号:6 页码:1834-1839
ISSN号	1754-5692
DOI	10.1039/c8ee02825g
通讯作者	Li, Xianfeng(lixianfeng@dicp.ac.cn)
英文摘要	A zinc-iodine single flow battery (ZISFB) with super high energy density, efficiency and stability was designed and presented for the first time. In this design, an electrolyte with very high concentration (7.5 M KI and 3.75 M ZnBr2) was sealed at the positive side. Thanks to the high solubility of KI, it fully meets the areal capacity of zinc deposition on the negative side. Most importantly, the ZISFB can be charged to nearly 100% state of charge (SOC) or I can be fully charged to solid state I2 so as to get a maximum energy density. Besides, the blockage of the pump and pipelines on the positive side caused by solid I2 can be inhibited due to the avoidance of electrolyte circulation. Besides, the employment of a highly composite porous polyolefin ion conducting membrane with a super thin Nafion layer effectively improved the membrane selectivity. As a result, the ZISFB demonstrated a CE of 97% and an EE of 81% at a current density of 40 mA cm 2, and the battery could continuously run for more than 500 cycles. The battery demonstrated a high energy density of 205 W h L 1 (theoretical energy density is about 240 W h L 1) (7.5 M KI and 3.75 M ZnBr2 as the electrolyte), which is the highest cycling energy density ever reported. With super high energy density, long cycling life, and a simple structure, a ZISFB becomes a very promising candidate for large scale energy storage and even for power batteries.
资助项目	CAS-DOE collaborative Project[121421KYSB20170032] ; Dalian science and technology innovation project[2018J12GX050] ; DICP fund[ZZBS201707]
WOS关键词	CYCLIC VOLTAMMETRY ; ELECTRODES ; KI
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000471283100019
资助机构	CAS-DOE collaborative Project ; CAS-DOE collaborative Project ; Dalian science and technology innovation project ; Dalian science and technology innovation project ; DICP fund ; DICP fund ; CAS-DOE collaborative Project ; CAS-DOE collaborative Project ; Dalian science and technology innovation project ; Dalian science and technology innovation project ; DICP fund ; DICP fund ; CAS-DOE collaborative Project ; CAS-DOE collaborative Project ; Dalian science and technology innovation project ; Dalian science and technology innovation project ; DICP fund ; DICP fund ; CAS-DOE collaborative Project ; CAS-DOE collaborative Project ; Dalian science and technology innovation project ; Dalian science and technology innovation project ; DICP fund ; DICP fund
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/175770]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Li, Xianfeng
作者单位	1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Xie, Congxin,Liu, Yun,Lu, Wenjing,et al. Highly stable zinc-iodine single flow batteries with super high energy density for stationary energy storage[J]. ENERGY & ENVIRONMENTAL SCIENCE,2019,12(6):1834-1839.
APA	Xie, Congxin,Liu, Yun,Lu, Wenjing,Zhang, Huamin,&Li, Xianfeng.(2019).Highly stable zinc-iodine single flow batteries with super high energy density for stationary energy storage.ENERGY & ENVIRONMENTAL SCIENCE,12(6),1834-1839.
MLA	Xie, Congxin,et al."Highly stable zinc-iodine single flow batteries with super high energy density for stationary energy storage".ENERGY & ENVIRONMENTAL SCIENCE 12.6(2019):1834-1839.