Direct insights into the electrochemical processes at anode/electrolyte interfaces in magnesium-sulfur batteries

doi:10.1016/j.nanoen.2018.04.066

CORC > 化学研究所 > 中国科学院化学研究所

	Direct insights into the electrochemical processes at anode/electrolyte interfaces in magnesium-sulfur batteries
	Hu, Xin-Cheng 1,2,3; Shi, Yang 1,2,3; Lang, Shuang-Yan 1,2,3; Zhang, Xing 1,2,3; Gu, Lin 4; Guo, Yu-Guo 1,2,3; Wen, Rui 1,2,3; Wan, Li-Jun 1,2,3
刊名	NANO ENERGY
	2018-07-01
卷号	49 页码:453-459
关键词	Magnesium-sulfur Batteries Interfacial Dynamics Electrochemical Processes In Situ Atomic Force Microscopy Solvent Effect
ISSN号	2211-2855
DOI	10.1016/j.nanoen.2018.04.066
英文摘要	Magnesium-sulfur (Mg-S) batteries are highly attractive because of their high theoretical energy density, low cost and safety features. However, severe capacity fading issues limit their development, which are greatly associated with reaction processes at electrode/electrolyte interfaces. Herein, we systematically studied the interfacial processes of Mg deposition/stripping in ether-based electrolytes at nanoscale by in situ atomic force microscopy (AFM). It can be directly observed the initial nucleation of bowl-like structure and deposition of crystallized Mg upon charge in tetraglyme (TEG) - based electrolyte, followed with uniform stripping process upon discharge. In contrast, the initial nucleation of bowl-like structure, fast stack of nanoparticles (NPs) and deposition of crystallized Mg upon charge can be observed in diglyme (DEG) - based electrolyte, followed with nonuniform stripping process upon discharge. Combined with in situ optical imaging, former system shows better reversibility upon cycle. The present results reveal a direct insight into the structure-reactivity correlation at anode/electrolyte interfaces, which provides deep understanding of the interfacial mechanism to guide the design and development of the high-energy Mg-S batteries.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000434829500052
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/42611]
专题	中国科学院化学研究所
通讯作者	Wen, Rui
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Hu, Xin-Cheng,Shi, Yang,Lang, Shuang-Yan,et al. Direct insights into the electrochemical processes at anode/electrolyte interfaces in magnesium-sulfur batteries[J]. NANO ENERGY,2018,49:453-459.
APA	Hu, Xin-Cheng.,Shi, Yang.,Lang, Shuang-Yan.,Zhang, Xing.,Gu, Lin.,...&Wan, Li-Jun.(2018).Direct insights into the electrochemical processes at anode/electrolyte interfaces in magnesium-sulfur batteries.NANO ENERGY,49,453-459.
MLA	Hu, Xin-Cheng,et al."Direct insights into the electrochemical processes at anode/electrolyte interfaces in magnesium-sulfur batteries".NANO ENERGY 49(2018):453-459.