Halosilane triggers anodic silanization and cathodic redox for stable and efficient lithium-O-2 batteries

doi:10.1039/c9ta04268g

	Halosilane triggers anodic silanization and cathodic redox for stable and efficient lithium-O-2 batteries
	Zhao, Xiaohui; Sun, Zhuang; Yao, Zhenguo; Cui, Zhonghui; Wang, Jiacheng; Zhang, Tao
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019-08-21
卷号	7 期号:31 页码:18237
ISSN号	2050-7488
DOI	10.1039/c9ta04268g
文献子类	Article
英文摘要	Fundamental challenges with the inefficient decomposition of Li2O2, the undesirable "shuttled effects" reactions of redox mediators (RMs) with Li, and the anodic corrosion from electrolyte attacks have seriously hindered the development of Li-O-2 batteries. We create and study a self-defense indissoluble LiOSi(CH3)(3) layer based on halosilane (iodotrimethylsilane, TMSI) tethered to a rationally designed oxygen-pretreated-Li (OPL) anode to overcome most above stubborn challenges. The silanization layer is shown to protect the Li anode against parasitic reactions and also stabilize Li electrodeposition during cell cycling. Iodine species self-released during the anchoring reaction can function as RMs at the cathode, reducing the charge overpotential. Finally, the combination of self-defense and self-release approaches through solely introducing halosilane into liquid electrolytes endows lithium-O-2 batteries with excellent cycling stability and electrical energy efficiency.
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/331005/26892]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Zhao, Xiaohui,Sun, Zhuang,Yao, Zhenguo,et al. Halosilane triggers anodic silanization and cathodic redox for stable and efficient lithium-O-2 batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(31):18237.
APA	Zhao, Xiaohui,Sun, Zhuang,Yao, Zhenguo,Cui, Zhonghui,Wang, Jiacheng,&Zhang, Tao.(2019).Halosilane triggers anodic silanization and cathodic redox for stable and efficient lithium-O-2 batteries.JOURNAL OF MATERIALS CHEMISTRY A,7(31),18237.
MLA	Zhao, Xiaohui,et al."Halosilane triggers anodic silanization and cathodic redox for stable and efficient lithium-O-2 batteries".JOURNAL OF MATERIALS CHEMISTRY A 7.31(2019):18237.