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

doi:10.1039/c9ta04268g

SIC OpenIR

	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
	2019-08-21
Source Publication	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
Volume	7 Issue:31 Pages:18237
Subtype	Article
Abstract	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.
DOI	10.1039/c9ta04268g
Language	英语
WOS Research Area	Chemistry ; Energy & Fuels ; Materials Science
Publisher	ROYAL SOC CHEMISTRY
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/26892
Collection	中国科学院上海硅酸盐研究所
Recommended Citation 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.

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