MXene Enables Stable Solid-Electrolyte Interphase for Si@MXene Composite with Enhanced Cycling Stability

doi:10.1002/celc.202100878

CORC > 金属研究所 > 中国科学院金属研究所

	MXene Enables Stable Solid-Electrolyte Interphase for Si@MXene Composite with Enhanced Cycling Stability
	Zhou, Hao 1,2; Cui, Cong 1,2; Cheng, Renfei 1,2; Yang, Jinxing 1,2; Wang, Xiaohui 1
刊名	CHEMELECTROCHEM
	2021-08-13
卷号	8 期号:16 页码:3089-3094
关键词	Si anode Ti3C2Tx MXene porous structure electrolyte barrier layer self-assembly
ISSN号	2196-0216
DOI	10.1002/celc.202100878
通讯作者	Wang, Xiaohui(wang@imr.ac.cn)
英文摘要	Silicon (Si) has been gaining considerable attention in the field of Li-ion batteries although unstable solid-electrolyte interphase (SEI), extreme volume changes and inferior conductivity hinder its practical application. Herein, ultrasonic-assisted electrostatic self-assembly of fluidic colloidal coprecipitation of MXene wrapped Si nanoparticles (Si@MXene) is proposed. Utilizing the natural negatively charged MXene to capture positive-charged Si nanoparticles, the homogeneous Ti3C2Tx MXene coating on Si nanoparticles prevents the nanoparticles from directly contacting the electrolyte and thus enables the formation of a stable SEI film on the composite particulates. Due to the elimination of unstable solid-electrolyte interphase on the surface of Si nanoparticles, Si@MXene delivers high capacity and excellent retention stability of 94 % after 100 cycles. The strategy demonstrated here offers the rational design of MXene-coated Si anodes with high capacity and superior cycling stability.
WOS研究方向	Electrochemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000690902400015
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/166857]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Xiaohui
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Hao,Cui, Cong,Cheng, Renfei,et al. MXene Enables Stable Solid-Electrolyte Interphase for Si@MXene Composite with Enhanced Cycling Stability[J]. CHEMELECTROCHEM,2021,8(16):3089-3094.
APA	Zhou, Hao,Cui, Cong,Cheng, Renfei,Yang, Jinxing,&Wang, Xiaohui.(2021).MXene Enables Stable Solid-Electrolyte Interphase for Si@MXene Composite with Enhanced Cycling Stability.CHEMELECTROCHEM,8(16),3089-3094.
MLA	Zhou, Hao,et al."MXene Enables Stable Solid-Electrolyte Interphase for Si@MXene Composite with Enhanced Cycling Stability".CHEMELECTROCHEM 8.16(2021):3089-3094.