Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries

doi:10.1016/j.electacta.2019.02.085

CORC > 金属研究所 > 中国科学院金属研究所

	Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries
	Cui, Yu 1; Xie, Xi 2; Yang, Rui 2; Qin, Jinwen 1; Zheng, Lirong 3; Cao, Minhua 1
刊名	ELECTROCHIMICA ACTA
	2019-05-10
卷号	305 页码:11-23
关键词	MXene Microreactor Free-standing film Energy storage Structural engineering
ISSN号	0013-4686
DOI	10.1016/j.electacta.2019.02.085
通讯作者	Qin, Jinwen() ; Cao, Minhua(caomh@bit.edu.cn)
英文摘要	In order to fully excavate Ti3C2Tx's electrochemical energy storage capability, a combination of cold pressing and annealing treatment is developed to fabricate free-standing Ti3C2Tx MXene films featuring well-defined film structure, planar macropores, in-plane defects and expanded interlayer spacing. The rational construction of microreactors between Ti3C2Tx nanosheets by cold pressing can assist the formation of the planar macropores and in-plane defects of Ti3C2Tx nanosheets under the annealing conditions, whereas the annealing process could regulate the functional groups of Ti3C2Tx nanosheets to significantly expand their interlayer spacing. These structural advantages not only can prevent self-restacking of Ti3C2Tx nanosheets, but also can increase the ion and electrolyte diffusion as well as the utilization of electrochemically active sites. The as-prepared PF-Ti3C2Tx-500, pre-pressed at 6 MPa followed by an annealing treatment at 500 degrees C in H-2/Ar, exhibits excellent characteristics as the lithium storage anode, such as an enhanced initial Coulombic efficiency (CE) of 77.3%, a high areal capacity (2.22 mA h cm(-2) at 7.52 mg cm(-2) for 500 cycles), and stable long cycling performance. This work demonstrates the important role of microstructure manipulation of Ti3C2Tx MXene on their electrochemical performance and can guide future work on designing high-performance MXene-based materials for energy storage applications. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[21872008] ; National Natural Science Foundation of China[21471016] ; National Natural Science Foundation of China[21271023] ; 111 Project[B07012]
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000462774000002
资助机构	National Natural Science Foundation of China ; 111 Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132639]
专题	金属研究所_中国科学院金属研究所
通讯作者	Qin, Jinwen; Cao, Minhua
作者单位	1.Beijing Inst Technol, Key Lab Cluster Sci, Beijing Key Lab Photoelect Electrophoton Convers, Minist Educ China,Sch Chem & Chem Engn, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Beijing Synchrotron Radiat Lab, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cui, Yu,Xie, Xi,Yang, Rui,et al. Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries[J]. ELECTROCHIMICA ACTA,2019,305:11-23.
APA	Cui, Yu,Xie, Xi,Yang, Rui,Qin, Jinwen,Zheng, Lirong,&Cao, Minhua.(2019).Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries.ELECTROCHIMICA ACTA,305,11-23.
MLA	Cui, Yu,et al."Cold pressing-built microreactors to thermally manipulate microstructure of MXene film as an anode for high-performance lithium-ion batteries".ELECTROCHIMICA ACTA 305(2019):11-23.