Submicron Ti2CTx MXene particulates as high-rate intercalation anode materials for Li-ion batteries

doi:10.1039/d2ta03050k

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	Submicron Ti2CTx MXene particulates as high-rate intercalation anode materials for Li-ion batteries
	Cui, Cong 2,3; Dai, Ruqiao 2,3; Zhang, Chao 3; Fan, Bingbing 1; Wang, Xiaohui 3
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2022-06-18
页码	11
ISSN号	2050-7488
DOI	10.1039/d2ta03050k
通讯作者	Wang, Xiaohui(wang@imr.ac.cn)
英文摘要	Ever increasing demands for portable electronics and electric vehicles critically require high-rate Li-ion batteries (LIBs) whose performance fundamentally depends on electrode materials. However, currently commercialized anode materials including graphite and silicon fail to fulfill the higher requirement because of their intrinsically inferior rate capability. Here, we report submicron Ti2CTx (s-Ti2CTx) MXene particulates as a high-rate intercalation anode material for LIBs. The particulates are derived from the layered ternary Ti2AlC MAX phase that is readily fabricated by the molten salt method. The synthesized s-Ti2CTx particulates have a high specific capacity of similar to 155 mA h g(-1) even at a high current density of 10 A g(-1), exhibiting high rate capability. Specifically, the particulates, with a nominal chemical formula of Ti2CTxLi1.4, can release similar to 57% of their revisable capacity (similar to 270 mA h g(-1)) in 56 s and they exhibit good capacity retention during 1000 cycles. As evidenced by comprehensive electrochemical characterization studies, a reduction in the lateral size of MXene particulates remarkably facilitates an interlayer (de)lithiation process compared with their large counterparts. The s-Ti2CTx also offers an opportunity to fabricate flexible electrodes with outstanding rate performance and cyclability. Our results provide a platform for studying MXene-based intercalation anode materials with desired electrochemical performance for high-rate LIBs.
资助项目	National Natural Science Foundation of China[51972310] ; Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000819511500001
资助机构	National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174864]
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.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Cui, Cong,Dai, Ruqiao,Zhang, Chao,et al. Submicron Ti2CTx MXene particulates as high-rate intercalation anode materials for Li-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2022:11.
APA	Cui, Cong,Dai, Ruqiao,Zhang, Chao,Fan, Bingbing,&Wang, Xiaohui.(2022).Submicron Ti2CTx MXene particulates as high-rate intercalation anode materials for Li-ion batteries.JOURNAL OF MATERIALS CHEMISTRY A,11.
MLA	Cui, Cong,et al."Submicron Ti2CTx MXene particulates as high-rate intercalation anode materials for Li-ion batteries".JOURNAL OF MATERIALS CHEMISTRY A (2022):11.