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Employing MXene as a matrix for loading amorphous Si generated upon lithiation towards enhanced lithium-ion storage
Li, Haojie; Lu, Ming; Han, Wenjuan; Li, Haibo; Wu, Yucheng; Zhang, Wei; Wang, Jiaheng; Zhang, Bingsen
2019-11-01
Source PublicationJOURNAL OF ENERGY CHEMISTRY
ISSN2095-4956
Volume38Pages:50-54
AbstractAlthough Si-based nanomaterials provide incomparable lithium ion storage ability in theory, it suffers from low initial Coulombic efficiency, electrical disconnection, and fracture due to huge volume changes after extended cycles. As a result, it leads to a severe capacity fading and an increase in internal impedance. Herein, Ti-elemental MXene was employed as a matrix for the intermediate product of Si electrodes. The boundary between the inner core of pristine Si and its outer shell of amorphous LixSi alloy was reconstructed. Smaller amorphous aggregates were observed in the MXene&Si hybrid electrode after 500 cycles by using transmission electron microscopy. Consequently, an enhanced specific capacity was achieved as MXene as a matrix enables loading amorphous Si. (C) 2019 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
KeywordSilicon Ti3C2 MXene Li-ion
Indexed BySCI
Language英语
WOS IDWOS:000477704600010
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80681
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Li, Haojie,Lu, Ming,Han, Wenjuan,et al. Employing MXene as a matrix for loading amorphous Si generated upon lithiation towards enhanced lithium-ion storage[J]. JOURNAL OF ENERGY CHEMISTRY,2019,38:50-54.
APA Li, Haojie.,Lu, Ming.,Han, Wenjuan.,Li, Haibo.,Wu, Yucheng.,...&Zhang, Bingsen.(2019).Employing MXene as a matrix for loading amorphous Si generated upon lithiation towards enhanced lithium-ion storage.JOURNAL OF ENERGY CHEMISTRY,38,50-54.
MLA Li, Haojie,et al."Employing MXene as a matrix for loading amorphous Si generated upon lithiation towards enhanced lithium-ion storage".JOURNAL OF ENERGY CHEMISTRY 38(2019):50-54.
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