Understanding the interlayer rearrangement toward enhanced lithium storage for LiBC anodes

By introducing Li insufficiency, we interestingly found that m-LiBC exhibits a higher capacity (220 mA h g −1 ) than the original o-LiBC (50 mA h g −1 ). This improved capacity benefits from its structural evolution, with the interlayer rearrangement changed from "ABABAB" (o-LiBC) to "...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-11, Vol.57 (93), p.12492-12495
Main Authors: Yang, Qianwen, Chen, Langlang, Liu, Zhiyu, Wei, Yaqing, Li, De, Chen, Yong
Format: Article
Language:English
Subjects:
Interlayers
Lithium compounds
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Summary:By introducing Li insufficiency, we interestingly found that m-LiBC exhibits a higher capacity (220 mA h g −1 ) than the original o-LiBC (50 mA h g −1 ). This improved capacity benefits from its structural evolution, with the interlayer rearrangement changed from "ABABAB" (o-LiBC) to "ABAABA" (m-LiBC) stacking, triggered by Li insufficiency. This understanding of interlayer rearrangement for LiBC may open a new avenue to activate Li + extraction in other lithium compounds. By introducing Li insufficiency, an interlayer rearrangement from "ABABAB" to "ABAABA" stacking is triggered for the layered LiBC. Thus, the structural modified m-LiBC exhibits higher capacity (220 mA h g −1 ) than original o-LiBC (50 mA h g −1 ).
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc04560a