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Molecular‐Level Encapsulation Strategy: Host–Guest‐Inclusion‐Complex‐Derived Carbon‐Encapsulated Nanocomposites for High Performance Lithium‐Ion Storage
Author(s) -
Li Lina,
Wang Kun,
Pei Jian,
Qin Zhongzheng,
Hu Yongyuan,
Dong Qi,
Chen Gang
Publication year - 2021
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.202001847
Subject(s) - materials science , nanocomposite , nanosheet , lamellar structure , anode , encapsulation (networking) , nanotechnology , chemical engineering , homogeneous , electrode , composite material , chemistry , computer network , computer science , engineering , physics , thermodynamics
The carbon encapsulation in a pomegranate manner effectively avoids inner‐active pulverization and perfectly provides electronic transmission network during lithiation and delithiation for high performance lithium‐ion batteries. Carbon‐encapsulated homogeneous nanocomposites derived from host–guest inclusion are first realized based on molecular‐level encapsulating of β‐cyclodextrin. On the basis of this unique arrangement, lamellar nanosheet anodes are further prepared using a freeze‐drying method for favoring Li‐ion migration. As results of this design, large reversible capacity, high rate capability, and excellent cycling stability are achieved simultaneously. This host–guest encapsulation at the molecular scale offers a new and effective way for the development of carbon encapsulation electrode materials.