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Structural Evolution of 3D Nano‐Sn/Reduced Graphene Oxide Composite from a Sandwich‐like Structure to a Curly Sn@Carbon Nanocage‐like Structure during Lithiation/Delithiation Cycling
Author(s) -
Ying Hangjun,
Xin Fengxia,
Han Weiqiang
Publication year - 2016
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.201600498
Subject(s) - graphene , materials science , nanocages , composite number , oxide , carbon fibers , nanotechnology , lithium (medication) , nano , chemical engineering , composite material , metallurgy , medicine , biochemistry , chemistry , endocrinology , catalysis , engineering
3D nano‐Sn/reduced graphene oxide (RGO) composite has a sandwich‐like structure with ≈10 nm Sn particles adhering homogeneously on the interfaces and surfaces of RGO nanosheets. The composite exhibits excellent lithium storage performance, especially the extra‐long cycle life. This superior cycle performance is mainly attributed to the structural evolution from a sandwich‐like structure to a Sn@carbon nanocage‐like structure during cycling.