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Atomic Layer‐by‐Layer Co 3 O 4 /Graphene Composite for High Performance Lithium‐Ion Batteries
Author(s) -
Dou Yuhai,
Xu Jiantie,
Ruan Boyang,
Liu Qiannan,
Pan Yuede,
Sun Ziqi,
Dou Shi Xue
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201501835
Subject(s) - graphene , materials science , lithium (medication) , composite number , anode , layer (electronics) , nanotechnology , ion , engineering physics , composite material , physics , chemistry , electrode , medicine , endocrinology , quantum mechanics
An “atomic layer‐by‐layer” structure of Co 3 O 4 /graphene is developed as an anode material for lithium‐ion batteries. Due to the atomic thickness of both the Co 3 O 4 nanosheets and graphene, the composite exhibits an ultrahigh specific capacity of 1134.4 mAh g −1 and an ultralong life up to 2000 cycles at 2.25 C, far beyond the performances of previously reported Co 3 O 4 /C composites.