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Superior Lithium Storage Performance using Sequentially Stacked MnO 2 /Reduced Graphene Oxide Composite Electrodes
Author(s) -
Kim Sue Jin,
Yun Young Jun,
Kim Ki Woong,
Chae Changju,
Jeong Sunho,
Kang Yongku,
Choi SiYoung,
Lee Sun Sook,
Choi Sungho
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201500200
Subject(s) - graphene , materials science , anode , electrode , oxide , lithium (medication) , composite number , energy storage , nanotechnology , nanostructure , optoelectronics , chemical engineering , composite material , chemistry , power (physics) , medicine , physics , quantum mechanics , endocrinology , engineering , metallurgy
Hybrid nanostructures based on graphene and metal oxides hold great potential for use in high‐performance electrode materials for next‐generation lithium‐ion batteries. Herein, a new strategy to fabricate sequentially stacked α‐MnO 2 /reduced graphene oxide composites driven by surface‐charge‐induced mutual electrostatic interactions is proposed. The resultant composite anode exhibits an excellent reversible charge/discharge capacity as high as 1100 mA h g −1 without any traceable capacity fading, even after 100 cycles, which leads to a high rate capability electrode performance for lithium ion batteries. Thus, the proposed synthetic procedures guarantee a synergistic effect of multidimensional nanoscale media between one (metal oxide nanowire) and two dimensions (graphene sheet) for superior energy‐storage electrodes.