Electrode Properties of Defect-Introduced Graphenes for Lithium-Ion Batteries

Wonk Yun Lee; Shinya Suzuki; Masaru Miyayama

doi:10.4028/www.scientific.net/KEM.582.103

Paper Titles

Chemical Composition of Dielectric and Piezoelectric Properties for BaTiO₃-Bi (Mg_1/2Ti_1/2)O₃-BiFeO₃ System Ceramics
p.84

Preparation of (Bi_1/2K_1/2)TiO3-Bi(Mg_1/2Ti_1/2)O₃-BiFeO₃ Ceramics Withnanodomain Structure and their Piezoelectric Properties
p.88

Origin of Semiconducting Behavior of CaO Added BaTiO₃-(Bi_1/2Na_1/2)TiO₃ Ceramics
p.92

Leakage Current and Polarization Properties of (Bi_0.5Na_0.5)TiO_3-BaTiO₃ Single Crystals
p.96

Electrode Properties of Defect-Introduced Graphenes for Lithium-Ion Batteries
p.103

Relationship between Phonon Parameters and Oxygen Ion Conductivity for Al-Yb Co-Doped Zirconia
p.107

Fabrication and Evaluation of Titanium Dioxide Nanotube Thin Films by Anodic Oxidation on Transparent Electrodes
p.111

Synthesis and Electrical Properties of La Doped SrTiO₃ Powders by Ultrasonic Spray Pyrolysis
p.115

Preparation and Characterization of Mesoporous Silica and Lithium-Ion-Conductive Halocomplex Salt Composite
p.119

HomeKey Engineering MaterialsKey Engineering Materials Vol. 582Electrode Properties of Defect-Introduced...

Electrode Properties of Defect-Introduced Graphenes for Lithium-Ion Batteries

Abstract:

Electrochemical properties of defect-introduces graphenes for lithium ion batteries were investigated. Graphene sheets (GSs) were prepared from graphite through treating with oxidizing agent followed by rapid thermal exfoliation. Defect concentration was controlled by selecting the number of times of oxidation of graphite. GSs electrodes derived from 1, 2 and 3 times-oxidized graphite oxides exhibited a high charge capacity of 1250, 1790 and 2310 mAh g¹, respectively, at the 20th cycle at a current density of 100 mA g¹. The enhanced capacity is assumed to be due to additional lithium storage sites such as defects and edges.

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Key Engineering Materials (Volume 582)

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103-106

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.582.103

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Online since:

September 2013

Authors:

Wonk Yun Lee, Shinya Suzuki, Masaru Miyayama

Keywords:

Electrode, Graphene (GR), Lithium-Ion Battery

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