Work

Evaluation and Characterization of Reduced Graphene Oxide Nanosheets as Anode Materials for Lithium-Ion Batteries

Year: 2013

Type: article

Abstract: High quality reduced graphene oxide (rGO) nanosheets were prepared from natural graphite through oxidation followed by solvothermal reduction method. The morphology, structure and composition of graphene oxide (GO) and rGO were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), Raman spectrum, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical performances of rGO nanosheets as anode materials for lithium-ion batteries were evaluated in coin-type cells versus metallic lithium. Results showed that the obtained rGO exhibited a higher reversible specific capacity of 561 mAh g-1 at a current density of 100 mA g-1 and 166 mAh g-1 at a current density of 4000 mA g-1. The excellent cycling stability and high-rate capability of rGO as anodes of lithium-ion battery were attributed to its few layers structure, large-size sheet, and fast transport kinetics of Li-ion and electron on the interface of electrolyte/electrode.

Source: International Journal of Electrochemical Science

DOI: 10.1016/s1452-3981(23)14760-2

Authors: Changjing Fu, Guogang Zhao, Haijun Zhang, Shuang Li

Language: English

Topic: Advancements in Battery Materials

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $1,670

Funders: Department of Education, Heilongjiang Province, National Science and Technology Planning Project