Issue 105, 2015
From the journal:

RSC Advances

Effect of degree of reduction on the anode performance of reduced graphene oxide in Li-ion batteries†

Sujin Kim,a   Gyutae Park,a   Palanichamy Sennu,b   Seungjun Lee,a   Kwangrok Choi,a   Junghoon Oh,a   Yun-Sung Leeb  and  Sungjin Park*a  

* Corresponding authors

a Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, Republic of Korea
E-mail: sungjinpark@inha.ac.kr

b Faculty of Applied Chemical Engineering, Chonnam National University, Gwang-ju 500-757, Republic of Korea

Abstract

Graphene-based materials are considered to be promising anodes for achieving high energy and power densities in Li-ion batteries (LIBs). Despite intensive research on reduced graphene oxide (rG-O) on this aspect, few have addressed the relationship between LIB performance and the degree of reduction of graphene oxide. In this work, we study the performance of LIB anodes using rG-O materials with different oxygen levels. A series of rG-O samples is produced by refluxing an aqueous graphene oxide suspension for different durations. The C/O ratios of the materials are found to increase gradually from approximately 1 to 6, with no heteroatoms other than oxygen atoms. The rG-O sample with the lowest degree of reduction delivers the highest anodic capacity and good durability.

Graphical abstract: Effect of degree of reduction on the anode performance of reduced graphene oxide in Li-ion batteries

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Article information

DOI
https://doi.org/10.1039/C5RA13890F
Article type
Paper
Submitted
15 Jul 2015
Accepted
06 Oct 2015
First published
06 Oct 2015

RSC Adv., 2015,5, 86237-86241

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Effect of degree of reduction on the anode performance of reduced graphene oxide in Li-ion batteries

S. Kim, G. Park, P. Sennu, S. Lee, K. Choi, J. Oh, Y. Lee and S. Park, RSC Adv., 2015, 5, 86237 DOI: 10.1039/C5RA13890F

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