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Simple approach to advanced binder-free nitrogen-doped graphene electrode for lithium batteries

Authors
Park, Hyean-YeolSingh, Kiran PalYang, Dae-SooYu, Jong-Sung
Issue Date
2015
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v.5, no.5, pp.3881 - 3887
Indexed
SCIE
SCOPUS
Journal Title
RSC ADVANCES
Volume
5
Number
5
Start Page
3881
End Page
3887
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/96318
DOI
10.1039/c4ra15541f
ISSN
2046-2069
Abstract
A simple binder-free synthesis approach of just rubbing nitrogen-doped reduced graphene oxide (N-RGO) powder on a mechanically grinded Cu-foil substrate with a rough surface is proposed for a lithium ion battery (LIB). The nitrogen content of N-RGO is found to be 2.1 wt%. The binder-free N-RGO electrode shows excellent reversible capacity of 551 mA h g(-1) as compared to 433 mA h g(-1) of the binder-added N-RGO electrode at a current density of 50 mA g(-1) after 100 cycles. The process is not only highly reproducible and successful, but also results in high LIB performance, proposing easy scaling-up of such an electrode for commercial application.
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