Direct Synthesis of Lithium-Intercalated Graphene for Electrochemical Energy Storage Application

A novel approach for bulk synthesis of lithium-intercalated graphene sheets through the reduction of exfoliated graphene oxide in liquid ammonia and lithium metal is reported. It is demonstrated here that as-synthesized lithiated graphite oxide sheets (Li-RGO) can be directly used as an electrode ma...

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Bibliographic Details
Published in:ACS nano 2011-06, Vol.5 (6), p.4345-4349
Main Authors: Kumar, Ashavani, Reddy, Arava Leela Mohana, Mukherjee, Arnab, Dubey, Madan, Zhan, Xiaobo, Singh, Neelam, Ci, Lijie, Billups, W. Edward, Nagurny, John, Mital, Gandhi, Ajayan, Pulickel M
Format: Article
Language:English
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Summary:A novel approach for bulk synthesis of lithium-intercalated graphene sheets through the reduction of exfoliated graphene oxide in liquid ammonia and lithium metal is reported. It is demonstrated here that as-synthesized lithiated graphite oxide sheets (Li-RGO) can be directly used as an electrode material in lithium batteries. The electrochemical studies on Li-RGO electrodes show a significant enhancement in the specific capacity of the lithium battery over commercially available graphite electrodes. Partial intercalation of lithium ions in between graphene layers makes this material a good candidate for electrochemical energy storage applications.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn201527p