High gravimetric capacity and long cycle life in Mn3O4/graphene platelet/LiCMC composite lithium-ion battery anodes

We report the synthesis, characterization and battery performance of a novel Mn3O4/graphene composite based on graphene platelets and also an Mn3O4/reduced-graphene-oxide composite for comparison. The electrodes were cast from aqueous dispersions in which lithium carboxymethyl cellulose was used as...

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Bibliographic Details
Published in:Journal of power sources 2012-09, Vol.213, p.249-254
Main Authors: Lavoie, Nathalie, Malenfant, Patrick R.L., Courtel, Fabrice M., Abu-Lebdeh, Yaser, Davidson, Isobel J.
Format: Article
Language:English
Subjects:
Anode materials
Anodes
Battery
Dispersions
Electrodes
Graphene
Gravimeters
Li-ion batteries
Lithium carboxymethyl cellulose (LiCMC)
Lithium-ion batteries
Manganese oxide
Platelets
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Summary:We report the synthesis, characterization and battery performance of a novel Mn3O4/graphene composite based on graphene platelets and also an Mn3O4/reduced-graphene-oxide composite for comparison. The electrodes were cast from aqueous dispersions in which lithium carboxymethyl cellulose was used as a binder thus enabling an aqueous based process for anode fabrication. The Mn3O4/graphene-platelet and the Mn3O4/reduced-graphene-oxide composites anode system possess high gravimetric capacities (∼700mAhg−1) and excellent cycling stability (>100 cycles). ► Graphene/Mn3O4 composites were prepared using LiCMC as the binder. ► Composites are prepared using an aqueous process. ► Commercial graphene platelets and Mn3O4 nanoparticles are used to prepare anodes. ► Composite gives high capacities and long cycle life, comparable to RGO/Mn3O4. ► Thicker graphene platelets can support TMO particles in composite anodes.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2012.03.055