Mn3O4-Graphene Hybrid as a High Capacity Anode Material for Lithium Ion Batteries

Details Mn3O4-Graphene Hybrid as a High Capacity Anode Material for Lithium Ion Batteries Mn3O4-Graphene Hybrid as a High Capacity Anode Material for Lithium Ion Batteries

2010-09-20

arxiv.org/abs/1009.3923v1

Physics

Condensed Matter

Materials Science

JACS in press

Scientific paper

We developed two-step solution-phase reactions to form hybrid materials of Mn3O4 nanoparticles on reduced graphene oxide (RGO) sheets for lithium ion battery applications. Mn3O4 nanoparticles grown selectively on RGO sheets over free particle growth in solution allowed for the electrically insulating Mn3O4 nanoparticles wired up to a current collector through the underlying conducting graphene network. The Mn3O4 nanoparticles formed on RGO show a high specific capacity up to ~900mAh/g near its theoretical capacity with good rate capability and cycling stability, owing to the intimate interactions between the graphene substrates and the Mn3O4 nanoparticles grown atop. The Mn3O4/RGO hybrid could be a promising candidate material for high-capacity, low-cost, and environmentally friendly anode for lithium ion batteries. Our growth-on-graphene approach should offer a new technique for design and synthesis of battery electrodes based on highly insulating materials.

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