New High-Capacity Anode Material for Lithium Ion Batteries from Stanford University
New hybrid materials of Mn3O4 nanoparticles on reduced graphene oxide (RGO) sheets for lithium ion battery applications have been developed in Department of Chemistry and Laboratory for Advanced Materials and Department of Materials Science and Engineering, Stanford University.
They selectively grow of Mn3O4 nanoparticles on RGO sheets, and in contrast to free particle growth in solution it allowed for the electrically insulating Mn3O4 nanoparticles to be 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 900 mAh/g, near their 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 a high-capacity, low-cost, and environmentally friendly anode for lithium ion batteries. Such approach may offer a new technique for the design and synthesis of battery electrodes based on highly insulating materials.
by J. Am. Chem. Soc., Article ASAP
DOI: 10.1021/ja105296a
They selectively grow of Mn3O4 nanoparticles on RGO sheets, and in contrast to free particle growth in solution it allowed for the electrically insulating Mn3O4 nanoparticles to be 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 900 mAh/g, near their 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 a high-capacity, low-cost, and environmentally friendly anode for lithium ion batteries. Such approach may offer a new technique for the design and synthesis of battery electrodes based on highly insulating materials.
by J. Am. Chem. Soc., Article ASAP
DOI: 10.1021/ja105296a
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