Silicon is a promising material for novel rechargeable Li-ion batteries due to its high specific capacity and the natural abundance of the element Si. However, to be implemented, the Si-based anode must overcome problems related to the huge volume expansion upon Li insertion. This can be attained by creating nanostructured Si and also implementing it in nanocomposites including carbon nanomaterials and conjugated polymers. This work reports on the synthesis of hybrid materials (nanocomposites) comprising graphene nanoribbons (GNR), silicon nanoparticles and conjugated polymers, like polyaniline. In this hybrid material, it is expected that GNR act as a conductive template for Si nanoparticles, while the fibers of polyaniline can provide a flexible and ionic conductor through the material. Combining these nanostructures with the high specific capacity of Si, the hybrid material can be assembled as a thin film and compose a thin film Li-ion battery with improved features, like flexibility and low weight, along with very high capacity.

Lithium ion battery based on thin films of graphene nanoribbons, conjugated polymers, and silicon nanoparticles

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.