13-11 – Flexible, High-Performance Battery Anode Comprising of Free-Standing Graphene-SiOC Composite Paper

Researchers at K-State have developed a high-performance, self-standing and flexible battery anode comprising of Graphene-SiOC composite paper. This flexible composite paper is prepared using a combination of amorphous SiOC polymer-derived ceramic and reduced-Graphene Oxide sheets. The electrode made from this combination of materials has been found to demonstrate an exceptional cyclic stability and a significantly high capacity when used in a Lithium-ion battery. The reduced Graphene Oxide used in this composite paper serves as an effective current collector and electron conductor, while the amorphous SiOC particles actively cycle Lithium ions. Therefore, the key aspect of this freestanding paper is that it eliminates the use of copper as a current collector in a Lithium-ion battery anode, while providing for a mechanically flexible electrode. Aarushi Gupta-Sheth aarushi@ksu.edu 785-532-3907