NanoGraf, formerly known as SiNode Systems, was established in 2013 to commercial a novel anode Li-ion battery technology developed at Northwestern University. SiNode's anode uses a composite material of silicon nano-particles and graphene in a layered structure.
In April 2013 SiNode was chosen as the top startup company in the 2013 Rice Business Plan Competition, and their grand prize was valued at $911,400. In August 2014, the company announced a joint-development agreement with Merck's AZ Electronic Materials. In November 2017 SiNode announced a joint-project with PPG to develop anode materials for EV batteries.