Samsung, together with Yonsei University, both based in Korea, have filed a patent to use graphene as the electrode material in lithium-containing batteries. US patent application number 20120258367 is far from first for Samsung, a company at the forefront of bringing graphene research to the markets. In this case, the patent shows results of a battery that can charge and discharge very quickly, but it is not clear whether the battery reaches the set goal of 300 F/g capacitance. The patent claims that this much energy is needed to power transportation, machinery, and smart grids, all target industries for the invention. The present patent thus looks to make a claim on the method of producing nanocomposite batteries based on graphene and a lithium-containing metal oxide, even if at the moment they only satisfy the speed and not the energy requirements of the target industries. The patent application does provide, however, for a secondary lithium battery with high energy density.
By Marko Spasenovic on October 15, 2012
Marko is a scientific researcher (PhD in Physics, University of Twente, NL), with experience in graphene and other nanomaterials. He is the owner of Graphene Tracker, Assistant Professor at the Institute of Physics in Belgrade, blogger and online content manager for Graphenea, co-founder of 2D Atomic Crystals (www.2d-atomicrystals.com), and a member of the Advisory Board of the Graphene Stakeholders Association.