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Graphene materials having randomly distributed two-dimensional structural defects

United States Patent

May 31, 2016
View the Complete Patent at the US Patent & Trademark Office
Graphene-based storage materials for high-power battery applications are provided. The storage materials are composed of vertical stacks of graphene sheets and have reduced resistance for Li ion transport. This reduced resistance is achieved by incorporating a random distribution of structural defects into the stacked graphene sheets, whereby the structural defects facilitate the diffusion of Li ions into the interior of the storage materials.
Kung; Harold H. (Wilmette, IL), Zhao; Xin (Evanston, IL), Hayner; Cary M. (Evanston, IL), Kung; Mayfair C. (Wilmette, IL)
14/ 025,572
September 12, 2013
REFERENCE TO GOVERNMENT RIGHTS This invention was made with government support under DE-AC02-06CH11357 awarded by Department of Energy. The government has certain rights in the invention.