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Porous graphene nanocages for battery applications

United States Patent

9,590,248
March 7, 2017
View the Complete Patent at the US Patent & Trademark Office
An active material composition includes a porous graphene nanocage and a source material. The source material may be a sulfur material. The source material may be an anodic material. A lithium-sulfur battery is provided that includes a cathode, an anode, a lithium salt, and an electrolyte, where the cathode of the lithium-sulfur battery includes a porous graphene nanocage and a sulfur material and at least a portion of the sulfur material is entrapped within the porous graphene nanocage. Also provided is a lithium-air battery that includes a cathode, an anode, a lithium salt, and an electrolyte, where the cathode includes a porous graphene nanocage and where the cathode may be free of a cathodic metal catalyst.
Amine; Khalil (Oak Brook, IL), Lu; Jun (Bolingbrook, IL), Du; Peng (Woodbridge, IL), Wen; Jianguo (Naperville, IL), Curtiss; Larry A. (Downers Grove, IL)
UCHICAGO ARGONNE, LLC (Chicago, IL)
13/ 796,672
March 12, 2013
GOVERNMENT RIGHTS The United States Government has rights in this invention pursuant to Contract No. DE-AC02-06CH11357 between the U.S. Department of Energy and UChicago Argonne, LLC, representing Argonne National Laboratory.