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Title: Graphene macro-assembly-fullerene composite for electrical energy storage

Patent ·
OSTI ID:1650813
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Disclosed here is a method for producing a graphene macro-assembly (GMA)-fullerene composite, comprising providing a GMA comprising a three-dimensional network of graphene sheets crosslinked by covalent carbon bonds, and incorporating at least 20 wt. % of at least one fullerene compound into the GMA based on the initial weight of the GMA to obtain a GMA-fullerene composite. Also described are a GMA-fullerene composite produced, an electrode comprising the GMA-fullerene composite, and a supercapacitor comprising the electrode and optionally an organic or ionic liquid electrolyte in contact with the electrode.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
10,633,255
Application Number:
15/805,010
OSTI ID:
1650813
Resource Relation:
Patent File Date: 11/06/2017
Country of Publication:
United States
Language:
English

References (14)

Fibril composite electrode for electrochemical capacitors patent December 2002
High surface area and low structure carbon blacks for energy storage applications patent-application August 2012
Capacitors and supercapacitors containing modified carbon products patent February 2003
Fullerene-based secondary cell electrodes patent-application December 2002
Cross-Linked Carbon Nanotube Networks patent-application January 2014
Aerogels of carbon nanotubes patent-application May 2011
Graphene Aerogels patent-application February 2012
Carbon supercapacitor electrode materials patent November 1999
Electrode active material composition and electrochemical capacitor including the same patent-application March 2013
Graphite-carbon composite electrode for supercapacitors patent May 2011
Process for producing carbon foams for energy storage devices patent August 1998
Highly Crystalline 3D Graphene patent-application February 2017
High-Density 3D Graphene-Based Monolith and Related Materials, Methods, and Devices patent-application June 2014
Method of producing graphite-carbon composite electrodes for supercapacitors patent-application March 2009

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25 ENERGY STORAGE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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