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

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.
Inventors:
; ; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1417319
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
Patent Number(s):
9,870,871
Application Number:
15/260,197
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2016 Sep 08
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE