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14
nanotimes
10-02 :: February 2010
Companies
Nano Graphene //
New Class of Supercapacitor Electrode Materials
N
anotek Instruments, parent company of Angstron Materials leads the industry as the only
Angstron Materials Inc., has been issued advanced materials company to offer large quantities
U.S. Patent 7,623,340 for its development of a new of both pristine graphene and oxidized graphene.
high-performing class of meso-porous nanocom- Multi-layer graphene, both pristine and oxidized ver-
posites. The new nanocomposite provides a supe- sions, are collectively referred to as nano graphene
rior supercapacitor electrode material for uses that platelets (NGPs). NGPs offer improved performance
incälude hybrid electric vehicles (EVs), transportation properties including very high Young’s modulus,
and energy storage. The technology is based on the strength and surface area, superior thermal and
company’s breakthrough discovery of nano graphene electrical conductivity, lower density and less weight.
platelets (NGPs). The NGP-based nanocomposite NGPs are also resistant to gas permeation. As a result,
exhibits high levels of capacitance and electrical con- Angstron is able to work with companies to develop
ductivity as well as demonstrating chemical stability products for batteries, fuel cells, supercapacitors,
and low mass density. Both NGPs and NGP-based light weight structural components as well as electro-
nanocomposites can be mass produced cost-effec- magnetic interference (EMI), radio frequency inter-
tively when compared to carbon nano-tubes and ference (RFI), electrostatic discharge (ESD), lightning
fibers. strike and other functional and structural composite
applications. In addition to its ability to provide sam-
Angstron will make the nanocomposite material, and ple materials and scale-up, Angstron partners with
will provide the meso-porous NGP nanocomposites customers to help manufacturers identify optimal de-
in two forms: (1) NGPs coated with a thin layer of signs, experience with research and development to
conducting polymer or surface functional groups help manufacturers harness the advantages of nano
and (2) NGPs bonded by a conductive binder, compositions and manufacturing processes. Availa-
coating, or matrix material such as a polymeric ble in a wide range of geometries, NGP products
carbon. The platelets in these products are compri- are easily surface functionalizable for polymer and
sed of a sheet of graphite plane or multiple sheets of common solvent applications and offer high loading
graphite plane with a thickness less than 10nm and potential for nanocomposite applications. Angstron
an average length, width, or diameter smaller than combines real world technology to make next gene-
500nm. The binder or matrix material bonded to the ration products in the aerospace, automotive, ener-
platelets to form the nanocomposite material create gy, marine, construction, electronics, medical, and
a surface area greater than 500m
2
/gm. telecommunications markets.

http://www.angstronmaterials.com
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