Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Angstron Invents High Energy Density Graphene-Based Supercapacitor

Abstract:
Angstron has invented a graphene-based supercapacitor with ultra high energy density

Angstron Invents High Energy Density Graphene-Based Supercapacitor

Dayton, OH | Posted on January 6th, 2011

Angstron Materials Inc., has invented a graphene-based supercapacitor with ultra high energy density, a feature that permits storage of a significant amount of energy. As a rechargeable energy storage device, supercapacitors can be charged and discharged more quickly than batteries but have been challenged by their inability to store energy in the amounts required by automotive and electronic applications. Angstron's graphene-based supercapacitor has demonstrated an energy density that exceeds that of commercially available supercapacitors and is comparable with nickel metal hydride batteries.

"A supercapacitor that can store this much energy yet be completely charged or discharged in seconds or minutes offers a number of promising applications for the automotive and electronics industries," said Dr. Bor Jang, co-founder of Angstron.

"This type of supercapacitor is especially attractive for electric vehicle applications where the pairing of supercapacitors with fuel cells or batteries could provide a hybrid system capable of delivering high power acceleration and energy recovery during braking."

The world's largest producer of nano graphene platelets (NGPs), Angstron's single layer graphene has exhibited the highest electrical properties including exceptional in-plane electrical conductivity (up to ~ 20,000 S/cm) when compared to other nanomaterials including carbon nano-tubes (CNTs) and carbon nano-fibers (CNFs). Graphene also offers a very high specific surface area - up to 2675 square meters per gram. By creating curved graphene sheets that resist restacking, Angstron was able to dramatically improve specific surface area and energy density for greater energy storage.

"The risk during the manufacture of the electrode is that the graphene layers could be pushed back together," Dr. Jang explained. "We eliminated the problem of potential restacking by creating curved graphene sheets. This allows us to maintain an optimal surface area for more energy storage. The graphene electrode also enables fast charging and discharging of the supercapacitor. This development has pushed the specific energy density of an electrical double-layer (EDL) graphene-enabled supercapacitor to an unprecedented level of nearly 90 watt hours per kilogram at room temperature and a level of 136 watt hours per kilogram at 80 degrees Celsius."

####

About Angstron Materials
Angstron is the first advanced materials company to offer large quantities of ultra-thin, pristine nano-graphene platelets (NGPs). Angstron is also significantly reducing production cost barriers with its high performance nano-graphene solutions. A new 22,000 square foot manufacturing facility, based in Dayton, Ohio, allows our company to continue its research and development efforts while providing small to large batch processing and production.

For more information, please click here

Contacts:
Ron Beech
Phone: 937-331-9884
Fax: 937-558-0606

Copyright © Angstron Materials

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Composite Pipe Long Term Testing Facility February 10th, 2016

Scientists take nanoparticle snapshots February 10th, 2016

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Products

PEN Inc. Announces Strategy to Broaden Clarity Branded Products Business February 4th, 2016

Graphenea increases capacity, reduces prices January 25th, 2016

Corrosion-Fighter Tesla NanoCoatings Pioneers 2x1 Wet-on-Wet Process January 20th, 2016

Iranian Company Mass-Produces Self-Cleaning Nanopaints November 14th, 2015

Nanotubes/Buckyballs/Fullerenes

Superconductivity: Footballs with no resistance - Indications of light-induced lossless electricity transmission in fullerenes contribute to the search for superconducting materials for practical applications February 9th, 2016

The iron stepping stones to better wearable tech without semiconductors February 8th, 2016

Nano-coating makes coaxial cables lighter: Rice University scientists replace metal with carbon nanotubes for aerospace use January 28th, 2016

Scientists provide new guideline for synthesis of fullerene electron acceptors January 28th, 2016

Announcements

Composite Pipe Long Term Testing Facility February 10th, 2016

Scientists take nanoparticle snapshots February 10th, 2016

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Energy

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Canadian physicists discover new properties of superconductivity February 8th, 2016

Host-guest nanowires for efficient water splitting and solar energy storage February 7th, 2016

February 4th, 2016

Automotive/Transportation

Canadian physicists discover new properties of superconductivity February 8th, 2016

Researchers develop completely new kind of polymer: Hybrid polymers could lead to new concepts in self-repairing materials, drug delivery and artificial muscles January 30th, 2016

An alternative to platinum: Iron-nitrogen compounds as catalysts in graphene January 28th, 2016

LC.300 Series Nanopositioning Controller from nPoint January 28th, 2016

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Canadian physicists discover new properties of superconductivity February 8th, 2016

From allergens to anodes: Pollen derived battery electrodes February 8th, 2016

Host-guest nanowires for efficient water splitting and solar energy storage February 7th, 2016

Lithium battery catalyst found to harm key soil microorganism February 7th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic