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

Nanotech could rid cattle of ticks, with less collateral damage September 1st, 2015

Scientists 'squeeze' light one particle at a time: A team of scientists have measured a bizarre effect in quantum physics, in which individual particles of light are said to have been 'squeezed' -- an achievement which at least one textbook had written off as hopeless September 1st, 2015

Using ultrathin sheets to discover new class of wrapped shapes: UMass Amherst materials researchers describe a new regime of wrapped shapes August 31st, 2015

New material science research may advance tech tools August 31st, 2015

Products

Nanofilm Introduces Clarity AR Lens Cleaner for Anti-Reflective Superhydrophobic Lenses August 20th, 2015

Pixelligent Launches New PixClear® Light Extraction Materials for OLED Lighting August 4th, 2015

Aculon Launches NanoProof Series for PCB Waterproofing July 20th, 2015

Philips Introduces Quantum Dot TV with Color IQ™ Technology from QD Vision: Manufacturer is first to offer quantum dot displays for both TVs and monitors June 30th, 2015

Nanotubes/Buckyballs/Fullerenes

Developing Component Scale Composites Using Nanocarbons August 26th, 2015

Southampton scientists find new way to detect ortho-para conversion in water August 25th, 2015

Revolutionary MIT-Developed Nanotechnology Company Showcases at CAMX in Dallas August 20th, 2015

Engineering a better 'Do: Purdue researchers are learning how August 4th, 2015

Announcements

Nanotech could rid cattle of ticks, with less collateral damage September 1st, 2015

Scientists 'squeeze' light one particle at a time: A team of scientists have measured a bizarre effect in quantum physics, in which individual particles of light are said to have been 'squeezed' -- an achievement which at least one textbook had written off as hopeless September 1st, 2015

An engineered surface unsticks sticky water droplets August 31st, 2015

New material science research may advance tech tools August 31st, 2015

Energy

Artificial leaf harnesses sunlight for efficient fuel production August 30th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Nanotechnology that will impact the Security & Defense sectors to be discussed at NanoSD2015 conference August 25th, 2015

Industrial Nanotech, Inc. Provides Update On Hospital Project, PCAOB Audit, and New Heat Shield™ Line August 24th, 2015

Automotive/Transportation

CWRU researchers efficiently charge a lithium-ion battery with solar cell: Coupling with perovskite solar cell holds potential for cleaner cars and more August 27th, 2015

Lehigh University-DuPont tribology research seeks to reduce wear and waste August 13th, 2015

Flexible dielectric polymer can stand the heat August 6th, 2015

Sol-gel capacitor dielectric offers record-high energy storage July 30th, 2015

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

Artificial leaf harnesses sunlight for efficient fuel production August 30th, 2015

CWRU researchers efficiently charge a lithium-ion battery with solar cell: Coupling with perovskite solar cell holds potential for cleaner cars and more August 27th, 2015

'Diamonds from the sky' approach turns CO2 into valuable products August 19th, 2015

Drexel engineers 'sandwich' atomic layers to make new materials for energy storage August 15th, 2015

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