Navigation Links
Activated graphene makes superior supercapacitors for energy storage
Date:5/12/2011

UPTON, NY - Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have helped to uncover the nanoscale structure of a novel form of carbon, contributing to an explanation of why this new material acts like a super-absorbent sponge when it comes to soaking up electric charge. The material, which was recently created at The University of Texas - Austin, can be incorporated into "supercapacitor" energy-storage devices with remarkably high storage capacity while retaining other attractive attributes such as superfast energy release, quick recharge time, and a lifetime of at least 10,000 charge/discharge cycles.

"Those properties make this new form of carbon particularly attractive for meeting electrical energy storage needs that also require a quick release of energy - for instance, in electric vehicles or to smooth out power availability from intermittent energy sources, such as wind and solar power," said Brookhaven materials scientist Eric Stach, a co-author on a paper describing the material published in Science on May 12, 2011.

Supercapacitors are similar to batteries in that both store electric charge. Batteries do so through chemical reactions between metallic electrodes and a liquid electrolyte. Because these chemicals take time to react, energy is stored and released relatively slowly. But batteries can store a lot of energy and release it over a fairly long time.

Supercapacitors, on the other hand, store charge in the form of ions on the surface of the electrodes, similar to static electricity, rather than relying on chemical reactions. Charging the electrodes causes ions in the electrolyte to separate, or polarize, as well - so charge gets stored at the interface between the electrodes and the electrolyte. Pores in the electrode increase the surface area over which the electrolyte can flow and interact - increasing the amount of energy that can be stored.

But because most supercapacitors c
'/>"/>

Contact: Karen McNulty Walsh
kmcnulty@bnl.gov
631-344-8350
DOE/Brookhaven National Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. First Pediatric Patient Treated With Aptocine(TM), a Novel Light-Activated Drug, in Neurofibromatosis Study
2. Cardium Announces New Orthobiologics Product Initiative Extending Gene Activated Matrix Technology to Deliver Bone Growth Factors
3. Sinovac Enters Veterinary Vaccine Market with Inactivated Rabies Vaccine
4. Russia Chooses Inactivated Polio Vaccine from Sanofi Pasteur for Primary Immunization of all Infants
5. Sinovac Initiates Clinical Trials for Inactivated Hepatitis A Vaccine in Ukraine
6. /R E P E A T -- Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours/
7. Oncolytics Biotech Inc. Announces U.S. Phase 2 Combination Clinical Trial for Non-Small Cell Lung Cancer Patients with K-RAS or EGFR-Activated Tumours
8. Why graphene holds the key to the future
9. GRAPHENE-CA appointed an EU Future Emerging Technology flagship pilot
10. 2 graphene layers may be better than 1
11. Researchers pinpoint graphenes varying conductivity levels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/15/2014)... device," Nobel laureate Herbert Kroemer famously observed, referring ... the junctures where layers of different materials meet. ... between layers of metal oxides are becoming increasingly ... spintronics, high-temperature superconductors, ferroelectrics and multiferroics. Realizing the ...
(Date:1/15/2014)... 15, 2014   Niagara Thermal Products is proud ... BioBlower Technologies LLC ("B3") as the critical thermal component ... from the Army Corps of Engineers.  B3 has developed ... biological contaminants and destroys VOCs and other chemical pollutants, ...
(Date:1/15/2014)... and SAN JOSE, California , January ... company developing antibody-drug conjugates for cancer, today announced the appointment ... Directors. Dr Reynolds has over 20 years, development experience gained ... at Seattle Genetics. "I am delighted to welcome ...
(Date:1/15/2014)... 2014 A study has been launched to ... 1 track could help to tackle the problem of obesity. ... (a GP surgery based in Stowmarket) and academics at University ... Telemetry technology, which is inspired by equipment used to ...
Breaking Biology Technology:A deeper look at interfaces 2Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4
... VIEW, Calif., Nov. 7, 2011 VIVUS, Inc. (NASDAQ: ... and commercialization of novel therapeutic products, today reported its financial ... 30, 2011. Third Quarter ResultsFor the ... loss of $8.6 million, or $0.10 net loss per share, ...
... November 7, 2011 Note: numbers in square ... Boulter is available for interview. Investment fund manager ... today won a court battle with 3M over the multi-national ... The High Court in London found 3M was ...
... HANOVER, N.J., Nov. 7, 2011 Novartis announced today ... with active systemic juvenile idiopathic arthritis (SJIA) were able ... described as steroids) within 28 weeks of commencing treatment ... of the study, which met both primary endpoints, will ...
Cached Biology Technology:VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 2VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 3VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 4VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 5VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 6VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 7VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 8VIVUS Reports Third Quarter and First Nine Months 2011 Financial Results 93M Forced to Pay for Breach of Obligations Over MRSA - High Court 23M Forced to Pay for Breach of Obligations Over MRSA - High Court 33M Forced to Pay for Breach of Obligations Over MRSA - High Court 4Novartis Phase III Study Shows ACZ885 Helped Substantially Reduce Steroid Use in 45% of Patients With Serious Form of Childhood Arthritis 2Novartis Phase III Study Shows ACZ885 Helped Substantially Reduce Steroid Use in 45% of Patients With Serious Form of Childhood Arthritis 3Novartis Phase III Study Shows ACZ885 Helped Substantially Reduce Steroid Use in 45% of Patients With Serious Form of Childhood Arthritis 4Novartis Phase III Study Shows ACZ885 Helped Substantially Reduce Steroid Use in 45% of Patients With Serious Form of Childhood Arthritis 5Novartis Phase III Study Shows ACZ885 Helped Substantially Reduce Steroid Use in 45% of Patients With Serious Form of Childhood Arthritis 6Novartis Phase III Study Shows ACZ885 Helped Substantially Reduce Steroid Use in 45% of Patients With Serious Form of Childhood Arthritis 7
(Date:4/17/2014)... MANHATTAN, KAN. A Kansas State University engineer ... security and remotely detects improvised explosive devices. The ... , William Dunn, the Steven M. and Kay ... of mechanical and nuclear engineering, and his research ... explosives hidden underground or in car trunks. The ...
(Date:4/17/2014)... Calif. One day about eight years ago, ... California, Riverside, and her father were on a field trip ... upon an orchid they had never seen before. , Unable ... on orchids. The orchid turned out to be an ... Lophiaris silverarum . , "Lophiaris" is the genus name, ...
(Date:4/17/2014)... is available in German . ... the protection money demanded of him, he can expect his ... however, as fear of the consequences is enough to make ... parasitic birds, which lay their eggs in other birds, nests. ... brood parasites take their revenge by destroying the entire nest. ...
Breaking Biology News(10 mins):Patented research remotely detects nitrogen-rich explosives 2Orchid named after UC Riverside researcher 2Orchid named after UC Riverside researcher 3Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3
... 2012 Chiltern International Limited (Chiltern), a global contract ... James Gunter have joined Chiltern, bringing their expertise in ... strengthen our Global Clinical Development services. ... Cedric Burg has been appointed to the position of ...
... pests by using ultrasonic frequencies are available and marketed ... been demonstrated as being effective in repelling insect pests ... of evidence for the efficacy of such devices, they ... bugs are readily available. However, according to a ...
... reprogramming a 7-year-old girl,s own immune cells to attack ... has achieved a complete response in his patient, who ... The innovative experimental therapy used bioengineered T cells, custom-designed ... leukemia cells. After the treatment, the child,s doctors found ...
Cached Biology News:Chiltern Welcomes Cedric Burg And James Gunter 2Engineered immune cells produce complete response in child with an aggressive pediatric leukemia 2Engineered immune cells produce complete response in child with an aggressive pediatric leukemia 3
... cultured in DMEM with 4 mM L-glutamine medium ... In order to keep the antigens in ... The cells are arrayed on a 12-well ... surface specifically treated to enhance cellular attachment and ...
... cultured in DMEM and harvested at the log ... the antigens in their native forms, cells were ... on a 12-well (5 mm) adhesive coated slide, ... cellular attachment and to minimize background staining. ...
... P815 cells were cultured in DMEM and harvested ... order to keep the antigens in their native ... cells are arrayed on a 12-well (5 mm) ... treated to enhance cellular attachment and to minimize ...
...
Biology Products: