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:7/31/2014)... Chicago, IL (PRWEB) July 31, 2014 ... wave of automation across the U.S., increasing unemployment, ... middle class. It is a Catch 22—we ... internationally, but this means fewer jobs,” says economist ... the just-released Pollina Corporate Top 10 Pro-Business States ...
(Date:7/31/2014)... Sales Horizons, a leader in sales training, ... course – Mastering the Complex Sale – ... from proven sales training programs used by thousands of ... online sales training course is available to every salesperson ... with customers, like technical support, engineers, clinical support, and ...
(Date:7/30/2014)... A study presented at the 2014 ... of CSL Behring,s C1 Inhibitor (C1-INH) concentrate in ... sensitized patients. C1-INH is a human protein and ... The study shows that post-transplant treatment with ... of complement components 3 and 4, suggesting that ...
(Date:7/30/2014)... July 30, 2014 Sales Horizons, a ... of blended sales training programs for companies engaged in ... programs used by thousands of salespeople over 25 years ... training program can be customized to address the unique ... blended sales training program consists of two ...
Breaking Biology Technology:ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 2ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 3ITRA Global Affiliate’s Pollina Corporate Top 10 Pro-Business States Minimize the Impact of Automation on Middle Class and Unemployment 4Sales Horizons Offers Mastering the Complex Sale - a Comprehensive, Online Sales Skills Training Course 2Sales Horizons Offers Mastering the Complex Sale - a Comprehensive, Online Sales Skills Training Course 3Study Suggests C1-INH May Aid in Prevention of Antibody-Mediated Rejection Following Kidney Transplant 2Study Suggests C1-INH May Aid in Prevention of Antibody-Mediated Rejection Following Kidney Transplant 3Sales Horizons Launches New Blended Sales Training Programs to Companies Engaged in Complex B2B Sales 2Sales Horizons Launches New Blended Sales Training Programs to Companies Engaged in Complex B2B Sales 3
... Idenix Pharmaceuticals, Inc. (Nasdaq: IDIX ) announced today ... upcoming Deutsche Bank 2009 Health Care Conference on Monday, May ... Boston.The live and archived webcast of the company presentation can ... Center at www.idenix.com . Please log ...
... SAN DIEGO, May 11 Neurocrine Biosciences, Inc. (Nasdaq: ... President and Chief Executive Officer of Neurocrine Biosciences will ... Care Conference in Boston. The live presentation takes place ... (ET)/2:05 p.m. Pacific Time (PT). The presentation will ...
... Neurologists to Plan Next Clinical StudiesOMAHA, Neb. and ... Board: TBIO) and Power3 Medical Products, Inc. (OTC ... the NuroPro(R) AD and NuroPro(R) PD tests for ... Academy of Neurology meeting in Seattle, WA. The ...
Cached Biology Technology:Neurocrine Biosciences to Present at the Deutsche Bank 34th Annual Health Care Conference 2Transgenomic and Power3 Medical Introduce NuroPro(R) Tests for Alzheimer's and Parkinson's Diseases at AAN Annual Meeting 2Transgenomic and Power3 Medical Introduce NuroPro(R) Tests for Alzheimer's and Parkinson's Diseases at AAN Annual Meeting 3Transgenomic and Power3 Medical Introduce NuroPro(R) Tests for Alzheimer's and Parkinson's Diseases at AAN Annual Meeting 4Transgenomic and Power3 Medical Introduce NuroPro(R) Tests for Alzheimer's and Parkinson's Diseases at AAN Annual Meeting 5
(Date:7/30/2014)... POTSDAM, N.Y. , July 30, 2014 /PRNewswire/ ... of spoof mitigation and liveness detection solutions for ... FIDO Alliance, an industry consortium revolutionizing online authentication ... COO Mark Cornett , "The decision to ... help make biometric authentication pervasive in use. We ...
(Date:7/30/2014)... Long before humans figured out how to create colors, ... bright butterfly wings of many different hues, for example. ... a more environmentally friendly way to make colored plastics. ... and architectures of materials rather than dyes, to ... Letters . , N. Asger Mortensen, Anders Kristensen and ...
(Date:7/30/2014)... Bjorn Brembs, professor of neurogenetics at the Institute of ... allowing readers and reviewers to run the underlying code ... leap forward for scientific publishing, by demonstrating a completely ... output. , Figure 3 in fact doesn,t really exist. ... F1000Research , and the figure is generated ,on ...
Breaking Biology News(10 mins):NexID Biometrics Joins the FIDO Alliance 2F1000Research brings static research figures to life 2
... Chinese hybrid rice genome, which was published in the Journal ... map of the rice genome. In an article published by ... scientists led by the Beijing Institute of Genomics (BIG) reported ... japonica subspecies of O. sativa." , The fine maps of ...
... an important molecular signaling mechanism whose existence has been,known, ... since the,identification of a mutant strain of Drosophila fruit ... Later studies,revealed that the Notch gene encodes a receptor ... and which is capable of,interacting with a ligand partner, ...
... new research indicates that it may all come down ... University scientists who had previously identified a key gene ... now shows that this gene's function appears to be ... by Leslie Vosshall's laboratory had previously shown that of ...
Cached Biology News:Whole genome fine map of rice completed 2Bound for destruction: Ubiquitination protects against improper Notch signaling 2Bound for destruction: Ubiquitination protects against improper Notch signaling 3Ancient olfaction protein is shared by many bugs, offering new pest control target 2
RayBio Human Chemokine Antibody Array 1.1 (8) with Accessory, detects 38 chemokine factors (for lysate) Class: Antibody Array Products Product Group: Antibody Array...
Vybrant® Multidrug Resistance Assay Kit...
... Platypus Contact Printing Kit contains choice of ... series of 100 / 200 micron squares ... 200 um x 10 mm lines, 3 ... 40 or 60 nm and pitch of ...
Request Info...
Biology Products: