4 Like 0 Dislike
http://dailyreckoning.com/graphene A new groundbreaking material recently discovered has the potential to change the world: Water filtration, cellular and battery technology, aircraft and automotive finishing will never be the same. Find out what Graphene is, and how you can take advantage of this unique technology at the Daily Reckoning: http://dailyreckoning.com/youtubesignup Connect with us on Facebook: http://www.facebook.com/TheDailyReckoning Follow on Twitter: https://twitter.com/#!/TheDailyReckoning
A new prototype electric car battery could take you a lot farther and last a lot longer thanks to a team of researchers at the University of Arizona. Subscribe! http://bit.ly/AmerChemSOc Facebook! https://www.facebook.com/AmericanChem... Twitter! https://twitter.com/ACSpressroom You might also like: ACS PUBS – JPCL Perspectives Videos: https://www.youtube.com/watch?v=Pl-o31lhIu0&list=PLDEE0898E6A1CE852 Press Conferences #NOLA: https://www.youtube.com/watch?v=SJoMMnl6eKs&list=PLLG7h7fPoH8Jyqtiv9eOb3nfas3LDxG_p Speaking of Chemistry: https://www.youtube.com/watch?v=-wUPb1BDSOs&list=PLM2CTqSTy7cTLk-n7SOk9KrwCc1D8KKiH Prized Science: https://www.youtube.com/watch?v=JcHSthRHciI&list=PLLG7h7fPoH8IO6wJ5vhENd6-vHJYbN5vo Produced by the American Chemical Society, the world’s largest scientific society. ACS is a global leader in providing access to chemistry-related information and research through its multiple databases, peer-reviewed journals and scientific conferences. Join the American Chemical Society! https://bit.ly/Join_ACS Researched published in: ACS Macro Letters Link: http://pubs.acs.org/doi/full/10.1021/mz400649w
http://www.ted.com What's the key to using alternative energy, like solar and wind? Storage -- so we can have power on tap even when the sun's not out and the wind's not blowing. In this accessible, inspiring talk, Donald Sadoway takes to the blackboard to show us the future of large-scale batteries that store renewable energy. As he says: "We need to think about the problem differently. We need to think big. We need to think cheap." TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate If you have questions or comments about this or other TED videos, please go to http://support.ted.com
Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: •Reduced energy losses during transfer of energy to the battery. •A charge potential that is relatively unaffected by up to 25% misalignment of vehicle. •Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consumption. Previously worrisome traffic delays now provide longer periods of charge while passing over in-motion chargers. Inclement weather such as rain and snow do not affect the charging capability. At ORNL, we are working to develop the robust nature of wireless power technology to provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions.
This animation illustrates the use of lignin as a precursor to carbon fiber. A sustainable, renewable resource, lignin is derived from woody plants such as trees and switchgrass. Lignin is the glue that binds a tree's cell walls together...and it comprises up to 30 percent of a tree's mass. After harvesting, the tree is transported to a chip mill for conversion to wood chips for use as a feedstock by either a bio-refinery or pulp and paper mill. At the bio-refinery, lignin is dissolved away from the cellulose into black liquor, and ethanol is produced from the cellulose contained in the wood chips. At the pulp mill, lignin is also dissolved away from the cellulose into black liquor, and the cellulose in the wood is used primarily for production of paper but also chemicals. In both cases, the lignin is precipitated out of the black liquor. It is washed...then undergoes a drying process. Next it is extruded...and pelletized. The pellets can be packaged and shipped to another production facility or they can continue to the next step as illustrated here, where the pellets are fed into a melt extruder. The combination of heat and pressure melts the pellets. The molten lignin feeds into a metering pump...then through an extrusion die creating very fine filaments that solidify and are wound onto a spool. The combination of extrusion die hole diameter and winding speed determines the final diameter of the lignin filaments.
Oak Ridge National Laboratory is developing new and advanced materials processing technologies for batteries. These can lead to new battery concepts of which one might be an inherently safe, low-cost, high-performance all solid state battery.
Developments include new material handling and advanced assembling technologies...new ways of depositing materials and creating coatings...
...new advanced photonic processing for drying, sintering or solidification.
Commercial industry, under the pressure of operating at high production yield, cannot take a step back from currently available processing technologies to create new concepts, designs and develop new low-cost and reliable technology with uncertain outcomes.
Universities have very limited capabilities in doing large scale process development.
National laboratories need to fill these roles.
Oak Ridge National Laboratory has a major focus on new process development for a variety of applications and will help industry re-invent materials processing and device assembling for advanced batteries.