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Caption: Jaswinder Sharma makes battery coin cells with a lightweight current collector made of thin layers of aligned carbon fibers in a polymer with carbon nanotubes. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy

Electric vehicles can drive longer distances if their lithium-ion batteries deliver more energy in a lighter package. A prime weight-loss candidate is the current collector, a component that often adds 10% to the weight of a battery cell without contributing energy.

Oak Ridge National Laboratory
A high school senior at Oak Ridge National Laboratory has published research showing that, while it’s just part of a complex story, higher electricity costs alone cannot be counted on to reduce demand for electricity and cut greenhouse gas emissions. The paper, published in “Susta...
Oak Ridge National Laboratory
Piezoelectric materials convert mechanical stress into electrical energy in products from electric cigarette lighters to ultrasound machines. Unfortunately most contain lead, which is toxic. “Lead is extremely active in these materials, so we need to find another chemical element ...
Oak Ridge National Laboratory
Neutron measurements at Oak Ridge National Laboratory’s Spallation Neutron Source are giving physicists new insight into the behavior of quantum magnets. A research team led by Young-June Kim from the University of Toronto used neutron spectroscopy to observe a novel type of energ...
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Trane Commercial Systems and Oak Ridge National Laboratory have coaxed 20 percent greater performance out of a baseline commercial rooftop air conditioning unit with the potential for even better efficiency by switching refrigerants. Through a cooperative research and develo...

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The next-generation Earth system model will simulate climate systems at unprecedented resolution over an unprecedented time scale in order to understand climate change, Earth system feedbacks and potential tipping points. The Accelerated Climate Model for Energy project, led...
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Inventors and innovators are invited to submit their ideas to JUMP, Oak Ridge National Laboratory’s latest buildings technology crowdsourcing platform. JUMP, launched in partnership with General Electric, AO Smith and United Technologies Research Center, aims to solicit nove...

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Bioenergy researchers at Oak Ridge National Laboratory have explained the molecular mechanism of an effect that has puzzled scientists for years. A team led by Jeremy Smith has discovered that lignin, when pretreated with a tetrahydrofuran-water solvent, shifts from a globul...
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Inspections will play a crucial role in the decisions to extend operating licenses for many of the nation’s aging nuclear power plants, and Oak Ridge National Laboratory has a tool that could help. “The question that needs to be answered is whether the concrete structures th...
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By using additive manufacturing to print active components of motors, Oak Ridge National Laboratory researchers are conducting research that cannot be done with conventional methods. “To date, 3-D printed induction motors are made of plastic core pieces with copper windings ...