ORNL microscopy directly images problematic lithium dendrites in batteries
March 06, 2015 — OAK RIDGE, Tenn., March 6, 2015—Scientists at the Department of Energy’s Oak Ridge National Laboratory have captured the first real-time nanoscale images of lithium dendrite structures known to degrade lithium-ion batteries. The ORNL team’s electron microscopy could help researchers address long-standing issues related to battery performance and safety.
ORNL researchers tune friction in ionic solids at the nanoscale
January 27, 2015 — OAK RIDGE, Tenn. Jan 27, 2015 – Friction impacts motion, hence the need to control friction forces.
American Physical Society honors three from ORNL
January 14, 2015 — OAK RIDGE, Tenn., Jan. 14, 2015 – Three researchers from the Department of Energy's Oak Ridge National Laboratory have been honored with fellowships from the American Physical Society. Bobby Sumpter, Randy Fishman and Thomas Papenbrock were each recognized for their exceptional contributions to the physical sciences.
ORNL microscopy pencils patterns in polymers at the nanoscale
December 17, 2014 — OAK RIDGE, Tenn., Dec. 17, 2014—Scientists at the Department of Energy’s Oak Ridge National Laboratory have used advanced microscopy to carve out nanoscale designs on the surface of a new class of ionic polymer materials for the first time.
ORNL materials researchers get first look at atom-thin boundaries
November 10, 2014 — OAK RIDGE, Tenn., Nov. 10, 2014—Scientists at the Department of Energy’s Oak Ridge National Laboratory have made the first direct observations of a one-dimensional boundary separating two different, atom-thin materials, enabling studies of long-theorized phenomena at these interfaces.
Good vibrations give electrons excitations that rock an insulator to go metallic
November 10, 2014 — OAK RIDGE, Tenn., Nov. 10, 2014—For more than 50 years, scientists have debated what turns particular oxide insulators, in which electrons barely move, into metals, in which electrons flow freely. Some scientists sided with Nobel Prize–winning physicist Nevill Mott in thinking direct interactions between electrons were the key.
ORNL thermomagnetic processing method provides path to new materials
November 06, 2014 — OAK RIDGE, Tenn., Nov. 6, 2014 – For much the same reason LCD televisions offer eye-popping performance, a thermomagnetic processing method developed at the Department of Energy’s Oak Ridge National Laboratory can advance the performance of polymers.
Super stable garnet ceramics may be ideal for high-energy lithium batteries
October 21, 2014 — OAK RIDGE, Tenn., Oct. 21, 2014—Scientists at the Department of Energy’s Oak Ridge National Laboratory have discovered exceptional properties in a garnet material that could enable development of higher-energy battery designs.
ORNL researchers make first observation of atoms moving inside bulk material
October 13, 2014 — OAK RIDGE, Tenn., Oct. 13, 2014 – Researchers at the Department of Energy's Oak Ridge National Laboratory have obtained the first direct observations of atomic diffusion inside a bulk material.
Rubber meets the road with new ORNL carbon, battery technologies
August 27, 2014 — OAK RIDGE, Tenn., Aug. 27, 2014 – Recycled tires could see new life in lithium-ion batteries that provide power to plug-in electric vehicles and store energy produced by wind and solar, say researchers at the Department of Energy’s Oak Ridge National Laboratory.