Phonon localization drives nanoregions in a relaxor ferroelectric
April 11, 2014 — Neutron scattering measurements reveal that phonon localization drives the generation of polar nanoregions (PNRs) in a relaxor ferroelectric. PNRs facilitate the ability of relaxor ferroelectrics to convert between electrical and mechanical forms of energy, which is used in applications ranging from medical ultrasound to military sonar devices.
Decoding the Resistivity of Solid Electrolytes for Batteries
April 02, 2014 — The atomic-scale origin of grain-boundary (GB) resistance in solid electrolytes has been revealed by electron microscopy and spectroscopy. Inorganic solid electrolytes have the potential for enabling intrinsically safe, energy-dense batteries.
Neutron Sciences Staff Give Back, Teach US Particle Accelerator School Courses
March 13, 2014 — About 50 students from around the world toured the Spallation Neutron Source accelerator tunnel at Oak Ridge National Laboratory as part of United States Particle Accelerator School last month.
New Composite Electrolyte for Advanced Solid State Batteries Shows that Two is Better than One
February 26, 2014 — A new composite electrolyte for batteries with high conduction has been made by combining two solid electrolytes with complementary properties. The composite optimizes the favorable properties of the individual components while minimizing their limitations and opens the door for the development of new solid-state batteries for energy-dense storage of electricity.
Using neutrons to probe and understand battery interfaces
February 14, 2014 — Neutron reflectometry at the Spallation Neutron Source has revealed the composition and growth characteristics of the spontaneous chemical reaction layer formed between a silicon battery anode and an organic electrolyte that ultimately limits the capacity of the battery. We determined that a 3.