DOE SCIENCE NEWS SOURCE - RESEARCH

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Researchers at the Department of Energy’s Oak Ridge National Laboratory have successfully demonstrated the first 270-kW wireless power transfer to a light-duty electric vehicle. The demonstration used a Porsche Taycan and was conducted in collaboration with Volkswagen Group of America using the ORNL-developed polyphase wireless charging system.

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Understanding how materials can convert heat into electricity benefits from a view of those materials at the atomic scale. New research examined how the vibrational modes called phonons work in nanostructures and the interfaces between materials to more fully understand how heat transfers in those materials.

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The international collaboration presented their first results with new data in four years, featuring a new low-energy sample of electron neutrinos and a dataset doubled in size.

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Researchers at the Argonne National Laboratory have discovered the main reason why and how one of the more promising new cathode materials degrades with repeated cycling of lithium-ion batteries. The team’s new analysis method was key to the discovery.

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Quantum information devices need particles to be synchronized in space and time. In nickel molybdate (Ni2Mo3O8), nickel ions (Ni2+) form a triangular array of tetrahedrons and octahedrons with opposing magnetic spins. Electric fields in Ni2Mo3O8 induce parallel alignment of the spins; this alignment changes with time, producing spin excitons.

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By unraveling vibrational signatures and observing ion exchanges, an Oak Ridge National Laboratory team revealed how chemical species form in a highly reactive molten salt mixture of aluminum chloride and potassium chloride.

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: For the first time, scientists measured radium’s bonding interactions with oxygen atoms in an organic molecule. This finding will aid researchers developing chelators for the delivery of radium isotopes for cancer treatment. The results are important in part because they revealed that radium is less similar than expected to barium, which is often used as a substitute for radium during chelator development.

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A team of fusion researchers led by engineers at Princeton University and the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) have successfully deployed machine learning methods to suppress harmful edge instabilities — without sacrificing plasma performance. The research team demonstrated the highest fusion performance without the presence of edge bursts at two different fusion facilities — each with its own set of operating parameters.

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Complex metal alloys enter a new era of predictive design for aerospace and other high-temperature applications.

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Researchers at Oak Ridge National Laboratory have developed free data sets to estimate how much energy any building in the contiguous U.S. will use in 2100. These data sets provide planners a way to anticipate future energy needs as the climate changes.