Microstructural impacts on ionic conductivity of oxide solid electrolytes from a combined atomistic-mesoscale approach


Academic paper from Lawrence Livermore National Laboratory (LLNL) scientists in collaboration with San Francisco State University and the The Pennsylvania State University. Abstract "Although multiple oxide-based solid electrolyte materials with intrinsically high ionic conductivities have emerged, practical processing and synthesis routes introduce grain boundaries and other interfaces t... » read more

Native lattice strain induced structural earthquake in sodium layered oxide cathodes (batteries)


Abstract "High-voltage operation is essential for the energy and power densities of battery cathode materials, but its stabilization remains a universal challenge. To date, the degradation origin has been mostly attributed to cycling-initiated structural deformation while the effect of native crystallographic defects induced during the sophisticated synthesis process has been significantly ove... » read more

Advancing Electric Vehicle Battery Characterization By Integrating Drive Cycle On Cooling Impacts


Battery powered electric vehicles (EVs) and hybrid electric vehicles (HEVs) have been gaining market share as the public’s environmental concerns drive the demand for better fuel efficiency. Apart from the need to improve the mileage one can drive before recharging, battery reliability is another major concern. Effective cooling in intense charge/discharge conditions is crucial to minimizi... » read more

Realizing The Future Of Fast EV Charging Through CoolSiC Based Topology Design


While consumers are keen to reduce their carbon footprint, the move to E-Mobility, especially private electric vehicles (EV), is hindered by the limited charging infrastructure, most notably in fast charging. This white paper reviews the charging landscape and examines implementation approaches for fast DC chargers. Specific focus is placed on chargers delivering 350 kW and more for fast electr... » read more

New Ways To Improve Batteries


Researchers around the world are racing to develop more efficient, denser, and safer battery technology, and they are reaching far beyond where research has gone before. Much of this is being driven by concern over exhaust from internal combustion engines, which are responsible for a significant portion of global CO2 emissions. Nearly all carmakers today have announced plans to develop batte... » read more

Batteries Take Center Stage


For any mobile electronic device, the biggest limiting factors are the size, age, type, and utilization of the batteries. Battery technology is improving on multiple fronts. The batteries themselves are becoming more efficient. They are storing more energy per unit of area, and work is underway to provide faster charging and to increase the percentage of that energy that can be used, as well... » read more

Power/Performance Bits: Dec. 6


Tunable 2D semiconductors Researchers from the Singapore University of Technology and Design (SUTD), Hengyang Normal University, Nanjing University, National University of Singapore, and Zhejiang University identified a family of 2D semiconductors that could have lower resistance and enable further scaling. “Due to the quantum tunnelling effect, shrinking a silicon-based transistor too sm... » read more

The Sky’s The Limit For Electric Airplanes


Together, Rolls-Royce and Electroflight are ushering in the third age of aviation, with an all-electric aircraft capable of speeds exceeding 300 mph. A primary challenge is optimizing the 1,047-pound (475 kg) battery pack for structural strength, thermal management, and other critical performance criteria. As the team raced to introduce the world’s fastest zero-emissions aircraft, multiphysic... » read more

Making Batteries Denser And Safer


Battery technology is improving swiftly, driven by the rapidly rising demand for electric vehicles and the vast body of knowledge developed by the semiconductor industry. The market for electric vehicles (EVs) is on a fast upward trajectory, with global sales predicted to grow more than 12 times to more than 31 million vehicles. In fact, EVs will account for almost a third of new vehicle sal... » read more

Power/Performance Bits: Aug. 24


Low power AI Engineers at the Swiss Center for Electronics and Microtechnology (CSEM) designed an SoC for edge AI applications that can run on solar power or a small battery. The SoC consists of an ASIC chip with RISC-V processor developed at CSEM along with two tightly coupled machine-learning accelerators: one for face detection, for example, and one for classification. The first is a bin... » read more

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