Search Results Found For: "ORNL"

ORNL demonstrates bi-directional wireless charging on UPS delivery van

Researchers at the DOE’s Oak Ridge National Laboratory (ORNL) recently demonstrated a 20-kilowatt bi-directional wireless charging system installed on a UPS medium-duty, plug-in hybrid electric delivery truck. In the demo, the system transferred power at more than 92% efficiency between the truck and a charging pad across an 11-inch air gap, using two electromagnetic coupling… Read more »

ORNL develops 120 kW wireless charging prototype with 97% efficiency

The DOE’s Oak Ridge National Laboratory (ORNL) has created a 120 kW wireless charging system with a mere six-inch air gap between the battery and coils. Tests have shown the experiment to be 97% efficient, rivaling wired high-power fast chargers. Their previous demonstration was a much smaller 20 kW system currently being modified for several… Read more »

New ORNL hardware-in-the-loop facility simulates advanced ICEs combined with electrification

Researchers at Oak Ridge National Laboratory (ORNL) have developed a new testing capability to explore new automotive technology, including hybrid vehicle architectures, in real-world drive cycles. The new facility is focused on low-temperature combustion engines, but builds upon the powertrain-in-the-loop expertise established by ORNL’s Vehicle Systems Integration Laboratory. The hardware-in-the-loop setup includes a transient dynamometer… Read more »

ORNL breakthrough could enable wider application of graphene composites

Graphene, a two-dimensional hexagonal lattice of carbon atoms, has great potential in a number of EV-related applications, including anodes, lithium-sulfur batteries and ultracapacitors. With current technology, however, it’s impractical to use on a large scale, and researchers have been limited to using small flakes of the material. Now a team of researchers at the DOE’s… Read more »

ORNL researchers develop Virtual Integrated Battery Environment design tool

As part of the DOE’s Computer Aided Engineering for Batteries (CAEBAT) project, scientists at the Oak Ridge National Laboratory (ORNL) have developed an open-architecture battery modeling framework that integrates multi-physics and multi-scale battery models. The Virtual Integrated Battery Environment (VIBE) allows researchers to test lithium-ion batteries under different simulated scenarios. The physics phenomena of interest… Read more »

ORNL team demonstrates high-voltage solid-state battery with impressive cycle life

Researchers at the Oak Ridge National Laboratory have demonstrated a solid-state high-voltage (5 V) lithium battery with an extremely long cycle life (10,000 cycles) and high Coulombic efficiency (99.98%). The solid electrolyte enables the use of high-voltage cathodes and lithium anodes with minimal side reactions. The energy stored in a battery of a given size… Read more »

ORNL study: The best use of natural gas for cars is production of electricity for EVs

What’s more efficient, using natural gas to power an ICE vehicle, or using it to generate electricity to power an EV? A well-to-wheels (WTW) analysis by a team of researchers at the Oak Ridge National Laboratory (ORNL) has found that, with a high PTW (pump-to-wheels) efficiency and the potential for high generation efficiency with NGCC… Read more »

ORNL researchers extend battery life with dual-function electrolyte

Researchers at the DOE’s Oak Ridge National Laboratory have developed a unique battery chemistry that promises to greatly extend battery life by making the electrolyte serve two functions. In a study, Pushing the Theoretical Limit of Li-CFx Batteries: A Tale of Bi-functional Electrolyte, which was published in the Journal of the American Chemical Society, ORNL… Read more »

New composite material increases current capacity to rev up EV efficiency and range

Scientists at Oak Ridge National Laboratory (ORNL) have used new techniques to create a composite that they claim increases the current capacity of copper wires, providing a new material that can be scaled for use in ultra-efficient, power-dense EV traction motors. The research is aimed at improving the performance and life of components such as… Read more »