Posts Tagged: Oak Ridge National Laboratory

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 »

The emerging “non-utilities”—EVs are helping new players in the energy marketplace.

Gordon Feller serves on the boards of several non-profit organizations focused on the future of greener mobility. He formerly served as President Obama’s appointee to a US Federal Commission established to assess emerging energy-focused digital technologies. Dramatic pricing changes, shifting cost structures, new demand curves and technologies that enable efficient decentralization are driving a dramatic… Read more »

PARC uses CoEx printing technology to fabricate high-energy, high-power battery electrodes

PARC, a Xerox company, is collaborating with Oak Ridge National Laboratory (ORNL) and Ford in a DOE-funded project that will use PARC’s CoEx printing technology to fabricate higher energy and higher power electrodes for EV batteries. The goal of the project is to demonstrate pilot-scale pouch cells with a 20% improvement in gravimetric energy density… 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 »

Real-time images of lithium dendrite structures could lead to better batteries

Scientists at the DOE’s Oak Ridge National Laboratory have captured the first real-time nanoscale images of lithium dendrite structures in lithium-ion batteries. The ORNL team is confident that its research, published in Nano Letters, will be of great benefit to scientists who are experimenting with different ways to tackle the dendrite problem. Dendrites form when… Read more »

Researchers develop dendrite-free lithium films, an important step toward lithium metal anodes

There’s a lot of interest in using lithium metal as an anode material, because of its theoretical high capacity of 3,860 mAh g−1 (around ten times that of the graphite anodes used in typical Li-ion batteries). However, it doesn’t measure up in terms of cycle life and safety requirements, and one reason is the formation of… 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 »

New study: Most drivers are better off with an under-100-mile EV range

Conventional EV wisdom is that it’s all about range. Most of the mainstream press seems to assume that EVs won’t be taken seriously until they have ranges comparable to legacy vehicles. Automakers are in “a race” to produce a 200-mile EV.  However, a new study suggests that, as long as battery costs remain above $100/kWh,… 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 »