Current electrode materials such as graphite are able to stably adsorb only a limited number of lithium ions, an inconvenient truth that restricts capacity. That’s why researchers around the world are investigating semiconductor materials such as silicon as alternative electrodes. Bulk silicon is able to accommodate enormous quantities of lithium, but the migration of the… Read more »
Search Results Found For: "Extreme E"
Mercedes presents electric delivery truck
Despite the demonstrable savings, commercial vehicles have been slower to electrify than passenger cars, and the majors have mostly left the field open for start-up firms such as Motiv Power Systems and Wrightspeed. However, as performance improves and emissions regulations tighten (some European cities are making noises about someday banning ICE trucks from city centers),… Read more »
Maxwell delivers ultracapacitor-based energy storage for Beijing subway system
Like cars, trains waste large amounts of energy during braking. Until now, however, there has been no practical way to recover this energy by using regenerative braking. Locomotives do not carry large batteries, and they are typically connected to an electrical grid that can’t handle quick bursts of energy. Ultracapacitors, which offer extremely high charge/discharge… Read more »
Changes to California ZEV rules could threaten Tesla income
As is the case with most government regulations, the California Air Resources Board’s Zero-Emission Vehicle rules are complex, and changing them tends to create winners and losers (and acronyms). CARB regulators are now considering changes to the rules that would make it harder for automakers to comply with ZEV targets by buying credits, rather than… Read more »
Tesla driver killed in crash with Autopilot engaged
The driver of a Tesla Model S was killed in a crash that occurred while the vehicle was in Autopilot mode, according to the National Highway Traffic Safety Adminstration (NHTSA), which has opened an investigation. The accident occurred on May 7 in Williston, Florida. The victim, Ohio resident Joshua Brown, is the first known fatality… Read more »
UQM, Eaton and Pi Innovo collaborate on electric drivetrain
UQM Technologies (NYSE MKT: UQM) has partnered with Eaton’s Vehicle Group and Pi Innovo to develop an electric powertrain system for the medium- and heavy-duty commercial EV market. Eaton will supply a 2-speed transmission, Pi Innovo will provide the transmission control unit, and UQM will contribute its current PowerPhase HD220/HD250 motor and inverter system. The… Read more »
Tool giant Stanley invests in 3D Li-ion battery venture
Stanley Ventures, the newly-formed venture arm of Stanley Black & Decker, has announced a strategic investment in Prieto Battery, which is working to commercialize a 3D lithium-ion battery technology that uses non-toxic materials and offers the ability to customize shapes. Prieto’s battery is designed around a porous copper structure (copper foam), conformally coated by a… Read more »
Improving aerodynamic modeling: Combining airflow dynamics with vehicle-handling models
Tuning a vehicle’s aerodynamic features is nothing new. Engineers have been using wind tunnels for decades, and more recently they’ve also employed computational fluid dynamics (CFD) software to reduce drag, minimize noise and increase stability by preventing undesired lift forces. In the expanding world of EVs, car builders are doubling down on efforts to push… Read more »
Tesla Model 3: What we know and what we don’t know
Tesla made automotive history on March 31, when it unveiled the culmination of its master plan to bring EVs to the masses. The company has committed to delivering a car with the parameters that pundits have identified as the tipping point for widespread EV sales: 200 miles of range and a price tag in the… Read more »
Cyber-security or cyber-resilience?
By Sam Abuelsamid, Senior Research Analyst – Navigant Research If you move, you will die. If you don’t move, you are already dead. There are countless variations on that theme but the gist is that life is full of risk and, sooner or later, it will get you. However, if you plan ahead and prepare,… Read more »