Search Results Found For: "raw material"

Hyundai fuel cell trucks won’t be using green hydrogen after all

Governments around the world are dedicating taxpayer money to hydrogen projects, and these are invariably presented as using green hydrogen (produced by electrolysis using renewable energy). Hydrogen detractors often warn that, once these projects are funded, green hydrogen, which isn’t yet available at any scale, will prove impractical, and boosters will quietly switch to grey… Read more »

Power electronics thermal limits and how to not exceed them

To someone who isn’t involved in power electronics design, it might seem unreal that the amount of power a component can handle depends more on how effectively waste heat can be removed from it than it does on the specific electrical ratings. Sure, the voltage and current ratings are important (especially the voltage rating), but… Read more »

2022 Lucid Air: The makers of the first 500-mile EV should be taken seriously

Created by engineers with years of EV experience, the 2022 Lucid Air is a stunning debut that confronts Tesla—and Mercedes-Benz—with a new competitor. It’s been a long time coming, but the 2022 Lucid Air has been worth the wait. The new carmaker’s all-electric luxury sedan not only competes directly with the aging Tesla Model S,… Read more »

2022 Rivian R1T: A real pickup truck makes an impressive debut

Could Rivian emerge as “the next Tesla?” On the strength of its debut truck, that’s not an unreasonable question. If you want to attract attention, keeping a company in stealth mode for several years is a good way to do it. The startup carmaker Rivian was founded a decade ago by RJ Scaringe, but it… Read more »

Book review—Power Play: Tesla, Elon Musk, and the Bet of the Century

Considering the massive media coverage of Tesla over the last decade, it may seem surprising that there aren’t more books about the company. When I first released my history of Tesla in 2014, I expected to have a short window of exclusivity before a “real” book—one with a hard cover and celebrity blurbs on the… Read more »

HIU researchers develop high-energy-density lithium metal cell with good stability

Researchers at the Helmholtz Institute Ulm (HIU) have developed a new lithium metal battery that they say offers an extremely high specific energy of 560 watt-hours per kilogram (Wh/kg) based on the total weight of the active materials. The team used a nickel-rich cathode that allows a large amount of energy to be stored, and… Read more »