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Solid-state batteries: Why Toyota's plans could be a game-changer for EVs

Word out of Japan today is that Toyota is working on launching a new solid-state battery for electric vehicles that will put it solidly in the EV game by 2022. Which leads to a simple question: What is a solid-state battery, and why does it matter? Back in February, John Goodenough observed, "Cost, safety, energy density, rates of charge and discharge and cycle life are critical for battery-driven cars to be more widely adopted." And risking a bad pun on his surname, he seemed to be implying that all of those characteristics weren't currently good enough in autos using lithium-ion batteries. This comment is relevant because Goodenough, professor at the Cockrell School of Engineering at the University of Texas at Austin - it so happens, he turns 95 today - is the co-inventor of the lithium-ion battery, the type of battery that is pretty much the mainstay of current electric vehicles. And he and a research fellow at U of T were announcing they'd developed a solid-state battery, one that has improved energy density (which means a car so equipped can drive further) and can be recharged more quickly and more often (a.k.a., "long cycle life") than a lithium-ion battery. (Did you ever notice that with time your iPhone keeps less of a charge than it did back when it was shiny and new? That's because it has a limited cycle life. Which is one thing when you're talking about a phone. And something else entirely when it involves a whole car.) What's more, there is reduced mass for a solid-state battery. And there isn't the same safety concern that exists with li-ion batteries vis-a- vis conflagration (which is why at airplane boarding gates they say they'll check your carryon as long as you remove all lithium-ion batteries). Lithium-ion batteries may be far more advanced than the lead-acid batteries that are under the hood of essentially every car that wasn't built in Fremont, Calif., but as is the case with those heavy black rectangles, li-ion batteries contain a liquid. In the lithium-ion battery, the liquid, the electrolyte, moves the lithium ions from the negative to the positive side (anode to cathode) of the battery. In a solid-state design, there is no liquid sloshing around, which also means that there's no liquid that would freeze at low operating temperatures. What Toyota is using for its solid-state battery is still unknown, as is the case for the solid-state batteries that Hyundai is reportedly working on for its EVs.

Recharge Wrap-up: Mercedes-Benz B-Class Electric Drive goes on sale in Europe, Spain gets Nissan Leaf taxis

The new Mercedes-Benz B-Class Electric Drive goes on sale in Europe on November 3, with deliveries starting before the end of the year. Developed with the help of Tesla, the new electric B-Class offers more than 132 kilowatts (177 horsepower) and 250 pound-feet of torque. It features Economy Plus, Economy and Sport driving modes. An optional radar support system uses the collision prevention assist sensors to help make smarter decisions about when and how to use the regenerative braking. The B-Class Electric Drive also offers an optional Range Plus button, which can unlock more battery capacity when charging for the occasional longer drive. Learn more in the press release below. Racing returns to the streets of Miami for the first time in more than a decade for the Formula E Miami ePrix on March 14, 2015. Formula E has revealed the track layout, which takes the race around the Miami Heat's home court, American Airlines Arena, along the Biscayne Bay. "This event will help to make Miami more of a sports city," says Mayor Thomas Regalado. "In addition, we will show the younger generations that you may have motor racing without noise or pollution." Read more about the event at the Formula E website and see the track layout in detail here. Hyundai has delivered the first ix35 Fuel Cell vehicles to customers in the UK, including clean energy company ITM Power. ITM is responsible for three of the hydrogen refueling stations being built around the EU as part of the Hydrogen For Innovative Vehicles project - the same project that helped bring the Hyundai ix35 (also known as the Tucson) Fuel Cell to Europe. ITM's 700-bar hydrogen stations will be built in London by Spring 2015, each with its own electrolyzer system on site. In the meantime, ITM will use the ix35 for commutes between London and Sheffield, refueling at a site that uses wind-generated electricity from an on-site turbine to power the electrolyzer to make the hydrogen. Learn more in the press release below. Demand for aluminum is expected to climb as China builds more electric cars. Aluminum supplier Novelis says demand will likely increase 30 percent annually for the next 10 years in China, Japan and Korea, and possibly more depending on how China's plan to increase EV use and decrease air pollution shakes out. Read more at Bloomberg. Barcelona and Madrid have received their first all-electric taxis in the form of Nissan Leaf EVs.

2020 Kia Soul vs. subcompact crossovers: How they compare on paper

At 10 years old, the 2020 Kia Soul has entered its third, and potentially best, generation yet. To get here, it fought off other boxy hatchbacks such as the Scion xB and Nissan Cube. But now it faces all new competition: subcompact crossovers. They offer similar sizes, prices and flexibility as the Soul, but with a veneer of ruggedness. But the Soul is ready with its own rugged trim, the X-Line, plus the return of its powerful turbocharged variant. To see how the Soul stacks up to the fresh competition, we've compiled vital stats on all the tall hatches. Considering the prodigious size of the subcompact crossover segment, we've limited our selection to a few options that are similarly priced and sized to the Soul, and that offer a bit of funky styling. They include the Toyota C-HR, Nissan Kicks, Hyundai Kona and Honda HR-V. There are of course many more options, and you can create your own comparisons using our Compare Cars feature. (You can also check out our Mitsubishi Eclipse Cross comparison that includes a few larger choices). In the meantime, though, check out all the numbers on our selected vehicles in the chart below, followed by analysis after. Performance, fuel economy and drivetrains The crossover segment is diverse when it comes to powertrains, with all different displacements, induction systems and drive wheels. A surprising number of these supposedly rugged and off-road-oriented vehicles (at least more than normal cars) are front-drive only. These include the Nissan Kicks, Toyota C-HR and Kia Soul. But the Kona and HR-V offer all-wheel drive, with the Hyundai offering it on both engine options. Speaking of engine options, only the Kia and Hyundai have two possibilities, either a base 2.0-liter naturally aspirated engine, or a turbocharged 1.6-liter engine. The base engines have identical outputs of 147 horsepower and 132 pound-feet of torque, but the turbo engines differ. The Soul has 201 horsepower to the Hyundai's 175, but both make the same 195 pound-feet of torque. The Kicks, C-HR and HR-V all offer just one engine option, and they're all naturally aspirated. The Nissan's engine is the smallest and least powerful: a 1.6-liter engine making 125 horsepower and 115 pound-feet of torque. The HR-V is next with a 1.8-liter engine making 141 horsepower and 127 pound-feet of torque. The C-HR rounds out the trio at 144 horsepower and 139 pound-feet of torque from a 2.0-liter engine.