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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.

2018 Hyundai Sonata First Drive | An infield home run

Baseball's boring. At least that's what anyone thinks who doesn't understand that it's an exciting game of inches. To wit, the same can be said for the crowded midsize family sedan segment. Unlike the all-new Toyota Camry and the upcoming 10th-generation Honda Accord, the Sonata is a refresh of the existing model. Hyundai is still in it, but can it improve sales in a segment being eaten alive by crossovers? At first glance, the most significant change to the new-look Sonata is the front end with a new cascading grille, which is longer and more contoured. This grille will make its way across all models as a major part of Hyundai's new corporate design language. Hyundai claims to be the only car company that manufactures its own steel, and this cascading design is inspired by the flow of molten steel as it's poured. With an elongated front end, new character lines on the hood and front bumper, and slimmer LED headlights, revisions give the entire car a more aggressive appearance and sportier stance. At the rear, moving the license plate from the trunk to the bumper was a good choice. It simplifies the back end, better showcasing the sheetmetal and allowing the trunk lid and redesigned taillights to take center stage. Turbo models will get a twin exhaust, increasing the sporty feel even more. Inside the Sonata, the facelifted center stack features a seven-inch touchscreen monitor (eight-inch on the Limited edition. The audio controls are more streamlined to give the entire unit a less bulky appearance, and a sporty, leather-wrapped three-spoke steering wheel complements other goodies such as leather seats. The biggest change in trim levels comes with the addition of the SEL model, just above the SE and Eco models, which includes even more features for about $1,600. Gone for 2018 is the six-speed transmission from the turbocharged 2.0-liter models, replaced by the all-new eight-speed that adds ratio range at both top and bottom. The power is unchanged at 245 horsepower, but remember that the BMW 330i's 2.0-liter turbo makes 248 hp, so Hyundai's engine is in the ballpark with those from established luxury brands. Even with that power, don't count on racy launches, as there's plenty of lag. Once the turbo is spooled up, the engine has moxie. We drove two trim levels, the Sport and the Limited 2.0T. The ride is plenty comfortable on the refined chassis and updated rear suspension, which includes an increase in trailing-arm thickness to stiffen the suspension.

201-horsepower Hyundai Ioniq Electric track car is awesome

While we've seen plenty of high-performance electric cars, such as Rimac's supercars and Tesla's powerful sedans and crossovers, we haven't seen many modified electric cars. Or at least electric cars modified for more performance in the traditional sense of the word for more speed and handling prowess. Engineers at Hyundai are finally giving us a peak at the future of tuning and hot rodding with their upgraded 2017 Hyundai Ioniq Electric that's competing in the Optima Ultimate Street Car series this year. It's visually much more striking than the average Ioniq thanks in part to a bold color scheme, but also bolt-on fender flares and Volk TE37SL wheels wrapped in fat 275-mm width tires. More important, there are major changes under the skin. The standard Ioniq Electric's 118-horsepower, 218 pound-foot motor has been swapped out for the new Kona Electric's motor, which makes 201 horsepower and 291 pound-feet of torque. Though that's less power than the Veloster N that's also been racing this year, it's more torque than the same hot hatch. Power still goes to the front wheels, but now there's a limited-slip differential up front to prevent the inside wheel roasting its tire in corners. Interestingly, the only suspension change mentioned is firmer lowering springs, so presumably it still uses the torsion-beam rear suspension layout of the regular Ioniq Electric. Beefy six-piston Wilwood brakes up front and four-piston units in the rear help the car come to a stop much more quickly. The cooling systems for the electronics and battery pack have been upgraded, too. It all sounds like a blast to drive. As to why Hyundai built this, the company is using it for research and development purposes. Perhaps this will aid in developing an electric N model. It's also looking to build on its 2017 season when Hyundai was the only brand with a car in the Ultimate Street Car series GTE electric vehicle class. The modifications will certainly be useful this season, since a competitor has been to a few events with a Tesla Model X P100D. The overall standings show that the hopped-up Hyundai is second in total points, which will likely narrow after the Hyundai heads to its third event at Autoclub Speedway this weekend. The two cars have not been at the same events this year, but both appear to qualify for the final invitational event that takes place in Las Vegas following the SEMA show.