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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.

2017 Hyundai Elantra arrives with a host of upgrades [w/video]

We got a great idea of the 2017 Hyundai Elantra's styling when the company revealed it for the South Korean market a few months ago. Now, the US-spec car arrives at the LA Auto Show. The shape is just as expected, but Hyundai has new powertrains and tech in store, too. Hyundai designers simplified the Elantra's look for the latest generation. The sedan's nose now flows down to a hexagonal grille with horizontal slats, and squinting headlights flank it on each side with vertical LED running lights underneath. The new lower air dam leads air to wheel curtains that help lower wind resistance. The profile lacks the heavy sculpting of the current model, but a subtle character line sweeps up across the side for some visual interest. Narrow taillights stretch horizontally across the trunk. Even with the aesthetic changes, the overall size only expands slightly: length grows 0.8 inches to 179.9 inches, width increases an inch to 70.9 inches, and the wheelbase remains 106.3 inches. The interior features a more horizontal layout with metallic trim that runs across the dashboard. There are two infotainment choices beyond the base stereo. A seven-inch Display Audio system includes a rearview camera, and an eight-inch setup also has navigation. Both support Android Auto. Most trims of the 2017 Elantra feature a 2.0-liter four-cylinder that runs on the Atkinson cycle, and it produces an estimated 147 horsepower and 132 pound-feet of torque. Hyundai expects fuel economy ratings of 29 miles per gallon city, 38 mpg highway, and 33 mpg combined with the six-speed automatic. The company also offers a six-speed manual only on the SE trim. The Elantra Eco arrives in spring 2016 with a 1.4-liter turbocharged four cylinder with 128 hp and 156 lb-ft and a seven-speed dual-clutch gearbox. The brand estimates 35 mpg combined with that combo. A much stronger platform is beneath the upgraded design. The Elantra now uses 53 percent advanced high strength steel compared to 21 percent before, and the change allows torsional rigidity to increase 29.5 percent. The engineers also work to improve NVH wherever possible with improvements like a hood insulator, thicker glass, sound-absorbing material, and plastic and rubber bushings for the front subframe. Drivers can order a plethora of driver assistance and safety tech for the 2017 Elantra including Automatic Emergency Braking, Lane Keep Assist, adaptive cruise control and Blind Spot Detection.

Ioniq Unlimited is Hyundai's way to get Millennials to subscribe to a car

Let's state at the outset that a lot of the questions you're going to have about the new Ioniq Unlimited vehicle subscription program from Hyundai will not be answered in this post. This isn't because we didn't ask - we did - but because Hyundai is holding on to those details until some time after the service starts, which will be some time after the first of the year. If we had to guess, we'll get the information we seek at CES in early January. But, hey, we're getting ahead of ourselves. What is Ioniq Unlimited, anyway? It's a subscription service for the all-electric version of the Ioniq. Available only in California (during the pilot program, anyway), Ioniq Unlimited is an Internet-based way to get yourself a 2017 Ionic Electric. There are no negotiations, just a single price that you pay every month. That price includes all sorts of things: registration and Doc fees, recharging fees, unlimited mileage, and scheduled maintenance. Oh, and there's no down payment. Hyundai vice president of corporate and product planning, Mike O'Brien, told AutoblogGreen that the idea here is to appeal to millennials, who like to keep their transactions simple. Sign once, pay once, be done. Hyundai is trying to, "make car ownership as easy as owning a phone," O'Brien said. Maybe that's why the subscription terms are 24 and 36 months. O'Brien would not say if people could cancel early. As for the price, all he would say is that it will be, "very competitive." Yeah, we want more information, too. Whatever they cost, the subscriptions will be good for Hyundai, too, since the cars will be treated like leased vehicles (and thus owned by Hyundai's captive leasing program) and totally counted in the company's CAFE numbers. We'll have more details, well, whenever Hyundai feels like it's time to share. For more information on Vehicle Subscription Services, check out the Complete Guide. Related Video: