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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.

Hyundai Genesis V8 HTRAC may come with performance orientation

When the second-generation Hyundai Genesis arrives in dealers, customers looking for the new all-wheel-drive variant will need to settle for the 3.8-liter V6. This is no bad thing, as the V6 is a sound engine, but what if you want that brawny, 429-horsepower, 5.0-liter V8? For now, you're stuck spinning the rear wheels.
A report from AutoGuide, though, claims that the new HTRAC all-wheel-drive system could be mated up to the Genny Sedan's optional V8 engine at a later date, as part of a new performance version. According to spokesman Miles Johnson, a performance-minded Genesis, perhaps in the same vein as the first-generation R-Spec, is being looked at by the powers that be at Hyundai and that there "may be a market demand for such a model."
Whether it'd add on to the V8's 429 ponies, or simply shore up other parts of the car while adding the AWD system remains to be seen. Of course, if we hear any more on an AWD, V8-powered, performance version of the new Genesis Sedan, we'll be sure to let you know.

Hyundai hydrogen fuel-cell SUV spied nearly naked

Back in August, Hyundai showed what seemed to be an extremely thinly veiled concept version of a hydrogen-powered crossover SUV at a special event in Seoul. Besides its showy gold paint and two-toned interior, it definitely looked like something that could roll down the production line with minimal effort. Well, judging by these spy photos, that looks like it'll be the case. Hyundai didn't even really bother to camouflage these test mules. The intricate taillight clusters carry over from the concept, as do the distinctive grille and Tesla-like extending door handles. Heck, even the wheels look to be exactly the same. And if we were to make a guess based on its proportions and size, this shares a lot with the Kia Nero. Featuring Hyundai's fourth-generation hydrogen fuel-cell technology, the FCEV (or whatever the compact crossover will eventually be called) features a 20 percent power increase over its Tucson hydrogen FCEV predecessor and is more capable in cold weather. The new FCEV will also have greater hydrogen capacity, featuring three tanks instead of two. (If you want to learn a little more about how hydrogen fuel cell vehicles work, our Honda Clarity first drive is a decent place to start.) The spy photographers didn't get a glimpse inside, but the "concept" back in August showcased a pretty production-looking cabin. If the exterior's any indication, it should look exactly like that. We've included pictures of that "concept" at the end of the gallery above so you can easily compare the "transformation." Expect the final product to be unveiled at CES in January. Related Video: Featured Gallery Hyundai FCEV Hydrogen SUV Spy Shots View 19 Photos Image Credit: KGP Photography Green Spy Photos CES Hyundai Crossover SUV Concept Cars Future Vehicles Hydrogen Cars fcev