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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.

New Hyundai i30 N hot hatch makes at least 250 horsepower

The chefs at Hyundai's new N performance division are working on their first dish, a Korean take on the ever popular hot hatch. The new model will be a modified version of the i30, or Elantra GT here in the US. Hyundai Motor Europe revealed a new teaser today showing the car testing on public roads in the UK. While we could cross our fingers for this spiritual successor to the Renault 5 Turbo, the car appears to be a traditional Volkswagen GTI and Ford Focus ST competitor. The first teaser from March showed the new i30 dancing around at a snow-covered testing facility in Sweden. While the video did give us a few cool shots of the new car tossing up a bit of the white stuff, it didn't actually reveal any new details. This new video is different, showing what might be the car's horsepower and torque rating. A quick shot of a computer screen shows 257.5 PS at 6,000 rpm and 302.1 Nm, which translates to about 254 horsepower and 223 lb-ft of torque in American. It's unclear if this is power at the crank or the wheels, but it seems to be right in the middle of the pack for the segment. We're really looking forward to this new model. Hyundai (and Kia for that matter) has been on a roll the past few years. Its cars are no longer simply value buys. The Elantra Sport shows the company is capable of building a enthusiastic little all rounder that can compete with the big guys. It looks like the car is in the final stages of development, so look for a full reveal sometime this fall. Related Video:

Quality issues drive resignation of Hyundai R&D president

Hyundai released a statement Monday announcing that its research and development president, Kwon Moon-sik, and two other executives resigned from their positions, Reuters reports, to "take responsibility for a series of quality issues," according to the statement.
The resignations seem to be related to recent recalls around the globe. A few weeks back, Hyundai recalled 27,500 Genesis sedans from model years 2009 to 2012 in the US for brake fluid that doesn't prevent corrosion of the electronic hydraulic control unit. The recall recently was expanded to include 43,500 Genesis sedans in the US, but nearly 150,000 are reportedly affected including the South Korean market.
"The latest personnel change shows our firm commitment to quality management and reaffirms our will to continuously improve R&D competitiveness," says Hyundai.