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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.

Earthquake causes most of Toyota's Japan operations to shut down

Toyota is idling a large portion of its Japanese assembly plants as a result of the devastating earthquake in Hokkaido, Japan. The earthquake had such a big effect on the carmaker's supply chain that a number of its plants will have to be shut down for an undisclosed period, starting on Saturday. The 6.7 magnitude earthquake occurred early on September 6 th, resulting in more than dozen casualties and hundreds of injuries, cutting power to the entire island; the powerplant supplying half of the island's power was located so close to the earthquake's epicenter that it shut down automatically, bringing down the rest of the island's grid with it. Tens of people were also reported missing, as reported by Reuters. The affected factories are the Kyushu, Tahara and Toyota Auto Body plants, according to Automotive News, and they manufacture vehicles such as different Lexus models and the Toyota Land Cruiser. Some of the models produced in these factories are exported to the United States, but a Toyota spokesman said that North American operations are not likely to be significantly affected by the plant closures. As well as the automobile assembly plants in Hokkaido, Toyota also has a facility there that manufactures transmissions and transfer cases. As it was also without power, Toyota could not confirm when the plant would be back online. Out of Hokkaido's 2.95 million households, 1.54 million had regained power by Friday afternoon. All in all, Toyota has 18 manufacturing facilities in Japan; spokeswoman Akito Kita said that from Monday on, the shutdown will affect all Japanese Toyota and Lexus lines — not including two Daihatsu facilities that are also used for Toyota products. The shutdowns come directly after Toyota also announced a recall for Japanese-built hybrid models, mainly Prius. Related Video:

Watch this video diary of a 900-hp Toyota Supra build

If you've ever looked at a car with nearly 1,000 horsepower and wondered why anyone needs that amount of thrust, you may want to take a look at the video below. In it, one gentleman details his descent into Toyota Supra madness, starting with a pristine factory example and stumbling down the rabbit hole of modification. What makes this particular clip interesting is just how honest the owner is as he explains the evolution of his car. He doesn't just prattle off a list of parts like he's reading the menu at an IHOP.
Instead, he painstakingly pulls us through the car's growth, detailing each iteration and what pushed him to the next stage of the build every time. From this point of view, it looks less like someone walked into a shop and lit a massive stack of $100 bills on fire and more like a quasi-logical progression of events. Or at least it does to me. You can check out the build in the video below, complete with plenty of Fast and the Furious references and racing. Win, win, win.