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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.

This Japanese ad for the Toyota Prius Plug In is beyond confusing

We'll admit we don't understand all of this strange little ad for the Toyota Prius Plug In (our Japanese skills are not what they once were) but that just makes it all the more fascinating. The takeaway point is that a world full of PHEV Priuses will be astonishingly colorful at time and exciting, with food being delivered by a neck plug. Or something like that. We recommend clicking below and just watching the 60-second spot (and the short making-of video) but if you'd rather read here's what we have figured out: There's some airline-pilot type guy who is visited by who he calls his sister. The voiceover says she's some kind of saleswoman, and she begins to talk up the plug-in Prius alongside the J-Pop group AKB48 Team 8, telling the crowd – including a man in a big, round bird mask – how easy it is to plug in. The old man watching the J-Pop girls tells the woman next to him, "I have their CD." Then we see the original duo back home and the guy says he's hungry before plugging in a blue energy wire. The same wire that then starts charging a Prius. That may not really clarify anything, but there you have it. Watch for yourself below. At the very least, we won't confuse this ad for one from another automaker. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Watch this dude paint his Toyota pickup like Eddie Van Halen's guitar

Eddie van Halen is one of the greatest rock musicians around, and his Eruption guitar solo alone puts him in the pantheon with the best of the best. Artist Ryan Humphrey was looking for a design to repaint his ratty Toyota pickup, and as a Van Halen super fan, he set on the classic scheme of Eddie's guitar for the look. The paint job is made up of a crisscrossing geometric pattern of black and white stripes with a red body. The eye-catching, rock-inspired design should give Humphrey no problems finding his pickup in a parking lot. In a video hosted by Plutonium Paint, he shows you how to get the look using the company's product. Even if you're not interested in watching a guy paint his old truck, the video is still enjoyable just for the chance to listen to some Van Halen tunes.