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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.

Lexus reportedly working on two different successors to the LFA

The successor to the Lexus LFA is beginning to take shape — in unofficial rumors, at least. The firm's next supercar will reportedly make its debut in the coming years with a V8 under the hood, and it will be followed by a battery-electric model due out at the turn of the decade. Citing anonymous inside sources, Japanese magazine Best Car wrote that the long-awaited car that will take the torch from the limited-edition LFA will land in showrooms in 2025. As we've previously reported, it will be powered by a gasoline-electric hybrid powertrain built around a mysterious 4.0-liter V8 engine fitted with two turbochargers. The publication adds that the coupe, whose name hasn't been confirmed, will be launched as a regular-production model and that it will be built on a version of Toyota's TNGA-L platform. This is the same architecture found under the LC and the LS, among models, and using these foundations should allow Lexus to keep the car's cost in check. Engineers could peg the hybrid system's total output at around 700 horsepower, and Best Car reports that the car's front end will borrow styling cues from the Electrified Sport concept (pictured) introduced in December 2021. If the report is accurate, sales will start in 2025. Speaking of which, the Electrified Sport will make its debut with a battery-electric powertrain in 2030 at the earliest. Its design will evolve over the next eight-plus years; it sounds like what we saw in December 2021 more accurately previewed the hybrid supercar than the electric one. It could hit 60 mph from a stop in under 2 seconds, and it could offer a maximum driving range of over 430 miles. Interestingly, the same report points out that the Electrified Sport might use solid-state batteries. That technology's not ready, but Lexus has plenty of time to fine-tune it. Toyota GR GT3 Concept View 8 Photos On the Toyota side of the family tree, the GR GT3 concept unveiled in January 2022 is allegedly on its way to production (in one form or another) as well. It will initially spawn a race car built to GT3 specifications, as its name implies, and it will benefit from the lessons that engineers learned while designing a road-going, Le Mans-inspired hypercar that Toyota consigned to the automotive attic in August 2021. Whether the GR GT3 will be related to the LFA's successor is up in the air, though it doesn't take a significant stretch of the imagination to speculate that some parts will be shared.

Race Recap: 2014 24 Hours of Le Mans defines 'endurance'

Commenting on the rush of events that rocked beginning and end of the 24 Hours of Le Mans, Paul Truswell of Radio Le Mans said "the race is about the ability to endure, not just the ability of drivers to do what they do for a long time." The entire race machine, all the way down to the pit boards and radios, has to survive the stress and abuse of the entire day. This was the race to prove those words.
There were two Toyotas, two Porsches and three Audis, five of the seven led the race at some point, six of the seven ran in the top three. Toyota will be hugely disappointed that it didn't win when its car and drivers were so, so strong, but they gave Audi the kind of scare we haven't seen since the best of Peugeot's days, and Toyota did a better job of it even in the loss. Porsche blew away everyone's expectations, falling 3.5 hours short of a fairy tale ending that would have made Disney cry.
But Le Mans doesn't really do fairy tales. Well, not that fairy tale. Audi's Twitter handle during the event was #welcomechallenges. As usual, Le Mans answered for the entire field.