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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.

First Toyota unintended acceleration case headed for trial

Toyota is going to be back in the spotlight, as the first of its unintended acceleration lawsuits is headed for trial. This case covers a Los Angeles sushi shop owner, Noriko Uno. According to the what the family told The Detroit News, Uno only put about 10,000 miles on her 2006 Toyota Camry in four years. Uno was apparently afraid of high speeds, avoiding the freeway and taking a route home along LA's surface streets to avoid them.
On August 28, 2009, Uno's Camry suddenly accelerated to 100 miles per hour, eventually striking a telephone poll and a tree and killing her. The family contends that Uno attempted to step on the brakes and pull the emergency brake, neither of which brought her speed under control, while Toyota maintains that improperly installed floormats and driver error have been behind the majority of the 80 cases expected to be heard in court.
In Uno's case, The Detroit News is expecting the trial to focus on the lack of an override if the gas and brake pedals were pressed at the same time. Brake overrides were installed on Toyota's European fleet. The Uno family attorney will need to prove to the jury that it wasn't driver error that killed Noriko Uno.

2019 Detroit Auto Show Special | Autoblog Podcast #568

This week's Autoblog Podcast is a special one, recorded from Cobo Center in Detroit, site of the 2019 North American International Auto Show (NAIAS). Editor-in-Chief Greg Migliore is first joined by Senior Editor Alex Kierstein and Consumer Editor Jeremy Korzeniewski to talk about the Toyota Supra, Ford Shelby GT500 and Subaru STI S209. Then Senior Editor, Green, John Snyder and Associate Editor Joel Stocksdale join Greg to discuss the Nissan IMs Concept, new Ford Explorer and Kia Telluride, before going over the Editors' Picks for the best cars of the Detroit Auto Show. Autoblog Podcast #568 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2020 Toyota Supra 2020 Ford Mustang Shelby GT500 2019 Subaru WRX STI S209 Nissan IMs Concept 2020 Ford Explorer (including ST and Hybrid) 2020 Kia Telluride Best in Show: 2019 Detroit Auto Show Editors' Picks Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: