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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.

Recharge Wrap-up: BMW plans for retired batteries; automakers support dual-standard chargers

Toyota will test hybrids with silicon-carbide (SiC) power semiconductors. In Japan, Toyota has put the SiC power semiconductors into the power control units of a Camry Hybrid prototype and a fuel cell bus for a year-long test. Research suggests the SiC units will decrease electrical losses while managing power supply, thus improving overall powertrain efficiency. Current power semiconductors account for about 20 percent of electrical losses, and success with these tests could mean more efficient hybrids on the roads in the future. Read more at Hybrid Cars. Automakers from CCS and CHAdeMO camps are supporting dual-standard charging station networks. https://www.autoblog.com/bmw/, Volkswagen (CCS camp) and ChargePoint announced plans to build "express charging corridors" by installing about 100 DC fast chargers, many of which will support both types of charging. Kansas City Power & Light is partnering with Nissan (CHAdeMO camp) and ChargePoint to install DC chargers that "will charge any model of electric vehicle on the market." This leads the folks at Green Car Reports to look into whether this ends the looming standard war between automakers in the US. Read more at Green Car Reports. BMW, Bosch and utility company Vattenfall are making plans for a second life for retired BMW i3 batteries. The Second Life Batteries Alliance project will recycle the old lithium ion battery packs - which can still hold a charge - in off-grid storage and grid-stabilization applications, beginning with a grid storage system in Hamburg, Germany. Bosch has created a battery management algorithm to extend the life of the batteries and make sure they don't cause harm to Vattenfall's facilities. Read more at Transport Evolved.

Toyota's fuel pump recall now covers nearly 6 million vehicles globally

Toyota expanded a worldwide fuel pump recall to a total of 5.84 million vehicles for a defect that could cause the part to fail. In the United States, the total number of vehicles involved in this safety recall is now approximately 3.34 million vehicles. On January 13, 2020, Toyota announced a safety recall for 695,541 Lexus and Toyota models. In March of 2020, the Japanese automaker added an additional 1.1 million vehicles to the previous recall. Now, the largest Japanese automaker adds another 1.52 million U.S. vehicles to the recall that was first announced in January and covers numerous models built between July 2017 through September. Here is a full list of vehicles that are now included in the expanded recall: 2013-2015 Model Year Lexus LS 460; 2013-2015 Model Year Lexus GS 350; 2014 Model Year Toyota FJ Cruiser, Lexus IS-F; 2014-2015 Model Year Toyota 4Runner, Land Cruiser; Lexus GX 460, IS 350, LX 570; 2015 Model Year Lexus NX 200t, RC 350; 2017 Model Year Lexus IS 200t, RC 200t GS 200t; 2017-2019 Model Year Toyota Highlander; Lexus GS 350; 2017-2020 Model Year Toyota Sienna and Lexus RX 350 2018-2019 Model Year Toyota 4Runner, Land Cruiser; Lexus GS 300, GX 460, IS 300, IS 350, LS 500h, LX 570, NX 300, RC 300, RC 350; 2018-2020 Toyota Avalon, Camry, Corolla, Sequoia, Tacoma, Tundra; Lexus ES 350, LC 500, LC 500h, LS 500, RX 350L 2019 Model Year Toyota Corolla Hatchback and Lexus UX 200 2019-2020 Model Year Toyota RAV4 Toyota said the vehicles that have a fuel pump that may stop operating and could result in a vehicle stall, and the vehicle may be unable to be restarted. Dealers will replace the fuel pump with an improved version. Toyota's customer support is available to owners with affected vehicles by calling the Toyota Brand Experience Center at 1 800 331-4331. Related Video: Recalls Lexus Toyota Truck Coupe Crossover SUV Sedan