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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.

Hyundai and Kia to update EV brake lights; our tests show how they currently may not come on

Update: This article has been updated to reflect Kia's own service campaign announcement.  Hyundai will be launching a "field service campaign to update the EV brake light logic" on its Ioniq 5 as well as the Genesis GV60, Electrified GV70 and Electrified GV80. According to Hyundai's director of communications, Michael Stewart, the change will be make to new production vehicles and as part of free-of-charge service campaign that will launch in July for approximately 56,000 vehicles already on the road.  "Regardless of the accelerator pedal input, the brake lights will now turn on when the deceleration rate exceeds approximately 0.13 G," Stewart wrote in an e-mail to Autoblog. Since this article was originally published, Kia has announced it will be performing the same update to its EV6 and Niro EV. Kia is also part of the Hyundai Group. This change would seem to be in keeping with the behavior we have experienced in the Hyundai Ioniq 6, the firm's most recently introduced EV. We go into that behavior lower in this article.  This announcement comes in the wake of owner complaints as well as a test by Consumer Reports that found that most Hyundai, Genesis and Kia electric vehicles can come to a stop without their brake lights illuminating. This occurred when using those vehicles' most aggressive "i-Pedal" function that allows for so-called "one-pedal driving" where the driver can mostly rely upon the car's regenerative braking system (which is used to replenish the battery pack) to stop the car.  We tested this for ourselves this week as we are currently testing a Genesis Electrified GV70, and I personally own a 2023 Kia Niro EV Wave. I almost exclusively drive in i-Pedal mode. News Editor Joel Stocksdale tested the Hyundai Ioniq 6 in Michigan, and again, we will address his findings after the Genesis and Kia as they are completely different. I attached an action camera to the rear of each car and conducted the same test in both: Accelerate to 40 mph and come to a stop without touching the brake and, crucially, without lifting my foot fully off the throttle. The result as you can see below with the Niro is that the brake lights do not come on until around 3 mph when I fully lifted off the throttle and bring the car to a full stop. I could not bring the car to a full stop without fully lifting off the throttle.

Hyundai Sonata sales drop so Santa Fe production will increase

Hyundai will begin production of the five-seat Santa Fe Sport at its Alabama factory this summer to take advantage of the growing popularity of crossovers in comparison to midsize sedans. The company won't release official production targets for the CUV at the plant, but an anonymous company insider told Reuters Hyundai would build around 30,000 of them at the site this year. The Kia factory in Georgia will continue to handle the majority of Santa Fe Sport production, but the Alabama assembly will help Hyundai keep up with demand. The three-row Santa Fe will still come from South Korea. The Alabama factory has a 400,000-unit annual capacity and already produces the Elantra and Sonata. Sonata sales slipped in 2015 to 213,303 deliveries from 216,936 in 2014. Meanwhile, the volume of both body styles of Santa Fe jumped to 118,134 examples in 2015 from 107,906 the previous year. According to Reuters, Hyundai could have sold more of the CUVs last year, but a limited production capacity restricted the sales. Rumors from 2015 suggested that Hyundai might have had an eye on the plant for additional crossover production in case of falling sales for the sedans built there. The Alabama factory last built the Santa Fe in August 2010. "We're thrilled to bring back another pillar of the Hyundai lineup to our production mix here at HMMA," Chris Susock, vice president of production at the plant, said in the announcement. SANTA FE SPORT PRODUCTION WILL BEGIN AT HYUNDAI MOTOR MANUFACTURING ALABAMA IN SUMMER 2016 ID: 44810 • Additional production will support growing demand in the sport utility segment • Alabama plant is the home of the Sonata and Elantra sedans • Plant is capable of assembling 400,000 units per year MONTGOMERY, Ala., January 7, 2016 –Hyundai Motor Company has announced the addition of the Santa Fe Sport to the production schedule at Hyundai Motor Manufacturing Alabama (HMMA) starting in the summer of 2016. This change will supplement existing U.S. production of the sport utility vehicle to meet the growing demand in this popular vehicle segment. "We're very happy Hyundai has been able to make this change, which will result in more great Santa Fe crossovers available to our dealers and customers," said Dave Zuchowski, president and 'CEO of Hyundai Motor America. "The new production will help us meet the growing demand for one of our most popular products," said Zuchowski.