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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.

2021 Jeep Grand Cherokee L vs Big Three-Row Crossovers | Spec comparison

The three-row 2021 Jeep Grand Cherokee L is here, entering an ever-growing segment of big crossovers that Jeep has ignored since the Commander of the late 2000s. Of course, the Dodge Durango has basically been a three-row version of the current Grand Cherokee with Dodge styling and a different interior, so it's not like The Corporate Entity Formerly Known as Chrysler has been without a contender in the segment. Jeep is a stronger brand than Dodge, however, and the three-row midsize segment is stronger than those with two rows (there's a vast sales difference between the Chevrolet Traverse and Blazer, as well as the Honda Pilot and Passport). In other words, the Grand Cherokee L could be a very big deal. It is also, quite literally, a very big deal. As you're about to see, it is now the largest three-row crossover, besting the length, wheelbase and height of even the gargantuan Traverse. There's more to the story than that, however, so we put together the below comparison chart to show you how the new Grand Cherokee L lines up on paper versus the biggest three-row crossovers. That includes the 2021 Ford Explorer, 2021 Kia Telluride, 2021 Hyundai Palisade and 2022 Chevrolet Traverse. This group also represents some of the strongest entries in the segment as well as those we feel are most likely to be considered alongside the big Jeep. To that end, we also included the 2021 Lincoln Aviator in the chart since its base price is actually less than what we anticipate the luxurious, range-topping Grand Cherokee L Overland and Summit trim levels to start.  Engines and drivetrains Note the differences in curb weight here. The Grand Cherokee L has the highest base curb weight of the group apart from the high-lux Aviator, yet its 3.6-liter V6 has the least amount of power and torque. Therefore, it'll be surprising if it's not the slowest in the group. There's of course the Hemi V8 available on the top Overland and Summit trim levels, but again, a hefty curb weight works against it. At 5,330 pounds, the lightest V8-powered JGCL weighs 600 pounds more than V6-power Explorer Platinum and ST models. On the other hand, nothing can touch the Hemi Jeep's towing capacity, and only the 400-hp Aviator betters the Jeep's base V6. Its 6,200-pound towing capacity greatly outdoes the 5,000-pound limits of not only the Telluride, Palisade and Traverse, but most others in the segment as well.

All new Hyundai Elantra revealed in Korea

After thoroughly teasing the next-generation Elantra, Hyundai is finally unveiling its latest sedan for the South Korean market (where it's called the "Avante"). While the names might be different, expect the revised model to look just like this for the North American debut at the Los Angeles Auto Show in November. Although, the powertrain range might be tweaked when crossing the Pacific. Hyundai is reworking the swoopy Fluidic Sculpture design language into a sleeker, simpler shape for the latest Elantra, and the company calls the new direction "Modern Premium." Up front, there's a big hexagonal grill to grab attention, and it's matched with squinting headlights on each side. The roof now simply flows back elegantly to the trunk, and the sides are left largely unadorned beyond an understated crease along the shoulders. At the rear, narrowing taillights stretch horizontally across the trunk. Also, while the upgraded styling is meant to make the Elantra look low and wide, the dimensions grow less than an inch in length and width. Beneath the upgraded design is a revised platform that's made of 53 percent advanced high strength steel, versus 32 percent before. The result is a stiffer frame that Hyundai claims leads to better crash test results and lower NVH. Drivers get added security from a safety suite that includes autonomous emergency braking, high beam assist, blind spot detection, and rear cross traffic alert. Hyundai is clear that powertrains can vary with region, but South Koreans get three choices in the Avante. A 1.6-liter gasoline-fueled four-cylinder offers 130 horsepower and 119 pound-feet of torque, and a 1.6-liter diesel makes 134 hp and 221 lb-ft. There's also a 2.0-liter petrol mill running on the Atkinson cycle that produces 147 hp and 132 lb-ft. Rumors suggest North America might get the turbocharged 1.6-liter from the latest Tucson with 175 hp and 196 lb-ft. Hyundai Motor Holds World Premiere of All-new Elantra in Korea 09 September, 2015 • Hyundai Motor's best-selling model evolves with innovative design • Award-winning compact sedan inspires driver confidence with enhanced performance and stable handling • Class-leading convenience and safety features are tailored to customer needs September 9, 2015 – Hyundai Motor Company, South Korea's largest automaker, today unveiled the 'All-new Elantra (named Avante in Korea)', a sophisticated evolution of the brand's long-established compact sedan.