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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.

Where the 2023 GMC Sierra AT4X fits into the hierarchy of off-road trucks

The world of off-road pickups sure seems like it's getting crowded, but the reality is that half-ton trucks were always pretty capable, even with what seemed like fairly basic 4x4 packages. It wasn't until recently that manufacturers really started to carve out different off-road niches for their mainstream pickup offerings. With the introduction of the 2022 GMC Sierra 1500 AT4X (alongside its mechanical twin, the Chevy Silverado ZR2), the crowd has grown even thicker. Even we have trouble keeping up with the increased segmentation of off-road pickup trucks, so we threw together this handy guide to help you understand just where these various packages fit into the broader pickup hierarchy. Let's dive in.  Your basics If we say "Z71" or "FX4" to you, both will probably ring a bell. That's because they've been around a few days short of forever and their respective customers have grown so used to these package codes that OEMs got into the habit of just plastering them on the side of so-equipped truck beds. Anybody who sells a pickup truck offers some sort of basic off-road prep package like this one. Z71 is found on GM vehicles; FX4 is Ford's. Ram just calls it "Off Road Group," but no matter what you call them, they're all pretty similar.  Typical upgrades for this category include some additional ground clearance, a basic all-terrain tire, heavy-duty suspension upgrades and likely either a limited-slip or locking rear differential. These are pretty handy for anything beyond a rutted dirt road. On newer trucks — especially on higher trim levels — you'll probably also get some dedicated off-road drive modes.  Mid-range This is where things start to get interesting. To qualify for this category, a locking rear differential is a must. Most of the names in this segment are well-established too, though some (Nissan Titan Pro-4X, anyone?) may not necessarily be on your radar. The Toyota Tundra TRD Pro checks in here, as does the Ram Rebel, Chevy Silverado Trail Boss and GMC Sierra AT4 (no X!).  Realistically, if there's somewhere you need to go and one of these trucks won't do it, you might want to consider a helicopter. But it's 2021, and our thirst for capability is strong, so of course, there's a way to spend more of your money on this type of thing. Onward! Entry-hardcore Here we are, the home of the new 2022 GMC Sierra AT4X and Chevrolet Silverado ZR2. This is a tiny niche, otherwise occupied only by the Ford F-150 Tremor.

Recharge Wrap-up: 1M Lexus hybrids, Best Buy Geekmobile goes Prius

Cummins is developing a plug-in hybrid system for heavy trucks. Its plug-in system for Class 6 trucks (those with a gross vehicle weight between 19,000 and 26,000 pounds) is expected to improve fuel economy by 50 percent. Funded in part by a $4.5-million grant from the US Department of Energy (DOE), the system will use a battery pack and some form of range extending internal combustion engine. The system will employ various drive cycles in order to help commercial fleets save fuel based on their needs. Read more at Gas2. German automaker Borgward, LG Chem, Bosch, and software firm SAP have joined forces to form an electric mobility partnership. Borgward recently revived its brand with a new model, the BX7. Borgward has also announced that two other models, the BX5 and BX6, will be available as plug-in hybrids. SAP will provide software services, and LG Chem will supply battery technology to Borgward. Bosch will supply and help develop a number of components for Borgward cars. Read more at Inside EVs. Lexus has sold its millionth hybrid. The luxury automaker began selling hybrids with the electrified RX in 2005, and the millionth hybrid was a NX 300h sold to a customer in Milan, Italy. "This is my first Lexus," says the customer of that vehicle in a Lexus release, Aldo Pirronello. "... and I am honored to celebrate this important milestone with Lexus!" Lexus currently sells 10 hybrid models worldwide. Read more from Lexus. Best Buy's Geek Squad is switching from Volkswagen Beetle Geekmobiles to the Toyota Prius C. As part of an update to the home electronics chain's house call service, the Geeks will be driving more eco-friendly cars with a refreshed logo. More than 1,000 Prius C Geekmobiles are being deployed nationwide. With the Geek Squad answering more than 5 million house calls a year, the fuel savings from switching to a more efficient hybrid cars means reduced emissions over the 12.6 million miles they'll drive per year. Read more in the press release below. Vehicle of Choice for Geeks? Toyota Prius c An armada of agents is about to roll out in Toyota Prius c. Their mission: to help people across America get the most from their technology. Starting today, Best Buy's Geek Squad will dispatch more than 1,000 of the vehicles – fully decked out as the new Geekmobile – nationwide.