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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.

Toyota holds onto crown of World's Largest Automaker

Although there were hints and allegations that the Volkswagen Group might have taken the global sales crown for 2014, the final tally puts Toyota at the top with 10.23 million sales in 2014. We should really say it keeps Toyota at the top, since that makes three years in a row the Japanese company has been No. 1. Volkswagen Group came in second with 10.14 million units sold, General Motors in third with 9.92 million units sold. This the first time for both Toyota and Volkswagen to pass 10 million sales in a single year. Toyota, including its Hino and Daihatsu divisions, did it with a three-percent increase in company-wide sales on the back of strong demand in Japan and the US. Its strength in developed markets might be the reason it loses the title this year, though; Toyota forecasts a two-percent gain in sales outside of Japan, but a nine-percent drop in its home market because of a new consumption tax that encouraged buyers to purchase before the end of last year. On top of that, turmoil in Southeast Asian economies like Thailand and Indonesia depressed sales in 2014 and they're facing more headwinds. The company envisions 10.15 million sales in 2015. Volkswagen, on the other hand, "has a jet engine strapped to its back called 'China,'" where Toyota is out-of-sorts. Volkswagen Group sales fell 2.9 percent in the US last year, while Toyota gained 6.2 percent here. But Volkswagen roped in 3.7 million sales in China, a 12-percent increase. Toyota enjoyed a huge bump of 12.5 percent in China, but that only got it to 1.03 million units, missing its yearly target and leading to trouble with its Chinese dealers over unsold inventory. With Toyota on the Chinese sidelines while Volkswagen guns for No. 1 status and pledges more production capacity in China – sales there are expected to top 25 million units this year – it looks like this could be the year the VW Group takes over the lead. That would be three years ahead of its original target of 2018. An analyst in Japan said Toyota is more focused on "keeping profitability than chasing numbers" – profitability is an issue for VW right now – so Toyota might not be back at the top "for [the] coming years." News Source: Bloomberg, Automotive News - sub. req. Earnings/Financials GM Toyota Volkswagen Car Buying Daihatsu sales volkswagen group

Toyota delays Mexico plant as it plans U.S. plant with Mazda

TOKYO — Toyota will push back the start of operations at its scheduled new plant in Mexico, to the first half of 2020 from the initial plan of 2019, the company said on Thursday. Japan's top automaker had initially planned to start building the Corolla sedan at the $1 billion Guanajuato plant but said last week it would switch production to a new U.S. factory to be built with Mazda. Toyota said the delay was necessary to adjust its supply chain in Mexico to produce the Tacoma pickup instead of the Corolla compact car. That factory could also build sport utility vehicles, a Toyota spokesman in Mexico said last week. "With the production model change to the Tacoma pickup, the start of production will consequently be in the first half of 2020," a Toyota spokeswoman said. "However, we will make our utmost effort to advance the timing in order to minimize the impact to suppliers and the local community." Until the scheduled start of the joint venture plant with Mazda in 2021, Toyota will supply the Corollas that were initially slated to be built in Mexico from its factories in Mississippi and Japan, the company said.Related: Mazda-Toyota partnership has us dreaming of a rotary hybrid Reporting by Makiko YamazakiRelated Video: