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DC fast charging not as damaging to EV batteries as expected

As convenient as DC fast charging is, there have been lots of warnings that repeated dumping of so many electrons into an electric vehicle's battery pack in such a short time would reduce the battery's life. While everyone agrees that DC fast charging does have some effect on battery life, it may not be as bad as previously expected. Over on SimanaitisSays, Dennis Simanaitis, writes about a recent presentation by Matt Shirk of the Idaho National Laboratory (INL) called DC Fast, Wireless, And Conductive Charging Evaluation Projects (PDF) that describes an ongoing test of four 2012 Nissan Leaf EVs that are being charged in two pairs of two. One pair only recharges from 50-kW DC fast chargers, which the other two sip from 3.3-kW Level 2 chargers exclusively. Otherwise, the cars are operated pretty much the same: climate is automatically set to 72 degrees, are driven on public roads around Phoenix, AZ and have the same set of dedicated drivers is rotated through the four cars. "Degradation depends more on the miles traveled than on the nature of recharging." What's most interesting are the charts on page seven of Shirk's presentation (click the image above to enlarge), which show the energy capacity of each of the four vehicles. When they were new, the four batteries were each tested to measure their energy capacity and given a 0 capacity loss baseline. They were then tested at 10,000, 20,000, 30,000 and 40,000 miles, and at each point, the DC-only EVs had roughly the same amount of battery loss as the Level 2 test subjects. The DC cars did lose a bit more at each test, but only around a 25-percent overall loss after 40k, compared to 23 percent for the Level 2 cars. Simanaitis' takeaway is that, "INL data suggest that the amount of degradation depends more on the miles traveled than on the nature of recharging." The tests are part of the INLs' Advanced Vehicle Testing Activity work and a final report is forthcoming. These initial numbers from IPL do mesh with other research into DC fast charging, though. Mitsubishi said daily fast charging wouldn't really hurt the battery in the i-MiEV and MIT tests of a Fisker Karma battery showed just 10-percent loss over 1,500 rapid charge-discharge cycles.

Recharge Wrap-up: BMW to test autonomous cars, Korea bans sales of BMW, Nissan, Porsche models

BMW will test autonomous cars on public roads by the second half of 2017. The German automaker, with partners Mobileye and Intel, will operate a fleet of 40 self-driving vehicles using a "scalable architecture" that will be made available to other automakers. The partners plan to offer products ranging from key components to "a complete end-to-end solution" for autonomous driving. Since parting ways with Tesla, Mobileye also recently announced it would provide its technology to Lucid Motors. For BMW, it all leads up to its fully autonomous iNext model slated for introduction in 2021. See the video above, and read more in the press release from Intel. South Korea has banned the sale of certain models from BMW, Nissan, and Porsche over emissions cheating. Following an investigation, regulators determined emissions testing documents to be falsified. The country's Ministry of Environment has fined the three automakers a total of $5.9 million, and revoked the certification of 4,523 vehicles across banned 10 models. Six of the models were still on sale, while the other four have been discontinued. Read more from Automotive News Europe. China's prices for the Cadillac CT6 Plug-in are significantly higher than those announced for the US. The plug-in hybrid version of the luxury sedan recently went on sale with the two variants priced at RMB 558,800 and RMB 658,800. At the time of this writing, that's $80,420 and $94,812. Cadillac announced it would bring the CT6 Plug-In Í– which is built in China – to the US in the spring of 2017, starting at $76,090 before federal and local tax incentives. Hybrid Cars points out that China's own generous incentives could help to make it more competitive. The offering of a charger with free installation as well as an eight-year warranty on the electric powertrain should help, too. Read more at Hybrid Cars. A Connecticut court has ruled in favor of Tesla's gallery showroom in Greenwich. Last May, the Connecticut Automotive Retailers Association brought the suit to block the showroom on Greenwich Avenue, which has now been dismissed by the Connecticut Superior Court. Tesla cannot offer test drives, sell cars, or operate a Supercharger at the location, but it can sell other branded items and educate the public about its vehicles. It's possible that the issue of Tesla's direct sales model could come up again this year in Connecticut state legislature. Read more at Teslarati .

Recharge Wrap-up: Cruz defends ethanol stance, Bloomberg gets EV numbers wrong?

Republican presidential hopeful Senator Ted Cruz is defending his stance against ethanol subsidies in an opinion piece in The Des Moines Register. In the piece, Cruz says he doesn't oppose ethanol, but opposes mandates and subsidies, favoring a "free and fair energy marketplace," and an "'all of the above' policy." "We should embrace all of the energy resources with which God has blessed America: oil and gas, coal, nuclear, wind, solar, and biofuels and ethanol," says Cruz, "But Washington shouldn't be picking winners and losers." To farmers' benefit, Cruz says he would enforce antitrust laws against those who try to keep ethanol out of the marketplace, and fight the EPA's hard blend walls prohibiting higher amounts of ethanol in gasoline. Read Cruz's article at The Des Moines Register, and read more from The Washington Times.Hybrid Cars calls out Bloomberg Business in a post saying it used inaccurate data in a piece highlighting dim plug-in sales. While the Bloomberg article, titled "Plug-in Electric Autos Left Behind in Record Year," accurately points out a slower year for EVs, it claims sales slipped 17 percent in 2015. According to data from Hybrid Cars, that decline was just 2.88 percent. Hybrid Cars claims that Bloomberg lumped a number of PHEVs with regular hybrids when it calculated the faulty data. Read more about the discrepancy and the more realistic picture of EV sales at Hybrid Cars.The National Biodiesel Board has hired Sandra Franco as general counsel. The Georgetown University Law Center graduate gained experience in environmental litigation during her time as a partner at the Morgan Lewis Law Firm. "There isn't an attorney in the country who knows renewable fuels law better than Sandra Franco, and we are thrilled to have her join our team," says National Biodiesel Board CEO Joe Jobe. "Sandra is a tremendously skilled and seasoned attorney who will help us ensure that the US biodiesel industry has a strong voice and expert counsel in Washington as well as on legal and regulatory issues across the country." Read more at Crop Protection News.Nissan and Infiniti will use Microsoft Azure to power the Connect Telematics System (CTS) for the Nissan Leaf and Infiniti cars in Europe. CTS allows a remote connection to the car, enabling customers to perform a variety of functions from afar. This includes adjusting climate control and programming charging from a smartphone.