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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.

Nissan to take over for Renault in Formula E

Formula E has generated a lot of news lately, even in the off-season, as major automakers continue to either join the series or express interest in participating. The inclusion of a number of European rivals makes the series particularly interesting. One thing missing from the lineup is a Japanese automaker. That will change, though, as Motorsport reports that Nissan will be taking over its Alliance partner Renault's spot on the starting grid. It's not confirmed when the switch will happen, but with the Renault e.dams Z.E. 17 (seen in testing above) already having been unveiled for next season, it's likely the switch will come in for the 2018/19 season when the series moves away from the practice of swapping cars mid-race. Renault has been a successful part of Formula E from the very beginning, providing (with partner Spark) the cars each team used in the first season, and scoring the series' first Team Championship in 2015, and then again in 2016 and 2017. Nissan, though, has the globally popular Leaf EV, and has been eyeing an entry into Formula E for some time now. Joining the series will not only boost the visibility of Nissan's electrification strategy, it will do the same for its Nismo arm as well (and, as we've already learned, there could be a Leaf Nismo offered in the future). The change would also free up resources for Renault to focus on its F1 efforts. As Motorsport also reports, Formula E CEO Alejandro Agag has said of the Japanese brands Nissan, Honda and Toyota, that "one of those three, maybe two, will end up" in the electric racing series, without elaborating further. Nissan isn't expected to confirm its Formula E entry soon, but it could happen at the Geneva Motor Show next year. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. News Source: MotorsportImage Credit: Formula E Green Motorsports Nissan Renault Green Culture Electric Racing Vehicles Formula E nismo fia formula e championship

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.