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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.

Carlos Ghosn returns as president of ACEA

The European Automobile Manufacturers' Association (abbreviated ACEA in French) is an industry group representing all the biggest automakers in Europe, representing their common interests on the world stage. And as such it needs a leader, figurehead and mouthpiece to serve as its president, and for the second time the association's board of directors has chosen Carlos Ghosn.
Now if you're recognizing Ghosn as the CEO of Nissan and wondering what that has to do with European cars, it's not because Nissan manufactures much in Europe. In fact, it only operates has a handful of locations in Europe: one in the UK, one in Barcelona and one in St Petersburg. But you'd be wise to recall that Ghosn also serves as CEO of Renault, one of the biggest players in European automobile manufacturing. He also sits on the boards at Russian automaker AvtoVAZ (of which Renault owns 25 percent) and of his native Brazil's Banco Itaú, not to mention the advisory councils of a handful of universities - two of them from his ancestral hometown of Beirut. He previously served as president of ACEA in 2009, and was re-elected to replace outgoing PSA chairman Philippe Varin.
Alongside Renault, ACEA membership includes BMW, Daimler, Fiat, Jaguar Land Rover, PSA Peugeot Citroën, Volkswagen and Volvo, along with the European divisions of Ford, General Motors, Hyundai and Toyota, as well as a handful of truck manufacturers.

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