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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.

Japan court adds 10 more days to Ghosn's detention

A Japanese court on Sunday extended for 10 days the detention of ousted Nissan chairman Carlos Ghosn, who is facing new allegations of making the car maker shoulder $16.6 million in personal investment losses. The extension announced by the Tokyo District Court means Ghosn will remain in Tokyo's main detention center, where he has been confined since his arrest last month on initial allegations of financial misconduct. Ghosn was re-arrested on Friday based on suspicions that around October 2008 he shifted personal trades to Nissan to make it responsible for 1.85 billion yen ($16.6 million) in appraisal losses, prosecutors said. They said the move inflicted damage on Nissan by having it deposit a total of $14.7 million on four occasions between June 2009 and March 2012 into a related bank account. (Reporting by Daniel Leussink; editing by Darren Schuettler)Related Video: Government/Legal Hirings/Firings/Layoffs Nissan Renault