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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 hopes to inject some spice into Rogue with 'Open The Briefcase'

Nissan is in the midst of rolling out the redesigned 2014 Rogue and has launched an interesting social media game called Open The Briefcase. The video that launches this game depicts a simple ride-share gone very wrong, with a man getting embroiled in a high-speed chase in a bid to escape with a strange briefcase. Eventually, it all goes haywire, and the man and his driver are captured. The only question seems to be, what's in the briefcase?
The contest, which asks participants to select one of three briefcases by cracking a code, is set to reward three individuals with a new Rogue. New attempts can be made each day, and participants can get additional chances to open a briefcase by sharing the video. The contest kicked off on January 3 and will run until February 14. Hop over to the contest page on Facebook to take part, or just watch the video below and enjoy a bit of entertainment.

Nissan IDx 'in the plan' for production, needs support from fans [w/poll]

If there's a trend in the auto industry we can firmly get behind, it's the small, light and affordable rear-drive coupe. The positive critical reception to the Scion FR-S and Subaru BRZ twins has encouraged other manufacturers to look at building their own rear drivers, and even a few to show actual concept cars based on the idea. The Chevrolet Code 130R from 2012 and more recently, the Nissan IDx twins that were first shown at the 2013 Tokyo Motor Show both come to mind, as does the brand-new Kia GT4 Stinger Concept.
Nissan trotted out the IDx Nismo and the IDx Freeflow for another showing in Detroit and we'll admit to being totally smitten with both cars. Again. The duo draw inspiration from the iconic Datsun 510, a lightweight, affordable rear-driver that remains a cult favorite decades after production ended.
Now, a report from our friends at AutoWeek reveals that we may, possibly, hopefully see a production IDx, provided fans make a strong enough case for it. "It's in the plan," Nissan product boss Andy Palmer told AW. According to the report, Palmer said the IDx is "into the first sage of the development process. The next stage is project validation and then looking at the business case. It's no one's intent to waste millions of the company's money, so obviously we have a good feeling about this one."