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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.

Tesla poaches Renault-Nissan communications boss Sproule

Need another sign that Tesla is growing into a force to be reckoned with? Bloomberg reports it has just snagged high-profile communications boss Simon Sproule from Renault-Nissan to become the EV maker's vice president of communications and marketing.
Sproule is an industry veteran, having spent 20 years at Nissan (where he grew to become CEO Carlos Ghosn's right-hand man). In addition, he logged stints at Ford, Jaguar (when it was still a Blue Oval-owned brand) and Microsoft. Despite all that experience, Sproule is still young, at just 45 years of age, as Bloomberg points out, yet he's held positions in the US, Japan and France over the years.
This is all good news for Tesla, which is in need of a strong spokesman outside of company CEO Elon Musk. It's been battling with the state of New Jersey and its governor, Chris Christie, over direct sales in the Garden State.

Nissan raises base GT-R price to $101,770 for 2014

Nissan has announced a few pricing tweaks for the 2015 GT-R, one of which pushes the most basic variant past $100,000 for the first time. The 2014 cost of entry was $99,590, while the 2015 GT-R starts at $101,770.
The GT-R Black Edition, meanwhile, will demand $111,510, up from 2014's $109,300. The GT-R Track Edition retains the $115,710 asking price of the 2014 car. The price increases on the base and Black Edition come with some additional goodies that should soften the blow to pocketbooks, including a retuned suspension that promises a "more sophisticated ride," while LED headlights come standard. Bose Active Noise Cancellation has also been added to the 2015 GT-R, as has a new interior color option on the base model. For a full rundown of new goodies on the GT-R, check out our original post on the 2015 vintage.
Interestingly, the destination charge for the 2015 GT-R has climbed dramatically, from 2014's $1,000 to $1,595 for the latest car. We've reached out to Nissan to see why there was such a big increase, and will update as soon as we have an update.