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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 Kicks concept debuts in Sao Paulo [w/videos]

The Sao Paulo Motor Show only comes around once every other year, and Nissan - an automaker deeply vested in the Latin American market - isn't missing out on the opportunity to showcase a new crossover concept.
Called the Kicks concept, the crossover seems to slot in size-wise in between the Juke and the Rogue. Nissan isn't saying much about it, though, aside from its having drawn its inspiration from Brazil with a "satin titanium" finish and bright orange trim - the former taking its cues from Sao Paulo and the latter from Rio.
While emphasizing its Brazilian character, Nissan also stresses that the concept's creation was "a product of global collaboration." So while it isn't saying anything about production feasibility, it is seemingly suggesting that if it were put into production - and as we stated previously, we think it just might - it could stand to be a global model and not confined strictly to South America.

Watch a Nissan GT-R make up 17 spots on the first lap

By now, enthusiasts should be plenty used to seeing the Nissan GT-R passing "lesser" vehicles on the road - and let's face it, that accounts for a good 99-percent of other cars out there. But what about on the racetrack, where GT racers are all homologated to the same general specifications and tuned with an eye toward fairer competition?
Turns out Godzilla is just as formidable an adversary on the track, as demonstrated by this latest video. Shot from inside the cabin of British driver Alex Buncombe's GT3 racer during the Blancpain Endurance Series race at Monza, the video shows what happens (or at least happened this time) when a well-driven GT-R is relegated to the back of the grid - even when that grid is populated by the likes of Porsche, Aston Martin, Lamborghini and McLaren.
Buncombe and his teammates in the Nissan GT Academy Team RJN ultimately finished the race in 13th place, but what's remarkable is that they started way back in 32nd, making up 17 places on the first lap alone. Scope out the frenetic action in the video below.