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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.

2015 Nissan GT-R Nismo to pack 595 hp, lap N"urburgring in 7:08

With two major auto shows taking place this week on different sides of the globe, the amount of news being posted across the internet is reaching a fever pitch. Naturally, things happen, trigger fingers get itchy and stories get leaked, which is apparently how we came across this spate of premature pictures and information on the eagerly anticipated Nissan GT-R Nismo.
Packing 595 horsepower and 480 pound-feet of torque from its twin-turbocharged, 3.8-liter V6, the Nismo-fied GT-R should be a serious kick in the pants when run hard. The new power is thanks to a number of donor parts from the GT-R Nismo GT3 racecar, bits that include larger turbochargers, revised intake and exhaust systems and new ignition timing.
Thanks to the engine enhancements, and, we imagine, a few other tweaks to the chassis, brakes and aerodynamics that have yet to be published, the GT-R Nismo is said to blitz the Nürburgring in just 7:08, a mere 11 seconds slower than the $845,000 Porsche 918 Spyder. For a car that is rumored to cost well under a quarter of the price, that performance is just immense.

Nissan GT-R takes a bloody whack at supercar rivals in fake ads

A big part of what makes a supercar super is how it makes you feel, but the performance stats and bragging rights are undeniably a big part of the equation as well. Which means you can't ignore the fact that, even with its price ever escalating, the Nissan GT-R makes minced meat out of European exotics costing twice or three times as much.
That's the inspiration for this trio of fake ads from photographer Tim Kent. In this mock campaign, Kent has depicted the GT-R as a butcher's knife and the European exotics as pieces of slaughtered meat. Ferrari is symbolized by a package of horse meat, Porsche by a pack of sausages and Lamborghini as a pair of, um... "prairie oysters".
Of course the ads are never going to run anywhere, and if you're squeamish (or vegetarian) we wouldn't suggest looking at them in close proximity to your lunch. But we have to admit they're creative, and effective.