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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.

2014 Nissan Rogue gives us our best look yet

Nissan is reportedly fast-tracking the development of its next-generation Rogue crossover, and judging by this latest set of spy shots, the new small CUV is coming along quite nicely.
To no one's surprise, the new Rogue takes the vast majority of its design cues from the Hi-Cross concept that debuted at the 2012 Geneva Motor Show, and specific elements like the pronounced wheel arches, angular nose, flat roofline and more stylized taillmaps should make for a Rogue that's far more style conscious than the model it replaces. This stronger design language should help the new Rogue to better stand out in the sea of Honda CR-V and Toyota RAV4 rivals.
There's far more to the new Rogue than just some swoopier sheetmetal, though. This crossover is expected to be the first vehicle to ride on the Renault-Nissan CMF (Common Module Family) platform, an architecture flexible enough to eventually support a host of new products. As we reported earlier, the next Rogue will be built in the US, in Tennessee.

2013 Nissan Juke Nismo is the runabout we've always wanted

The 2013 Nissan Juke Nismo has officially bowed at the 2013 Chicago Auto Show. Wearing a full body kit that serves up 37-percent more downforce than the standard front and rear fascias, the tuned hatchback also comes equipped with larger 18-inch wheels and a lowered suspension. Up front, LED daytime running lights join the festivities as well as contrasting side-view mirror covers and wider fender flares. Inside, buyers can expect to find a new sports steering wheel clad in Alcantara, as well as a set of Nismo seats stitched with red accents.
Nismo also cranked up the power on the Juke's turbocharged direct-injection 1.6-liter four-cylinder engine. The Juke Nismo delivers 197 horsepower and 184 pound-feet of torque, compared to the 188 hp and 177 lb-ft available in stock configuration. Buyers can have the engine with either a six-speed manual transmission or CVT gearbox, and the Juke Nismo can also be had with either all-wheel drive or front-wheel drive. Check out the full press release below for more information.