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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.

Recharge Wrap-up: Uber drops rates in NYC, Renault Zoes for Rungis, Nissan Leaf is recycled

Uber is really taking it to cabbies in New York City. The car-hailing smartphone app has temporarily cut rates to its lowest-cost UberX service by 20 percent, now making it much more competitive - even cheaper in many cases - to request a ride from the app than to hail a NYC taxi. Also, tip is included in Uber's rate, while yellow cab fares do not include tip. However, Uber's rates vary depending on certain variables such as traffic and demand. Uber has been the target of protests by cabbies in other cities, but the NYC Taxi and Limousine Commission seems confident about the competition for the time being. Read more at CNN Money. Formula E is officially partnering with the Prince Albert II of Monaco Foundation, an environmental charity organization focused on climate change, clean energy, biodiversity and water management. Formula E will host fundraising activities during its events to benefit the foundation, as well as its other charity partner, One Drop. The Prince of Monaco, besides his passion for environmental issues, is also an automotive enthusiast with a massive car collection, so the all-electric race series seems like a perfect fit for his organization. Read more at Formula E's website. Semmaris has purchased a fleet of seven Renault Zoe electric cars for its Rungis International Market outside of Paris. The fleet is part of an effort to reduce the market's carbon footprint, as well as as part of an awareness campaign for clean technology. Rungis Market is a destination for some 25,000 customers, many of whom run businesses (especially restaurants) and travel to Rungis for supplies, the sort of trip for which electric vehicles make a lot of sense. The market will also install charging stations, and create an electric carsharing service for use on its campus. Read more about the program in the press release below. The Nissan Leaf has reduced CO2 emissions by 151,000 tons, but its green cred also extends to recycling. About 25 percent of the Nissan Leaf - or about 827 pounds of the car - is made from recycled materials. Those materials include metals such as copper, steel and aluminum, as well as plastics and fabrics. The body uses recycled metals, the seat fabric uses recycled PET from plastic bottles, sound insulation comes from recycled clothing and the center console is made from recycled electronics. Even some of the recycled materials get recycled.

Infiniti Q50 Eau Rouge gets the heart of a GT-R [w/video]

There has been ongoing talk of an Infiniti using the Nissan GT-R powertrain practically since the moment the Nissan's flagship sports coupe hit the road. While the rumors have gone back and forth over the years, they have never completely gone away. It seems Infiniti is finally turning an ear to the screams of its most vocal enthusiasts with an updated version of the Q50 Eau Rouge concept boasting a modified version of Godzilla's engine and all-wheel drive system debuting at the 2014 Geneva Motor Show. It's even taking things a step further and granting it a new, seven-speed transmission to replace the Nissan's six-speed.
The latest evolution of the Eau Rouge packs the same 3.8-liter, twin turbocharged V6 found in the GT-R but with a unique tune of 560 horsepower and 443 pound-feet (600 Newton-meters) of torque. That makes it 15 hp more powerful than the standard 2015 GT-R but gives up 20 lb-ft of torque. Power gets to the ground through the GT-R's all-wheel-drive system. Infiniti predicts that the Eau Rouge would sprint to 60 miles per hour in less than 4 seconds and on to a top speed of 180 mph.
According to Infiniti Communications Senior Manager Kyle Bazemore in an email to Autoblog, the modded GT-R powertrain was not the only choice for the Eau Rouge. It also considered "developing a high-power sports diesel" and hybrid versions with an electric supercharger. However, "this was the clear solution for this concept car," Bazemore said. Other than the drivetrain, the Eau Rouge in Switzerland is identical to the one shown in Detroit. Sadly, it is not confirmed for production; so we might not be getting the fabled Infiniti GT-R sedan any time soon. Still, we can hope.