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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 IDx Nismo and IDx Freeflow concepts are a bridge to the Datsun 510

We're not sure if someone from The Adjustment Bureau stopped by Nissan's PR department to explain the IDx Nismo and IDx Freeflow concepts, but the company's odd press release can't diminish our love for these two show favorites. We had been told to look out for an unnamed Datsun 510 BRE homage, and once we saw the brothers IDx, we knew we'd found them. But the press release doesn't mention anything about the Datsun 510 Brock Racing Enterprises, nor does it mention one Mr. Peter Brock, the man who won two Trans-Am championships in the Seventies for the nascent Japanese budget brand.
Instead, it declares that the cars were the result of a co-creation product development process with "digital natives," said natives being the whippersnappers born after 1990. Nissan says it worked with the young'uns to create two different expressions of "their desire for a basic, authentic configuration for a car." If that's true, it appears that what the kiddies really want are... two different homages to the Datsun 510 BRE that Peter Brock used to win two championships in the seventies for the nascent Japanese brand.
The IDx Freeflow - the "ID" is for "identification," the "x" is "the variable representing the new values and dreams born through communication" - takes the casual approach, with a light khaki exterior hue, a minimalist interior decked out in denim and a console shifter that works a continuously variable transmission. The IDx Nismo is out for blood, from its crimson interior to its five-point harness to its bolt-on flares and sidepipes. We aren't told what the digital natives requested for powerplants, but that's alright; if this is what "co-creation" looks like, we're not entirely against it except where that "CVT" is involved.

Recharge Wrap-up: Tesla will sell Model S on Alibaba in China, Wrightspeed electrifies garbage trucks

Tesla will sell cars in China using Alibaba's Tmall website. Customers will be able to use the Chinese shopping site to place an $8,200 deposit toward a Model S. Tmall will feature 18 preconfigured versions for customers to choose from, which won't offer quite the level of customization as Tesla's US site. Bloomberg's Jamie Butters calls it a "defensive move" on Tesla's part, and still expects the company to sell cars in China the traditional way. Watch the video at Bloomberg or read more at Bidness Etc. Tesla co-founder Ian Wright's company Wrightspeed is converting garbage trucks to EVs. The same brand that created the exciting X1 EV is making trash collection much cleaner. "Garbage trucks are the perfect driving cycle for us: they get two or three miles per gallon, drive 130 miles a day with 1,000 hard stops that chew on the brakes," says Wright. The system puts an electric motor at each of the truck's drive wheels, and includes an on-board generator that runs on diesel or natural gas to extend driving range. Read more at Xconomy. British company Hillside Leisure is converting the Nissan e-NV200 into a camper van. The electric RV, called the DalburyE, debuted at the UK's Motorhome and Caravan Show in Birmingham. It sleeps up to four people, and features a pop-up roof, a gas stove, fridge, sink and other amenities. It's a great way to take full advantage of an RV park's electrical outlet to charge the van while camping in it. Read more at Transport Evolved, and see more photos at Hillside Liesure's blog. Featured Gallery Tesla Model S View 10 Photos Related Gallery Nissan e-NV200 Electric Van View 24 Photos News Source: Bloomberg, Bidness Etc, Xconomy, Transport EvolvedImage Credit: Tesla Green Nissan Tesla Electric recharge wrapup