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Nissan happy with plug-in vehicles for now, will wait on hydrogen

Anyone who's driven the Nissan Leaf knows that it won't set any land speed records. Still, ask Nissan Vice Chairman Toshiyuki Shiga, and the battery-electric vehicle will be miles ahead of any hydrogen fuel-cell vehicles for the foreseeable future in Nissan's advanced-powertrain plans. Figuratively, of course. Shiga, speaking in Singapore, elaborated on Nissan's interest in developing a production hydrogen fuel-cell vehicle, and, to put it bluntly, he said the company didn't have much interest, the Japan Times reports. Sure, Nissan reached an agreement with Mercedes-Benz parent Daimler and Ford early last year to work together to speed up fuel-cell-vehicle powertrain development. Like Toyota, Honda and Hyundai, the automakers appear to be following the axiom that hydrogen fuel-cell technology is the best-of-all-worlds option for advanced powertrain because of the combination of zero emissions and conventional-vehicle-like full-tank range. Still, the prohibitively high cost of building hydrogen refueling stations will prevent any substantial adoption anytime soon, Shiga says, hence Nissan's focus on battery-electric vehicles. Nissan sells the all-electric Leaf in about 40 countries, and the model is the best-selling battery-electric vehicle in the world. In the US, Nissan sold 24,411 Leaf vehicles through October, up 35 percent from a year earlier.

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 presents NV200 is the brave new face of London taxis [w/video]

In most cities, just about any vehicle can serve as a taxi - so long as it meets the owner/operator's requirements for reliability, comfort and utility. But certain cities have their own unique taxis, and Nissan has been working hard to corner those markets. It has already designed specific taxis for such locations as New York, Barcelona and Tokyo, but its latest effort will bring a new Hackney Carriage to the streets of London.
A year and a half ago, Nissan displayed its NV200 on the streets of London in traditional black livery. But this new design takes the customization for the British capital one step further. Working closely with the mayor's office and with cab drivers across the city, Nissan's European design center in the Paddington district has reskinned the NV200 specifically to serve as the new black cab in London. The new face features round headlights, a new grille, LED lighting and a restyled front bumper. The steering has also been reconfigured to meet the 25-foot turning circle requirements for Hackney Carriages, as the black cabs are known on the streets of London.
The result is a distinctly British take on the NV200 taxi - one that we're guessing won't go without its fair share of controversy. Nissan will begin offering the black cab at the end of the year with a 1.6-liter gasoline engine mated to an automatic transmission, a powertrain said to be cleaner than the diesels used in existing taxis. And Nissan should know, having supplied many of those 2.7-liter turbodiesels in the '80s and '90s. But if that's not clean enough, the Japanese automaker will also begin selling an electric version, the e-NV200, starting next year. Watch the video clip and read the full details in the press release below.