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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 Xterra's fate hangs in the balance

The Nissan Xterra might not be long for this world, according to a report from Edmunds. The rugged SUV, which has always been a bit more of a hardcore, purpose-built vehicle than the rest of the Nissan SUV range. But it has also suffered from slowing sales, low fuel economy relative to the competition and general neglect, as Nissan has focused on other offerings in its range.
"There are plans to replace it, there are always plans, (but) I am not sure it will happen. I would say in the next six months to a year," Pierre Loing, vice president of product planning for Nissan Americas told Edmunds. Part of the problem, he added, was that the Xterra is a US-only vehicle, which makes it a hard sell in a world where automakers are increasingly depending on global cars.
Besides the economic forces working against the Xterra, it's just a vehicle that hasn't been a huge sales success of late. Customers are more conscious of fuel economy and a body-on-frame SUV that only nets 16 miles per gallon just isn't good enough; arguably why Nissan barely sold 17,000 units last year. We can hold out hope, as the Xterra remains a fun off-roader that we'd hate to see go, but unless Nissan finds a business case or some global partners, this is a vehicle that is on its last leg.

Infiniti brand will finally make its debut in Japan, but not the name

Nissan left the automotive media scratching its collective head when it announced that its Infiniti luxury brand would be renaming all of its vehicles, with cars wearing the Q designation and CUVs/SUVs wearing the QX badge. So the G Sedan became the Q50, and the G Coupe became the Q60. The QX56, meanwhile, became the QX80, and the FX crossover became the QX70. It is still thoroughly confusing nearly a year later.
Not content to confuse its US customers alone, Nissan will be fiddling with the name of one of its most revered Japanese-market models - the Skyline. Rebadged for the US as the Q50, and before that as the G Sedan/Coupe, the new Skyline will wear an Infiniti badge. What makes this truly confusing, though, is that the car won't be called the Infiniti Skyline, despite its badging. It won't even be called the Nissan Skyline, anymore. It's now just the Skyline. Apparently, Nissan thinks it can capitalize on the Skyline's link to the Japanese royal family (the Skyline was originally a product of Prince Motors, which provided vehicles for the Emperor and his family), by ditching any brand names and referring to it as its own model, according to Automotive News.
Now, confusion aside, there are things about Infiniti badging in Japan that make sense. Badging all the Nissans that eventually become Infinitis as Infinitis in the first place goes a long way to make the brand seem separate and distinct from its parent company. Speaking to AN, Infiniti's executive vice president of global product planning, Andy Palmer, puts it this way, "We have to treat Infiniti, if you will, in the same [way] that Volkswagen treats Audi. It's not a Nissan-plus. Infiniti has to stand head-to-head with any of those German competitors."