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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 exec Andy Palmer derides Toyobaru coupes as 'midlife crisis' cars

Andy Palmer, Nissan's executive vice president, does not like the Scion FR-S or Subaru BRZ. To us, that's like saying you enjoy barbecuing puppies, but we'll let him slide, because his statements about the Toyobaru twins are much, much more than just idle trash talk.
Speaking to Motor Trend's Nate Martinez, Palmer said, "Do we have any competitors [in the small, rear-drive coupe segment]? Are you talking about the Subaru [BRZ]? It was a car designed for a 50-year-old. It's for a midlife crisis. That's not what we do." Strong words, but what followed was even better.
"Are you coming to the Tokyo Motor Show? You'll see the answer to the midlife crisis. Except it won't be for the midlife crisis." So, if you were wondering whether Nissan is working on a competitor to the Scion FR-S and Subaru BRZ, the answer seems to be a resounding "yes."

Nissan commits to adding 'iconic' design after Cube killed off

The Nissan Cube is on its way out here in the US and Canada. In a way, that's too bad, simply because the Cube's styling was nothing if not distinctive - much like the company's own Juke. However, the flame for uniquely styled models is indeed still burning over at Nissan.
We might never see an exact replacement for the Cube in the brand's lineup, but product planning boss Andy Palmer says that its retirement leaves a spot open in the Nissan lineup for something else. "To be clear, we will morph this space in our portfolio into something iconic," said Palmer to Automotive News. Unfortunately, he wouldn't hint at what that could mean.
However, his lack of suggestions makes it fun to speculate about what oddity could replace the Cube, especially since two of Nissan's more recent quirky concepts might have problems hitting the road. The Bladeglider is mired in Nissan and Deltawing Technologies' ongoing patent lawsuit. Alternatively, the retro-inspired IDx might be too expensive to build profitably. Still, this is the company that created both the (nearly dead) Murano CrossCabriolet and the very successful Juke; it can probably come up with something else delightfully weird.