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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 applies for 'R-Hybrid' trademark, but what is it for?

Patent and trademark filings are sort of like tasseography for those of us in the auto industry. If you know where and how to look at something, there's a lot to be figured out. Take this trademark filing from Nissan - it's similar to the Pure Drive badge found on a Versa or Sentra, but the bottom half sports the phrase "R-Hybrid." This wouldn't be remarkable if the "R" in R-Hybrid weren't the same style as the "R" in the Nissan GT-R's badge, right down to the serifs.
While it's easy to see this as grasping at straws, it makes a fair degree of sense. The R35 GT-R may be a dominant performance machine, but it's been around since 2008, which is donkey years in the automotive industry. And based on the recent crop of hybridized hypercars and racecars, a hybrid GT-R doesn't seem like such a stretch.
As Car And Driver points out, figuring out that the GT-R will go hybrid isn't hard - figuring out when it will arrive, is. The buff book rightly points out that a new GT-R isn't expected until 2017, but that designing and trademarking a badge four years ahead of time is a bit odd. Car and Driver speculates that we could see a mildly hybridized R35, although the chances do seem remarkably low. Head over to C/D for a more thorough rundown on why this just might be a GT-R badge, including comparisons with other R-badged Nissans.

California has sold 102,440 EVs since Volt, Leaf went on sale in 2010

Last July, Plug In America declared that a Mitsubishi i-MiEV in Alabama was the 100,000th electric vehicle sold in the US. Today, the California Plug-In Electric Vehicle Collaborative announced that that many EVs have now been sold in California alone. To celebrate the milestone – which was actually 102,440 EVs sold in the Golden State between when the Chevy Volt and Nissan Leaf were introduced in late 2010 and the end of August 2014 – we spoke with some of the key players in moving the battery-powered metal off of the dealer lots and into driver's driveways. CARB's Mary Nichols drives a Honda Fit EV, and said that in LA, it's no longer "a weird thing." The chairman of the California Air Resources Board (CARB), Mary Nichols, took a broad overview. Nichols herself drives a Honda Fit EV, and said that in her home of Los Angeles, that's no longer "a weird thing." She told AutoblogGreen that, "The industry people that we work with are very clear about this, they think the electric cars sell themselves, in terms of their driveability and attractiveness, if you can get a person into one," she said. "The best way to get a person into one is for them to see it somewhere, and that's really what we're celebrating here. As you get to critical mass, and I think 100,000 vehicles is getting to that point, people start looking at these as an option as opposed to something that they walked into the dealership already wanting to get." Given CARB's support of hydrogen vehicles as well as EVs, we had to ask Nichols when she thought H2 would hit the 100,000-vehicle milestone. She declined to answer that question, but did say that, "Hydrogen vehicles are just beginning to be available in the market. They are just being very selectively and even more cautiously introduced than plug-in vehicles because of concerns that customers will have a good experience, and a good experience means that there has to be an adequate supply of fueling stations," she said. "There has been a lot of expression of interest and support and vision in this direction but we are just at the beginning stages, where we were with plug-in vehicles a few years ago. It's going to take a while." If you ask Nissan's Brendan Jones how a state can support a new technology like plug-in vehicles, he will point to how EVs were rolled out in California. Turns out, the company has learned a lot from selling so many Leafs there.