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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 Leaf makes it 19 in a row for record sales; Chevy Volt drops 21 percent

The Nissan Leaf continues its streak of "best month ever" sales with 2,881 EVs sold in September. Compared to the 1,953 sold in September 2013, that represents an increase of 47.5 percent and, as Nissan itself must be tired of saying by now, it marks yet another best month ever, same as last month and now the 19th in a row. Okay, sure, we know, Nissan will tout this run for as long as it can, but we're certainly expecting it each month, so if it ever doesn't happen, it'll be interesting to see how Nissan talks about it. Year-to-date, Leaf sales are up 35.7 percent compared to 2013. In any case, Nissan's director of EV marketing, Toby Perry, sent AutoblogGreen a statement that said, "Nissan Leaf owners have turned into some of our best marketers, and they jump at any opportunity to share their enthusiasm with friends and family. Take National Drive Electric Week – a grassroots celebration of all things EV and the perfect platform for LEAF owners to showcase the benefits of going electric. After celebrating with EV owners in more than 130 cities across the country, we saw a significant increase in Leaf showroom visits with midweek traffic just as heavy as what we see on the weekends." Year-to-date, Leaf sales are up 35.7 percent compared to 2013. Over on the Chevy Volt front, things aren't quite as rosy. After coming off a good August (the best sales month of 2014 by almost 500 units), Volt sales were down to 1,394, a decrease of 21.1 percent compared to September 2013. So far this year, Volt sales are down 13.2 percent year-over-year. It's kind of a stretch, but perhaps people are already waiting for the next-gen Volt, which will be revealed at the Detroit Auto Show in January, to go on sale? Speaking of things we say every month, our in-depth round-up of US green car sales is in process and will be appearing soon. Until then, please discuss how these two long-standing plug-in champs are doing on the sales floor. Green Chevrolet Nissan Electric Hybrid PHEV ev sales hybrid sales

Ford and Lincoln design honcho leaves to head Nissan North America design

Last Friday, David Woodhouse suddenly resigned from his dual positions as Ford's director of global strategic design and director of Lincoln design. In a post not long after leaving, he praised the efforts of his former team over the past six years he headed design at Lincoln. Among other products, that crew gave us the redesigned Navigator, the Continental concept and production sedan, and the Aviator concept and production crossover. Car Design News reports Woodhouse traded Michigan for California, taking the role of VP at Nissan Design America in San Diego. He officially assumes the position July 1, and will also serve on the Japanese automaker's Global Nissan Design Management Committee. Woodhouse has spent more than 25 years in the design department, starting with BMW and work on the Mini and Range Rover brands, followed by a brief stint with Cadillac of Europe. For the past 20 years he's been with Ford, coming on board with the Ford's former luxury arm known as the Premier Automotive Group — Jaguar, Land Rover, Aston Martin, Volvo and Lincoln. He became Lincoln's design director in 2013, introducing the world to the design language labeled "quiet flight." He described the language's details as "anti-wedge body gestures, S-curves wherever possible, and an emphasis on horizontal lines at every opportunity to create leaner, longer, wider emphasis on the exteriors, and create equilibrium, balance, and calmness on the interiors." A much shorter way to describe it is: revitalized Lincolns. The U.S. luxury maker's new and overhauled products have been praised for their lines by critics and by paying customers. The brand's done so well it's hard to remember when the MKC concept was a revelation, and that goes on Woodhouse's resume, too. That's some special juju to take to Nissan, where Woodhouse will lead both Nissan and Infiniti design focused on the North American region. Nissan has a solid if uninspiring lineup that sells well here, while Infiniti, as the luxury brand, is the bigger issue. Infiniti sedans glide on the contrails of a design language more than 10 years old. The money-making crossovers and SUVs haven't made a splash in about the same time, since the long-ago FX45. Nissan's plan to update 70 percent of its lineup over the next few years and Infiniti's transition to an all-electric brand makes right now the perfect time to break into riveting designs for the street. Woodhouse replaces Taro Ueda, who moves into a global role with Nissan.