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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 to make 85% of the vehicles it sells here in US

We could be in for a big push from Nissan in the manufacturing realm if Vice President of US Sales and Marketing Fred Diaz has anything to say about it. Speaking to the Automotive Press Association recently, Diaz (above) expressed a desire to build some 85 percent of the vehicles Nissan sells to Americans in the US, claiming it will happen "in the very near future." Nissan has already moved to increase exports of its US-built products, and in 2013, it built just over 76 percent of the models it sold in this market within our country's borders.
"Any issues of us taking advantage of the value of the yen, we want to dispel that," Diaz told reporters, pointing out the contentious issue of currency manipulation. There's also the obvious goal of positive PR - Americans like things made in America, and they like companies that invest in America. Diaz is quick to point out that Nissan had done just that: "While a lot of people retrenched [during the recession], instead we leaned into it and we continued investing and in fact made over $5 billion in investments, bringing a lot of production from Japan to the United States and to Mexico," Diaz said, pointing out that Nissan has helped create 8,000 jobs through its investments.
Nissan runs three factories in the US, two in Tennessee and one in Mississippi. Between the three, production is up 22 percent, while the overall exports from the facilities have increased by 100,000 units, Diaz told reporters.

Half of Chinese car buyers won't shop Japanese over hard feelings

The hard feelings between China and Japan is no real secret. Besides modern-day disputes, the two countries have had a long-running enmity that dates back to well before the atrocities of World War II. All things considered, then, it shouldn't be a shock that half of Chinese car buyers wouldn't consider a Japanese car. This survey, conducted by Bernstein Research, found that 51 percent of 40,000 Chinese consumers wouldn't even consider a Japanese car – which, again, isn't really surprising, when you consider stories like this. According to Bernstein, the most troubling thing is the location of these sentiments – smaller, growing cities where the population is going to need sets of wheels. We imagine it wouldn't be as big of an issue in traffic-clogged Shanghai or Beijing, but these small cities are going to become a major focus for automakers. "Nationalistic feelings are an impediment. [Japanese] premium brands will struggle," analyst Max Warburton wrote in a research note, according to The Wall Street Journal. Things will improve for Japanese makes, although China will remain a challenge, with Warburton writing, "the one thing that comes out most clearly is that most Chinese really want a German car. While we expect Japanese brands to continue to recover market share this year, ultimately the market will belong to the Germans." There are a few other insights from the study. According to WSJ, Japanese brands are viewed better than Korean brands, and they're seen as more comfortable than the offerings from Germany or the US, despite the fact that everyone in China apparently wants a German car. This is a tough position for the Japanese makes to be in, as there's really not a lot they can do to win favor with Chinese buyers. It will be interesting to see how this plays out, particularly as the importance of the PRC continues to increase year after year. News Source: The Wall Street Journal - sub. req.Image Credit: Kazuhiro Nogi / AFP / Getty Images Honda Mazda Nissan Toyota Car Buying