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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.

Chinese Nissan Leaf goes on sale in September as Venucia e30

The upcoming Chinese version of the Nissan Leaf, the Venucia e30, was not the highlight of the Dongfeng Nissan stand at this year's Beijing Motor Show. That honor goes to the R30, a compact car with "segment-competitive fuel economy" and a starting price of under RMB 50,000 ($8,033 US). But that doesn't mean Dongfeng didn't make some news about the debut of the world's most popular electric vehicle in the world's most populous country. Dongfeng Nissan will start selling the e30 in the Chinese retail market this September. In a world where EV promises are not always worth the paper they're printed on, it's nice to see this target date is actually ahead of schedule. The sales launch follows EV pilot programs that saw 300 of the EVs rack up a total of one million kilometers (621,000 miles) in Guangzhou, Xiangyang and Dalian since December 2013. The e30 might just be the first or many EVs, since Donfeng-Nissan showed off the Viwa Concept EV last year. There are a few more details in the press release below. Dongfeng Nissan Unveils VENUCIA R30 at Auto China 2014 BEIJING, April 20, 2014 /PRNewswire/ -- Dongfeng Nissan Passenger Vehicle Company ("Dongfeng Nissan"), the passenger vehicle business unit of Nissan's joint venture in China, today unveiled R30 at Auto China 2014. R30 is the 4th production model for the company's new VENUCIA brand. The compact R30 delivers segment-competitive fuel economy with the strongest engine in class through a 1.2-liter gasoline engine, features a spacious interior, and offers easy handling for drivers to provide a high quality yet competitively priced car to Chinese consumers. The price of the main grade will be less than RMB 50,000. "Very competitively priced, R30 is the perfect entry car for Chinese consumers," said Ren Yong, Deputy Managing Director of Dongfeng Nissan. "I believe many Chinese consumers will choose R30 as their first car in the continuing motorization of China." Bookings for R30 will start within the next two months. Dongfeng Nissan also announced that e30, Venucia's electric vehicle, will be sold in the retail market starting in September. The company has already commenced EV pilot programs in the cities of Guangzhou, Xiangyang and Dalian, with a total of 300 e30s recording a total mileage of one million km since the programs started in December 2013. Venucia recorded sales of more than 100,000 units in 2013 and is targeting a 50 percent increase in sales this year.

Even Ferrari swept up in latest Takata recall expansion

The scope of Takata's deadly airbag problems continues to widen. Eight manufacturers announced recalls Friday that affect more than 12 million vehicles, according to documents filed with federal regulators. The automakers include Honda, which is recalling 4.5 million units, Fiat Chrysler with 4.3 million, Toyota with 1.65 million, and Subaru, which is recalling almost 400,000. Some of these cars include the Saab 9-2x and Pontiac Vibe that Toyota and Subaru made for General Motors. Mazda will recall 730,000 vehicles and Nissan has 400,000 affected units. The smallest numbers were posted by Mitsubishi, with 38,000 Lancers manufactured from 2006 to 2007, and as a noteworthy high-end manufacturer, Ferrari is calling back 2,800 vehicles. These are all US-market cars. Beyond America, the Japanese Transport Ministry has announced seven million additional vehicles will be recalled, which means 19.6 million vehicles across the globe are affected by recalls announced. The defects have been traced to an insufficiently manufactured airbag inflator, which lacks a drying agent that would prevent the inflators from deteriorating over time. Thirteen deaths have been linked to the faulty airbags, which have become unstable and are prone to exploding and showering vehicle occupants with lethal amounts of metal shrapnel. A private equity firm, KKR & Co., has been named in a possible buyout of the struggling Takata. Related Video: News Source: ReutersImage Credit: Shutterstock Government/Legal Recalls Ferrari Honda Mazda Automakers Mitsubishi Nissan Pontiac Subaru Toyota Saab Safety