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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.

Renault-Nissan has sold 200,000 EVs, claims 58 percent global share

The all-electric Renault Zoe sold 10,000 units during its first year on sale and the French automaker has sold a total of about 51,500 EVs since starting sales of its four-vehicle EV lineup in 2011. Renault's collection also includes the Twizy two-seater, the Fluence sedan and the Kangoo van – just look at the awesome concepts from 2009 in the gallery above. Throw in the fact that the Nissan Leaf has sold around 150,000 around the world and some sales of the e-NV200 delivery van, and we get to a banner headline for the Renault-Nissan Alliance: the companies have sold over 200,000 EVs since the Leaf went at sale in the end of 2010. The Alliance announced it crossed the 100,000 EV sales mark in July 2013, so we can calculate that the two companies are selling roughly 6,250 EVs a month, with the Leaf making up the bulk of that figure (the car is averaging around 3,000 units a month in the US alone). Nissan says that Leaf has cumulatively sold around 67,000 Leafs in the US, 46,500 in Japan and 31,000 in Europe. The 6,250 sales per month is a rough estimate, since the Alliance says its sales are up 20 percent this year compared to last. Still, all told, Renault-Nissan claims it has 58 percent of the global market share for EVs, and its battery-powered vehicles have driven four billion kilometers (2.48-billion miles), which has prevented 450 million kilograms of CO2 from entering the atmosphere. Who wants to bet when the 300,000 threshold will be crossed? Renault-Nissan Alliance sells its 200,000th electric vehicle Renault-Nissan EVs have driven 4 billion kilometers and enjoy 58% of zero-emission global market share Nissan LEAF remains best-selling EV ever; Renault led in Europe last month Alliance launches monthly video series introducing electric vehicle owners from around the world sharing their personal stories with their zero-emission car PARIS/YOKOHAMA (Nov. 26, 2014)-The Renault-Nissan Alliance has sold its 200,000th electric vehicle and has a leading 58% market share for zero-emission cars. Together, Renault and Nissan EVs have driven approximately 4 billion zero-emission kilometers – enough to circle the earth 100,000 times. Renault-Nissan's EVs represent 200 million liters of fuel saved – enough to fill about 80 Olympic-sized swimming pools. Alliance EVs also represent 450 million kg of CO2 that has not been emitted while driving.

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.