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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 gets new NA boss, lowered forecasts in management shakeup

José Muñoz, a Nissan and Infiniti sales and marketing vice president, will replace Colin Dodge as Nissan's new North America chief, come Jan. 1, as part of a wide-ranging management shuffle, Automotive News reports. Dodge will remain on Nissan's board, be assigned to special projects and report directly to CEO Carlos Ghosn.
Nissan is working on reorganizing its global operations into six regions, each with a new chief: North America (Muñoz' territory), Latin America, Japan-Southeast Asia, China, Europe and Africa-India-Middle East. Currently Nissan divides the globe into three regions, the Americas, Europe-Africa-India-Middle East and Asia-Pacific.
Nissan also lowered its sales forecast from 5.3-million vehicles to 5.2 million for the fiscal year ending on March 31, 2014. Last year, the company sold 4.914 million in the same period. In May, after Nissan's market share had fallen to 7.7 percent, Ghosn said he wants to double sales in the US by 2017 and increase its market share in the country to 10 percent.

Daimler and Nissan venture to build cars in Mexico

Nissan and Daimler have been partnering ever closer for years, and now an unnamed source has told Reuters that the automakers have agreed to a 50-50 joint venture in Mexico that would build Infiniti and Mercedes-Benz models. Given that the rumors about just such a deal go back nearly six months and similar rumblings are years old, this arrangement has been a long time coming.
The insider tells Reuters that a memorandum of understanding was signed between them last month to build the Mercedes GLA-Class and new Infinitis at Nissan's Aguascalientes factory. The rumor didn't say when production would begin. It wouldn't be the first time the two automakers have decided to share this platform - Infiniti will build its Q30 compact on it in the UK next year.
The partnership between the Renault-Nissan Alliance and Daimler goes back to 2010 when the companies signed an agreement to share engines, factories and platforms. Since then, products of the partnership have included the underpinnings for the next-generation Smart and Renault Twingo and shared engines among some other models.