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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.

'Qashqai' so hard to pronounce even Nissan is poking fun at it

In the US, there aren't a lot of vehicle names that are very difficult to pronounce. Maybe the Volkswagen Touareg might trip up a few people, but by and large, we've got it pretty easy. Our friends in Europe, though, have a bigger challenge, thanks to vehicles like the Nissan Qashqai. Yes, Qashqai.
Like the Touareg, the Qashqai draws its name from a nomadic people. While Nissan isn't making up words, then, it's still not an easy name to pronounce. Top Gear host Jeremy Clarkson routinely calls it a kumquat, for example. According to Nissan, though, it's pronounced "Cash'kai".
To get its point across as the second-gen Qashqai, the close cousin of the US market Rogue, prepares to launch in Australia, Nissan set up a little event at a coffee shop. Customers would place their orders, only to have the spelling of their names butchered rather badly. On the other side of the cup, there's a message from Nissan and the Qashqai.

Ghosn: Restoring Mitsubishi's reputation is biggest challenge

After news that Mitsubishi falsified its fuel economy data on every vehicle it has sold in Japan since 1991, and the tumble in the company's value that followed, the troubled carmaker has an unlikely savior. Nissan has confirmed it will purchase over one third of Mitsubishi's stock, or 34 percent. The stake is valued at $2.2 billion. Ghosn says making Mitsubishi a part of the Renault-Nissan alliance will save billions in development costs. But the merger certainly isn't without challenges. "The biggest challenge is to support Mitsubishi changing itself and growing and being profitable and restoring its reputation," said Ghosn. Nissan is a natural partner for Mitsubishi, and since the fuel economy scandal escalated from discrepancies in the data regarding Mitsubishi-manufactured, Nissan-badged Japan-market vehicles, it makes sense for the company to sweep in and save the day. Nissan itself is partially owned by Renault, and Nissan has a 15-percent stake in the French automaker. Mitsubishi's chairman, Osamu Masuko says that the merger was inevitable, that it "would have happened one day" anyway, according to the New York Times. Carlos Ghosn, chairman of both Nissan and Renault, is confident they will be able to turn Mitsubishi's fortunes around. "We have the track record to make it work", Ghosn said, referring to the Renault-funded rescue of Nissan in the early 2000s. Related Video: