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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.

2016 Nissan Titan gets video teaser ahead of Detroit debut

The Detroit Auto Show is going to be quite an event for pickup fans thanks to introductions of the new Toyota Tacoma and at least the rumor about the future F-150 Raptor. In addition to them, Nissan will finally unveil its next-gen Titan after months of teasing and spied glimpses. With just a few weeks before the big show, Nissan is giving us one more glimpse of the new Titan on video. This time the company plays up the pickup's American development, but the highlight for fans are the brief shots of its frame and Cummins 5.0-liter diesel V8. The engine is rumored to pump out over 300 horsepower and about around 550 pound-feet of twist. Check out the clip above another chance to see just a little more of the next Titan.

With Nissan dragging it down, Renault predicts a worsening year

PARIS — Renault warned revenue may decline this year, scrapping a previous goal, after first-half profit was hit by weakening car demand and an earnings collapse at alliance partner Nissan in the wake of the Carlos Ghosn scandal. Net income slumped by more than half to 970 million euros ($1.08 billion) in January-June as revenue fell 6.4% to 28.05 billion, the French carmaker said on Friday. Operating profit also dropped 13.6% to 1.65 billion euros. "Given the degradation in demand, the group now expects 2019 revenues to be close to last year's," Renault said — abandoning an earlier pledge to increase revenue before currency effects. A broad-based auto sales downturn has rattled the sector, prompting profit warnings and compounding challenges for Renault and Nissan as they struggle to turn the page on the Ghosn era. Their former alliance boss is now awaiting trial in Japan on financial misconduct charges he denies. Renault's bottom line was hit by an 826 million-euro drop in earnings from its 43.4%-owned partner. Nissan is cutting 12,500 jobs globally after an earnings collapse that it is keen to blame on Ghosn's leadership. But Renault's own performance - reflected in an operating margin that declined to 5.9% from 6.4% the year before - compares less favorably with domestic rival PSA Group. The Peugeot maker bucked the downturn with a record 8.7% profit margin unveiled on Wednesday. Alliance tensions flared after Ghosn's November arrest, worsened when Renault tried in vain to merge with Nissan then Fiat Chrysler, and may be affecting operational performance, investors fear. Citi analyst Raghav Gupta-Chaudhary flagged a lower-than-usual 258 million euros in joint purchasing savings for Renault. "We thought this would be weak in light of the well-documented difficulties with the alliance," he said. Renault blamed falling sales in France, as well as Turkey and Argentina, for a 7.7% revenue drop at its core automotive business, whose profit margin slid to 4% from 4.5%. Operating free cash flow also suffered, coming in at a negative 716 million euros as investment jumped by 742 million euros to 2.91 billion. Renault, which is counting on model launches including a new Clio mini to boost performance in the second half of 2019, nonetheless reiterated pledges to deliver positive full-year cash flow and a margin close to 6%. Renault shares were down 0.5% at 52.02 euros as of 0800 GMT in Paris, after initially falling as much as 2.7%.