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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.

Carlos Ghosn's new lawyer, 'the Razor,' starts slashing

TOKYO — Carlos Ghosn's new lawyer took aim at Nissan, prosecutors and courts on Wednesday, dismissing the charges against the ousted chairman as an internal company matter and saying Japan was out of step with international norms by keeping his client in jail. "This should have been dealt with as an internal matter," Junichiro Hironaka, nicknamed the Razor, said at his first press briefing. Ghosn, who was arrested in November over alleged financial misconduct and remains in detention in a Tokyo jail, picked a new team last week with long-time defense attorney Hironaka as a key member to replace Motonari Otsuru, a lawyer who once ran the prosecutor's office investigating him. Hironaka's combative style contrasts with the low-key approach adopted by media-shy Otsuru. Ghosn's switch to an aggressive legal strategy came after his attempts to win bail failed and just before lawyers were due to sit down with prosecutors and judges for the first time to hash out a schedule for pre-trial discovery meetings, where prosecutors will reveal evidence and submit a list of witnesses. Hironaka said he didn't know why Ghosn picked him, but added that Ghosn probably wanted an experienced criminal lawyer as the case moved toward trial. The 73-year-old defense attorney is reputed for winning high profile cases, including the acquittal of a senior lawmaker, Ichiro Ozawa, on financial misconduct charges. He also helped free a senior bureaucrat Atsuko Muraki who was jailed for four months on corruption charges fabricated by prosecutors. Yet, even with greater legal firepower the former Nissan Motor Co boss faces a criminal justice system where only three out of every 100 defendants pleading not guilty are acquitted. Neither does Japan have a plea-deal mechanism that would allow Ghosn to agree to lesser charges for a lighter sentence. "The change in lawyers means a change in style, but the legal strategy will still be the same. I don't think it increases Ghosn's chance of an acquittal," said Masashi Akita, a defense lawyer at Shin-Yu Law Office in Osaka, ahead of Wednesday's comments by Hironaka. Ghosn has lost his perch atop an automotive alliance trio of French carmaker Renault SA and Japanese automakers Nissan and Mitsubishi Motors Corp. Attempts to win bail, including an offer to wear a GPS ankle bracelet and hire security guards to stop him trying to tamper with evidence, failed.

Nissan Sway displays the future of the compact hatch [w/videos]

Nissan is giving a glimpse at its future compact hatchback design with the Sway Concept at the 2015 Geneva Motor Show. The little, egg-shaped hatchback cribs styling elements from earlier show cars from the brand and mixes them together into an attractive five-door. Though, the company makes no mention of the model's powertrain. The Sway's most eye-arresting feature is its arching hood that leads to a deep, V-shaped grille similar to the Lannia Concept. The design element is flanked on both sides by boomerang-shaped LED headlights, and there's a splash of color from the orange accents under the air intakes. To draw the eye from front to rear, a crease flows over the fenders and then sweeps all the way back to the taillights. Nissan's floating roof motif also makes an appearance here, although it's not quite as obvious as on larger vehicles. As is common on show cars, the Sway has suicide doors with no B-pillar to let attendees in Switzerland have a good look inside. The interior appears to be an airy place to take a drive with a panoramic glass roof, and a windshield that rises up over the front occupants' heads. The driver gets a simple instrument cluster that's dominated by just two gauges, but there's a tablet at the center of the dashboard to provide extra info. According to Nissan, the whole point of the Sway's design is to take compact hatchback styling in a bolder direction. The first video below shows off even more angles, and the second has some of the brand's designers going in depth about the car's shape. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Nissan rethinks the compact hatchback: Introducing the Sway Concept Bold design theme showcases new design language Edgy exterior matched by elegantly simple interior Created to bring fresh, high-end thinking to compact hatchback segment GENEVA – Innovative design and product planning gave birth to the Qashqai and Juke, two of the biggest automotive success stories in recent years. Now the company has applied the same radical thinking to one of the most important sectors of the market: the compact hatchback. Unveiled at the Geneva Show, the Sway is a glimpse at how a future generation of compact Nissan models might look if the company's striking new design language was applied to a European hatchback.