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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.

New allegations against Ghosn concern payments to Saudi businessman

BEIJING – Fresh misconduct allegations brought by Tokyo prosecutors against ousted Nissan Chairman Carlos Ghosn center on the use of company funds to pay a Saudi businessman who is believed to have helped him out of financial difficulties, two company sources with knowledge of the matter said. Prosecutors arrested Ghosn for a third time on Friday, accusing him of aggravated breach of trust in transferring personal investment losses to the automaker. The prosecutors' statement said they believe that around October 2008, Ghosn was trying to deal with losses on paper of 1.85 billion yen ($16.6 million) incurred on a swap contract he had with a bank which it did not name. A person helped arrange a letter of credit for Ghosn and a company run by the person later received $14.7 million in Nissan funds in four installments between 2009 and 2012, the statement said, adding that the payments were made in Ghosn's and the person's interests. "By doing so, (Ghosn) behaved in a way that breached trust, and inflicted damage on the property of Nissan," the statement said. The statement also said Ghosn had earlier sought to have Nissan shoulder the appraisal losses directly. According to the Nissan sources who have knowledge of the company's probe into its former chief, the person who helped Ghosn is Khaled Al-Juffali, vice chairman of one of Saudi Arabia's largest conglomerates, E. A. Juffali and Brothers, and a member of the board at the Saudi Arabian Monetary Authority. He is also majority owner of a company called Al-Dahana which owns half of a regional joint venture called Nissan Gulf with the other half held by a wholly owned unit of Nissan Motor. Sheikh Khaled Juffali has no comment on this subject, according to an emailed statement from E. A. Juffali and Brothers. Ghosn's Tokyo-based lawyer, Motonari Otsuru, was unavailable for comment on this article, according to a person who answered the phone at his law office. A representative for the Ghosn family declined to comment. Other media have said Ghosn has through a lawyer denied that he shifted losses to Nissan and has told investigators that the four payments were for legitimate business purposes, including a reward for handling problems at Nissan dealers in Saudi Arabia. Tokyo prosecutors declined to comment. Asked about Ghosn's reported comments, a Nissan spokesman said: "We cannot comment on matters related to Ghosn's arrest for breach of trust.

2018 Honda Accord charges into slumping sedan market

DETROIT - Honda on Friday revealed its newest-generation Accord, one of four re-engineered midsize sedans that Asian automakers are betting on to win market share as Detroit automakers shift focus to SUVs, crossovers, and pickup trucks. The new Accord, like rival Toyota's all-new Camry arriving this month, offers major improvements in fuel economy, technology, styling and safety. Honda declined to discuss details ahead of Friday's event in Detroit. The Accord and Camry are pillars of their manufacturers' US businesses, each selling well over 300,000 vehicles a year. In the coming months, Nissan is expected to launch a new Altima midsize sedan, and Hyundai will launch a new Sonata. Both are popular marques that will be promoted heavily. "There has been no new news on the midsize sedan side for three years, and we think this is a great opportunity to bring attention back to the segment," said Jack Hollis, Toyota's head of marketing for North America. Year to date, US passenger car sales are down 11.4 percent, and sales of midsize sedans are down 14.2 percent. Still, Americans bought 7.1 million sedans in 2016. With General Motors and Ford cutting sedan production, and Fiat Chrysler Automobiles abandoning the segment, Honda and its Asian rivals could boost sales with updated models, dealers said. "They could take share from other brands, which is traditionally what happens when a new product is launched," said Pete DeLongchamps, vice president for manufacturer relations at Group 1 Automotive Inc, the third-largest US auto dealer group. "NOT FINDING A PLACE WITH CONSUMERS" The Accord for years was Honda's top-selling model in the United States. Within the past year, US sales of the Honda CR-V have eclipsed the aging Accord, and Honda has expanded production capacity for the compact crossover. Passenger-car sales have steadily declined since 2012, when they made up 51.2 percent of the US market. Sedans have sagged to a 38.1 percent share in the first half of this year. IHS Markit said US consumer loyalty to SUVs and pickup trucks has risen since 2012, but declined for sedans. The new Accord and Camry "may stem the decline," said IHS Markit's Tom Libby. "I don't think they will cause a marked reverse." Improvements to the Accord should boost sales at Galpin Honda in San Fernando, California, general manager Ed Hartoonian said.