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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.

Recharge Wrap-up: Nissan Murano Hybrid in China, FCA hearts E15

Fiat Chrysler Automobiles (FCA) has approved the use of E15 in its 2016 model year vehicles. The Renewable Fuels Association is pleased with the automaker's choice to cover the higher ethanol blend in its warranty statements, describing it as a positive signal for the future growth of E15. "FCA's decision to join GM and Ford provides clear evidence that the tide on E15 has turned," says RFA President and CEO Bob Dinneen. "The automaker's decision not to embrace E15 had been a major point of concern and tension for the last three years." Read more from the RFA. Skoda's head of purchasing, Dieter Seemann, discusses sourcing EV components in a new interview. He says the biggest challenge is seeking out future suppliers for electric motor and connected vehicle components. "We have to really understand what happens in this business to identify the right partners to have in five to eight years from now," says Seemann. "Many of these are suppliers completely new to us." He says Skoda purchases 50 to 55 percent of its parts directly, while chassis and powertrain parts are shared among other Volkswagen Group brands. Read the full interview at Automotive News Europe. Nissan is helping the European Commission develop a pedestrian alert system for electric vehicles. Called Electric Vehicle Alert for Detection and Emergency Response (eVADER), the project aims to develop technology that provides audible cues to alert pedestrians to oncoming vehicles without contributing to noise pollution. Nissan created a system for the Leaf that uses a camera to recognize pedestrians and cyclists and direct a sound in their direction. This work will help the EU shape its laws moving forward. Read more at Electric Cars Report. The Nissan Murano Hybrid has gone on sale in China. The Murano Hybrid is powered by a supercharged 2.5-liter engine and an electric motor with lithium-ion battery. The hybrid uses Nissan's All Mode 4x4-i all-wheel-drive system, and is equipped with a host of safety technology. The new Murano helps Nissan cater to China's growing demand for SUVs, and is also part of the "Young Nissan" strategy. Read more at Green Car Congress, or in the press release below. Nissan introduces the all-new Murano to China SHANGHAI, China(August 8, 2015) – Nissan today announced that the all-new Murano, including the hybrid version, is officially available for sale from its joint venture in China, Dongfeng Nissan Passenger vehicle company (DFL-PV).

Recharge Wrap-up: Fiat 500X emissions, Japan EV sales down

The Fiat 500X exceeds EU emissions limits, according to environmental lobby group DUH. In dyno tests, DUH found NOx emissions in the diesel-powered 500X to be 11 to 20 times the limit with a warm engine, but closer to the limit with a cold engine. Testing of vehicles from Fiat and other automakers "point towards defeat devices," says DUH campaigner Axel Friedrich. Fiat Chrysler Automobiles (FCA) offered no comment in response to the accusations. Read more from Reuters. A UK study finds that about 20 percent of the benefits from fuel efficient vehicles are negated by a tendency for people to drive them more. The study, which covers the years 1970 to 2011, finds a significant "rebound effect," when consumers use more of a cheaper energy source. It suggests these drivers drive more not because of the fuel efficiency, but because of the lower operating costs. "Until now, we didn't know the size of this effect for British motoring," says Dr. Lee Stapleton, Research Fellow for the University of Sussex Centre on Innovation and Energy Demand. "We found evidence of a significant, long-term rebound and expect our results to be of interest for public policy." Read more at Green Car Congress. Japanese EV sales have declined for the first time ever. Sales of electric vehicles slid 22 percent in 2015, leaving them at the same levels as 2012. Low gasoline prices are to blame, as well as the late arrival of the updated Nissan Leaf, which caused potential customers to hold off on their purchase. This allowed the Mitsubishi Outlander PHEV to take the lead as Japan's best selling EV. The Toyota Prius Plug-In came in third place in EV sales, with the BMW i3 close on its heels. Read more from EV Sales. Featured Gallery 2016 Fiat 500X: First Drive View 34 Photos Related Gallery Mitsubishi Outlander PHEV Concept-S: Paris 2014 View 12 Photos News Source: Reuters, Green Car Congress, EV SalesImage Credit: Copyright 2016 Drew Phillips / AOL Green Fiat Mitsubishi Nissan Emissions Fuel Efficiency Electric recharge wrapup