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VW decides against active-cooling system for e-Golf lithium battery

When the 2015 VW e-Golf was introduced at the LA Auto Show last year, VW said it would come with a water-cooled battery. During the Detroit Auto Show, when the car was trotted out again, VW released a new press release that stripped out the "water-cooled" language, but this change went unnoticed. During a recent VW event in Germany, a friend from Green Car Reports realized that the battery on display did not seem to have any water-cooling mechanisms. That set us off on a bit of a sleuthing and we have now learned that VW is not going to include any active cooling in the upcoming e-Golf. In fact, the company is entirely confident that this car - because of what it's designed to do - doesn't need it. "The need for a cooling system wasn't there" - VW's Darryll Harrison VW has been working on an electrified Golf for ages now, and so changes to the plan are to be expected. But battery cooling is vitally important not just to keep the car operating properly but because when things get too hot, there can be serious public relations problems. Nissan began testing a new battery chemistry for the Leaf in 2013 after an uproar from warm-weather EV drivers in Arizona who were experiencing worse-than-expected battery performance. The Leaf has always used an air-cooled battery, which is another way to say that there is no active cooling system (more details here). Tesla CEO Elon Musk once said this approach is "primitive." So, why is VW following the same path? We asked Darryll Harrison, VW US's manager of brand public relations west, for more information, and he told AutoblogGreen that VW engineers discovered through a lot of testing of the Golf Mk6 EV prototypes, that battery performance was not impacted by temperatures when using the right battery chemistry. That chemistry, it turns out, is lithium nickel manganese cobalt oxide (NMC) in cells from Panasonic. These cells had "the lowest self-warming tendency and the lowest memory effect of all cells tested," Harrison said. He added that VW engineers tested the NMC cells in places like Death Valley and Arizona and found they didn't warm very quickly either through operation, charging (including during fast charging) or through high ambient temps. "The need for a cooling system wasn't there," Harrison said.

Recharge Wrap-up: 2015 Fuel Economy Guide available, how Porsche ships 919 Hybrid

The EPA and Department of Energy have released the 2015 Fuel Economy Guide. Unsurprisingly, the groups say that this year features more fuel efficient and low-emissions vehicles than previous years, and they span a greater variety of vehicle types. The guide also provides "best-in-class" lists, greenhouse gas ratings and estimated fuel costs for each vehicle. The EPA and DOE hope that car buyers will use the guide to help choose cars that are better for the environment and the climate. Check out the guide for yourself or read more in the press release below. To get from one WEC race to the next, Porsche ships its 919 Hybrid LMP1 cars by air. As the team travels around the world - from continent to continent - it must take 35 tons worth of cargo with it, including two LMP1 cars. That means draining fluids, partially dismantling the cars, and fitting everything into a 747. The team also ships items by sea, which requires shipping extra sets of items due to the longer shipping times. "It's all about efficiency," according to Porsche. Read more in the press release below. Terra Motors is unveiling the A4000i electric scooter, which it will sell in Europe, at the EICMA motorcycle show in Milan. The A4000i, which features smartphone connectivity, will be the company's European flagship model. Terra Motors will begin selling in Italy, and plans to make arrangements to sell in several more countries shortly after. Terra hopes to set up manufacturing in Europe, as well. Also on display at EICMA is the company's Bizmo II electric scooter, which has a driving range of 93 miles on a single charge. Read more in the press release below. Volkswagen is providing a 2015 e-Golf to Stanford University for research. The car will be used to study electric mobility, improvements in the driving experience and people's driving behavior and attitudes toward EVs. "Volkswagen's longstanding relationship with Stanford has allowed us to push the boundaries of automotive research and innovation," says Volkswagen's Ewald Goessmann, "and we look forward to extending our work together to drive advances in electric vehicles." See the video and read more in the press release below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. EPA, DOE Release 2015 Fuel Economy Guide for Car Buyers The U.S.

Car and Driver 10Best list cracked by Tesla Model S, BMW 3 Series left off

Car and Driver is keeping new blood pumping into its annual 10Best cars list with three new entries making it on for 2015 and a perennial favorite falling off. Among the biggest shocks this year is that the BMW 3 Series and 4 Series are no longer named, despite years of some portion of that lineup earning a mention. In another surprise, the Tesla Model S (specifically in S 60 trim to fit under the $80,000 cost cap) makes it to the 2015 roster and is the only electrically motivated member of the group. Despite the loss of the 3 Series, BMW isn't entirely shut out this year, because the M235i gets its name on the list. Car and Driver argues that the little coupe feels like a welcome throwback to the E46 chassis M3 of the early 2000s. In addition to the Model S, the final newbie to the annual group is the 2015 Ford Mustang GT. The inclusion of these new members knocks the Audi A6/A7 family and Ford Fiesta ST out from the 2014 rundown. The other seven models carry over from last year, including the Cadillac CTS, Chevrolet Corvette Stingray, Honda Accord, Mazda3, Mazda6, Porsche Boxster/Cayman and Volkswagen Golf/GTI. The 2015 10Best cars list certainly seems to have something for everyone from the hot hatch fan to the family man and even the green car driver, thanks to the addition of the Tesla. Head over to Car and Driver to read its detailed explanations for each vehicle's inclusion, but if you've got a difference of opinion or just really like the list, let us know in Comments. Featured Gallery Car and Driver 2015 10Best Cars List View 10 Photos News Source: Car and DriverImage Credit: Car and Driver, BMW, Cadillac, Chevrolet, Ford, Honda, Mazda, Porsche, Tesla, Volkswagen Auto News BMW Cadillac Chevrolet Ford Honda Mazda Porsche Tesla Volkswagen Convertible Coupe Hatchback Performance Sedan 10Best