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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.

Volkswagen sketches Geneva-bound concept

Volkswagen has released a pair of sketches that give us our first official glimpse at the company's new concept car, set to debut at the Geneva Motor Show next week. Details are slim – the car doesn't even have a name yet – but we do have some facts about VW's swoopy new showcar. First off, it's a sedan – well, "four-door coupe" – but is said to have a hatchback configuration. Autoblog has also learned that the car will be powered by a hybrid powertrain, using a TSI gasoline engine paired with two electric motors, and uses an all-wheel-drive configuration that's likely similar to that in the recently unveiled Cross Coupe GTE concept. Volkswagen says this showcar uses a new, progressive design language for the brand. And while it sort of looks like a dead ringer for a new CC, we're told this concept is positioned above that model. For now, that's all we know, but we expect a host of other details to be released closer to the car's official debut in Geneva next week. Stay tuned. Related Gallery Volkswagen Geneva Showcar Sketches News Source: Volkswagen Design/Style Green Geneva Motor Show Volkswagen Concept Cars Hybrid Sedan 2015 Geneva Motor Show

Volkswagen building budget car family planned for China in 2018

Volkswagen has publicly pondered a low-cost car for China, something akin to Nissan's Datsun revival in Southeast Asia, for at least three years. In 2013 it tapped Chinese partner FAW to help develop an entire budget brand, with plans to have something on the market in 2016 in the 6,000- to 8,000-euro range. About a year ago, VW said it couldn't figure out how to engineer an inexpensive car that didn't run counter to the brand's values, then three weeks later said it had overcome the issues. Reuters now reports that VW CEO Martin Winterkorn told German newspaper Bild am Sonntag, "We will bring a budget-car family to market in 2018, with an SUV, saloon and hatchback." Winterkorn didn't offer any other details like who VW would work with to build it - VW has partnerships with both FAW and SAIC, but the announcement will be welcomed by the brand's Chinese outpost. When this adventure started, VW said it was working to create a model that would cost 6,000 to 8,000 euro. That estimate has increased. Winterkorn is now saying the 2018 offerings will come in between 8,000 and 11,000 euro. In a straight euro-to-yuan conversion, that would equate to Chinese pricing of 56,000 to 77,000 yuan. For comparison, the New Polo with a 1.4-liter engine and a manual transmission starts at 85,900 yuan. Perhaps with an eye on the success of the Nissan-Renault sub-brand Dacia in Europe and emerging markets, Winterkorn told Bild, "We will see if this is something of interest for other markets as well." On the opposite end of the price/performance spectrum, Winterkorn also said that VW is working on two new models for Bugatti, one powered by a traditional gasoline engine and another with some sort of hybrid setup. The latter model would reportedly be the higher-performing of the two, though it's not clear whether there would be two vehicle lines or two versions of the same vehicle. As ever, as soon as we know more, so will you.