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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 NMC production guise caught in China

Chinese car site Autohome has what are said to be the first pictures of the Volkswagen New Midsize Coupe concept in production form. VW's NMC was just introduced at the Beijing Motor Show, while background chatter indicated it would go on sale in China, Autohome says that production version will be built at the Shanghai-Volkswagen plant in Ningbo, and the retail guise could be introduced at the Guangzhou Motor Show in November and go on sale that same month.
Assuming this is the production car, its main lines have made the jump from the concept but with less fine detailing, a silver hue and with conventional VW wheels it's lost a little bit of oomph. Still, a few checkmarks on the option sheet can fix most of that, the shape remains handsome and the 2.0-liter turbo underhood keeps performance peppy and mileage frugal enough. You can head to Autohome for a couple more photos of a sedan we'd be happy to make room for over here.

Watch the VW E-Golf get made

If you've ever been on a tour of an automotive factory, you know how mesmerizing it can be to see humans and robots work together to build our four-wheeled friends. The swift automation, the cleanliness, the trained hands deftly fitting pieces together and watchful eyes inspecting every piece of the car, it's all quite impressive, especially if the vehicle is one you, as an observer, are fond of. Even just seeing a fresh, gleaming badge being applied to immaculately painted sheet metal is enough to curl ones toes. Such is the case with this video from of the E-Golf being pieced together in the Volkswagen's Wolfsburg plant. There's no narration or music - just the sounds of production - so it's easy to follow the singular motions that go into the process without distraction, with a slight sense of actually being on the floor. This solo video is only seven minutes long, so it's not quite the epic that was the BMW i3 production series. Therefore, we miss a lot of the initial build, such as pressing the sheet metal, painting, and putting together a lot of the inner workings. What is refreshing to see is how much of the final touches of the electric Golf are done by hand using actual hand tools (and with typical German efficiency). There's even a person riding a bicycle through the factory at one point, which is common at Wolfsburg and also rather quaint. Enjoy the video below, and if you have a suggestion for a good soundtrack to go along with it, sound off in the comments. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.