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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.

VW invests in QuantumScape for potentially fireproof, long-range EV batteries

VW might be getting ready to push its plug-in technology in a big way thanks to an investment in the battery startup QuantumScape. Key point: the solid-state battery is said to be fireproof and will offer tremendous range advantages. Details are not abundant yet, but according to Bloomberg, VW of America bought a five-percent stake in QuantumScape (and has an option to raise its holding). The tech could "more than triple" the EV range of VW, Porsche and Audi plug-in vehicles as soon as the middle of 2015, according to unnamed sources that Bloomberg talked to. Former Stanford University researchers started QuantumScape in 2010. The bare-bones QuantumScape website (there's nothing there other than some contact information) doesn't offer many hints about what's happening at the company, but GigaOM's Katie Fehrenbacher notes that QuantumScape is licensing tech from the "All Electron Battery" project at Stanford a few years ago. It certainly sounds amazing: [It's] a completely new class of electrical energy storage devices for electric vehicles that has the potential to provide ultra-high energy and power densities, while enabling extremely high cycle life. The All-Electron Battery stores energy by moving electrons, rather than ions, and uses electron/hole redox instead of capacitive polarization of a double-layer. ... If successful, this project will develop a completely new paradigm in energy storage for electrified vehicles that could revolutionize the electric vehicle industry. If that's what's coming in a future e-Golf or E-Tron, sign us up.

VW CEO talks up 20 new plug-in models in Frankfurt

For years now, Volkswagen has dreamed big, forming plans to become the world's largest automaker. That trajectory includes a big plug-in vehicle push, and the CEO of Volkswagen, Martin Winterkorn, said that his group of companies will bring out 20 more EVs and plug-in hybrids by 2020. The list includes the next Phaeton and the Audi A8. "No commitment to electro-mobility can be any clearer than that," Winterkorn said, according to a VW press release. "Our Group already has the largest connected vehicle fleet on the road. By 2020 we will have transformed all of our new cars into smartphones on wheels." Perhaps most illustrative, Winterkorn admitted that the auto industry has turned a corner. "Technological leadership is no longer solely defined in terms of horsepower and torque," he said. "We are taking the precision, enduring value and quality of our cars into the new, digital world." The VW group is also showing off new plug-in concepts in Frankfurt this week, like the Tiguan GTE and the Porsche Mission E. Winterkorn's prepared remarks do not give out the details of these vehicles, but we'll have all the info from the show floor in short order. Stay tuned. PROF. DR. MARTIN WINTERKORN: "THE REINVENTION OF VOLKSWAGEN" 14/09/15 from Volkswagen Group 20 more electric cars and plug-in hybrids by 2020 announced Group not only has broadest electric fleet, but also largest connected vehicle fleet on the road Customers should benefit from automated driving technologies as quickly as possible Volkswagen taking precision, enduring value and quality of its cars into the digital world Wolfsburg/Frankfurt am Main, September 14, 2015 – In the Volkswagen Group, there is a sense that a new era is dawning. On the eve of the 66th International Motor Show (IAA) in Frankfurt am Main the CEO of Volkswagen Aktiengesellschaft, Prof. Dr. Martin Winterkorn, said on Monday evening: "We are in the process of reinventing Europe's largest automaker, laying the technological, economic and structural foundations." The Group Chairman announced there would be 20 more electric cars and plug-in hybrids by 2020 – from compact cars to the next Phaeton and Audi A8: "No commitment to electro-mobility can be any clearer than that." He said the Group already had the broadest electric fleet in the automobile world, and added that Volkswagen was also at the forefront when it came to the future-oriented field of digitisation: "Our Group already has the largest connected vehicle fleet on the road.