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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.

Mueller named Audi boss, too

Matthias Muller, chairman of the board for the Volkswagen Group, has officially taken the role of chairman of the supervisory board for subsidiary Audi. Muller takes over the role from the disgraced Martin Winterkorn. This appointment should come as a shock to no one, and not just because we told you about it last week. Since Audi is part of the Volkswagen Group, which Muller leads, he's effectively been the head of the subsidiary brand since his appointment in late September. This news simply formalizes his positioning at the Ingolstadt-based company. This, of course, is not Muller's first go-around at Audi. He previously served as Head of Product Management Audi (along with Lamborghini and Seat), before taking the lead on product planning at the entire VW Group. Check out the official press release from VAG. MATTHIAS MULLER BECOMES CHAIRMAN OF THE AUDI SUPERVISORY BOARD Ingolstadt/Neckarsulm, December 7, 2015 – The Chairman of the Board of Management of Volkswagen AG, Matthias Muller, has joined the Supervisory Board of AUDI AG and becomes its Chairman with immediate effect. Berthold Huber will continue to be Deputy Chairman. Furthermore, the two vacant seats for members representing the shareholders will be newly occupied by Julia Kuhn Piech and Josef Ahorner. Matthias Muller has been a member of the Board of Management of Volkswagen AG since March 1, 2015 and its Chairman since September 25, 2015. After completing high school in Ingolstadt, he did a toolmaker's apprenticeship at Audi. He then studied informatics at the Munich University of Applied Sciences. After graduating in informatics, Muller continued his career at Audi in 1978, progressing to become the Head of Product Management for the Audi, Lamborghini and SEAT brands. From 2007 onwards, Muller was Head of Product Management for the Volkswagen Group and the VW brand as well as Executive Vice President of the Volkswagen Group. From 2010 until September 2015, Matthias Muller was Chairman of the Board of Management of Dr. Ing. h.c. F. Porsche AG. Josef Ahorner (55) is the chairman of the supervisory board and main shareholder of Emarsys AG, and was a member of the shareholder committee of Salzburger Porsche Holding from 1996 until 2008. Julia Kuhn-Piech (34) is a real estate manager and a member of the supervisory boards of MAN SE and the Truck & Bus division of MAN AG.

Regulators consider adding more carmakers to Takata recall

Volkswagen's diesel emissions scandal has been getting a lot of press recently, but the Takata airbag inflator affair could be grabbing headlines again soon. According to Bloomberg, the National Highway Traffic Safety Administration is contemplating an expansion to the campaign that could add seven automakers to the 12 already affected. They are Jaguar Land Rover, Mercedes-Benz, Spartan Motors, Suzuki, Tesla, Volvo Trucks, and VW Group. To be clear, there's no recall for any of these automakers, yet. The government is simply asking for a full list of vehicles that each of them have with Takata-supplied inflators containing ammonium nitrate propellant. The agency is concerned this substance could play a roll in the ruptures. "NHTSA is considering not only whether to issue an administrative order that would coordinate the remedy programs associated with the current Takata recalls, but also whether such an order should include expansion of the current recalls," the letters say. All seven can be viewed, here. From a report supplied by Takata, the government already knows that the company supplied 887,055 inflators with ammonium-nitrate propellant to VW and 184,926 of them to Tesla. In an incident during the summer, a side airbag allegedly burst in a 2015 VW Tiguan. In early September, NHTSA put out a revised report that there were 23.4 million inflators to be replaced in 19.2 million vehicles in the US. An earlier accounting from the agency had about 34 million of the parts in 30 million cars. High humidity is still believed to be among the biggest risk factors for the ruptures. Although, if ammonium nitrate also gets the blame, some already recalled models might need to be repaired again. Related Video: