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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's Winterkorn tells 20,000 staffers of big cost-cutting plans

During a gathering of 20,000 Volkswagen Group employees at company headquarters in Wolfsburg, Germany on Wednesday, CEO Martin Winterkorn dropped a bombshell. The boss stated that the automaker isn't operating efficiently enough and admitted the company needs to radically start cutting back to raise its profit margins. To right the ship, Winterkorn has proposed killing off less profitable models and spending less on research and development.
According to Reuters, Winterkorn wants to raise the VW brand's profit margin from about 2.9 percent in 2013 to a target of 6 percent. To make that possible, his plan amounts to increasing cost cutting until Volkswagen reaches about 5 billion euros ($6.7 billion) per year to get things back in order. "Over the short-term, we urgently need more efficiency and higher profit," the CEO said during his speech, according to Reuters.
However, Winterkorn can't make these decisions unilaterally. Volkswagen's works council also has a seat on the supervisory board to represent laborers, and it isn't likely to take the proposed cuts sitting down.

Autoblog Podcast #389

Episode #389 of the Autoblog podcast is here, and this week, Dan Roth, Chris Paukert, and Mark Pereira from Autoblog Canada talk about Johan deNysschen's move to Cadillac, rumors of more BMW nomenclature changes, a second generation for the Subaru BRZ, and cars from 2004 that we miss. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the new rundown below with times for topics, and you can follow along down below with our Q&A. Thanks for listening! Autoblog Podcast #389: The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics: Johan de Nysschen moves to Cadillac BMW model designations changing even more Subaru BRZ getting second generation Cars We Miss In the Autoblog Garage: 2014 Ducati 899 Panigale 2015 Hyundai Sonata 2015 Volkswagen GTI 2015 Chevrolet Silverato 2500 Diesel Hosts: Dan Roth, Chris Paukert, Mark Pereira Runtime: 01:59:10 Rundown: Intro and Garage - 00:00 Johan deNysschen - 36:12 BMW Nomenclature - 53:58 BRZ - 56:27 Cars We Miss - 01:05:07 Q&A - 01:30:09 Get the podcast: [UStream] Listen live on Mondays at 10 PM Eastern at UStream [iTunes] Subscribe to the Autoblog Podcast in iTunes [RSS] Add the Autoblog Podcast feed to your RSS aggregator [MP3] Download the MP3 directly Feedback: Email: Podcast at Autoblog dot com Review the show in iTunes Auto News Hirings/Firings/Layoffs Podcasts BMW Cadillac Chevrolet Hyundai Subaru Volkswagen