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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 midsize crossover production headed for Chattanooga

Potential labor woes aside, it looks like Volkswagen's Chattanooga, TN factory must have done something that impressed the bosses in Germany, because it sounds like the three-year-old factory is set to score a second model.
The factory currently builds the Passat, and has been in the running alongside VW's Puebla, Mexico factory to build a new crossover vehicle, likely based on the CrossBlue Concept. According to Bloomberg, a pair of unnamed sources have confirmed that Chattanooga is the favorite ahead of an official announcement.
When last we heard about the CrossBlue Concept, word was that a production decision had been delayed over concerns about the three-row CUV's business case. That August 2013 story claimed that a decision regarding the CrossBlue would be pushed back until early in 2014, which means we're ripe for some sort of news, whether good or bad.

Former Porsche CEO Wiedeking indicted over VW takeover bid

Do you recall the failed efforts by Porsche to take over Volkswagen? According to a Bloomberg report, former Porsche CEO Wendelin Wiedeking (above) and ex-CFO Holger Haerter have finally been charged with market manipulation over the exercising of options as part of the German sportscar manufacturer's ill-fated attempt to take over the much larger VW. That failed bid eventually resulted in the reverse coming true - VW swallowing Porsche.
The charges leveled by Stuttgart prosecutors come after a three-year investigation centered around allegations that Porsche execs made a concerted effort to increase the company's share in VW to 75 percent in preparation for a hostile takeover. Porsche had previously told its investors on at least five occasions that it had no intention to buy VW.
Portions of the investigation have subsided, according to prosecutors, citing an inability to prove certain improprieties with a "necessary degree of certainty." The number of charges is down to 5 from a previous 14 counts regarding "information-based market manipulation."