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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.

UAW tactics called into question at VW's TN plant

The United Auto Workers is in hot water with some of the very workers it is trying to unionize at Volkswagen's Chattanooga assembly plant. According to The Tennessean, eight Volkswagen factory workers have filed complaints against the UAW with the National Labor Relations Board, claiming the union "misled or coerced" them into formally asking for union representation.
The UAW has instituted a major push at the Chattanooga plant to represent the 2,500 hourly laborers that build the VW Passat by using what's called a card-check process. The tactic is opposed by the National Right to Work Legal Defense foundation, the group representing the workers. The card-check process demands that a company recognize a union that obtains the signatures of more than half its workforce, according to The Tennessean. This tactic is in contrast to the more traditional route, which sees employees vote on union representation.
The workers filing the complaint claim that the UAW told them the cards merely called for a secret ballot, rather than an outright demand for union representation. Workers also allege that the UAW has made it overly difficult to reclaim their signed cards, some of which were signed so long ago that they have been rendered invalid. Although the cards can force a company's hand, federal law still allows the company to ask for a secret ballot before yielding to unionized workers.

European car sales up 8% in February

Three weeks ago an analyst increased projections for European car sales this year, expecting them to climb three percent compared to last year instead of 2.7 percent. That number is a postive sign after years of hard times but it turns out February was especially good, overall European sales climbing eight percent on a wave of southern European recovery and discounts - and this comes after five months of gains including January's 7.2-percent jump over the year before.
The only country of Europe's five largest markets to post a decline was France, just as it did in January, Germany, the UK and Italy posting solid double-digit numbers, Spain rocking the charts with an 18-percent increase because of a government program to encourage trade-ins.
The only brand to miss the wave was Volkswagen, dropping 0.8 percent as it watched the double-digit growth at sister brands Audi, Seat and Skoda lift the Volkswagen Group sales up by seven-percent. Peugeot overcame flat sales at Citroën to improve the group by 3.5 percent, BMW and the Mercedes-Benz/Smart combo rose by four percent, the Fiat group jumped 5.8 percent, Ford was up 11 percent, the Renault Group 11.5 percent, General Motors 12 percent and the Toyota clan by 14 percent.